A cheetah is crouched 20 m to the east of an observer (Fig. 2. 6a). At time the cheetah begins to run due east toward an antelope that is 50 m to the east of the observer. During the first 2. 0 s of the attack, the cheetah’s coordinate x varies with time according to the equation (a) Find the cheetah’s displacement between and (b) Find its average velocity during that interval. (c) Find its instantaneous velocity at by taking then then (d) ¢t = 0. 1 s, 0. 01 s, 0. 001 s. Derive an t1 = 1. 0 s t t 2 = 2. 0 s. 1 = 1. 0 s 15. 0 m>s2 2t 2 x = 20 m +. T = 0 expression for the cheetah’s instantaneous velocity as a function of time, and use it to find at t=1. 0s and t=2. 0s
Answers
The displacement of cheetah between t, = 1.0s and t, = 2.0s. The displacement of cheetah is 15m/s. The average velocity during the same time interval is 15m/s^2.
a)
\(t_1=1.05, X_1=20+5=25m \\t_2=2.05, X_2=20+5*4=40m\\X_2-X_1=40 - 25 = 15m/s\)
b) \(\bar{V}\) =\(\frac{x_2 - x_1}{t_2 - t_1}\) = 15/1 = 15 m/s^2
\(c) t_1 =1s, X_1=20 + 5 = 25m \\t_3= 1 +0.1=1.1m/s, X_3=20+6.05=26.05m\\\\V_2= \frac{x_3-x_1 }{t_3-t_1} = \frac{1.05}{0.1}=10.5m/s\\t_4=1+0.01=1.01, X_4=20+5.1005=25.1005m\\\\V_2=\frac{x_4-x_1}{t_4-t_1}=\frac{0.1005}{0.01}=10.05m/s\\t_5=1+0.001=1.001,X_4=20+5.010005=25.010005m\\\\V_2=\frac{x_5-x_1}{t_5-t_1}=10.005m/s\\\)
d) V= 10t {Analytical summary}
t1=1s, V1=10m/s
t2=2s, V2=20m/s
Displacement is a term used in physics to describe the change in position of an object relative to a reference point. It is a vector quantity, meaning it has both magnitude (the distance traveled) and direction. Displacement can be represented graphically using a vector arrow, with the length of the arrow indicating the distance traveled and the direction of the arrow indicating the direction of movement.
Displacement is often confused with distance, but the two terms are not the same. Distance refers to the total amount of ground covered by an object, while displacement refers to the object's overall change in position. For example, if a person walks 10 meters forward and then 10 meters back, their distance traveled would be 20 meters, but their displacement would be zero since they ended up in the same position as they started.
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Complete Question:-
A cheetah is crouched 20m to the east of an observer's vehicle. At time t=0 the cheetah charges an antelope and begins to run along a straight line. During the first 2.0 s of the attack, the cheetah's coordinate x varies with time according to the equation x=20m +(5.0m/s2) t2. (a.) Find the displacement of cheetah between t, = 1.0s and t, = 2.0s (b.) Find the average velocity during the same time interval. (c.) Find the instantaneous velocity at t, = 1.0s by taking At = 0.1s, then At = 0.01s then At = 0.001s (d.) Derive a general expression for the instantaneous velocity as function of time and from it find v, at t=1.0 s and t=2.0s
Related Questions
About how far apart must you hold your hands for them to be separated by 2.9 nano-light-second (the distance light travels in 2.9 ns)
Answers
Your hands must be held 869.65 meters apart to be separated by 2.9 nano-light-seconds.
To calculate the distance between your hands for them to be separated by 2.9 nano-light-seconds, we need to use the speed of light, which is approximately 299,792,458 meters per second.
We can start by converting the distance of 2.9 nano-light-seconds into meters. To do this, we multiply the speed of light by the time it takes for light to travel 2.9 nanoseconds:
2.9 ns x 299,792,458 m/s = 869.65 meters
Therefore, your hands must be held 869.65 meters apart to be separated by 2.9 nano-light-seconds. To put this distance into perspective, it is equivalent to about 9 football fields laid end-to-end or roughly the height of the Burj Khalifa, the tallest building in the world.
It's important to note that this distance is incredibly small on a cosmic scale, as light can travel much further in a fraction of a second across the vast expanse of space. However, it demonstrates the incredible speed and precision of light as well as the importance of precise measurements in scientific research.
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What would happen to a thermodynamic system if you added heat to the system without any work done? This would be impossible because it would violate conservation of energy. The system would have more
Answers
If heat is added to a thermodynamic system without any work done, the system would have more internal energy.
In thermodynamics, the first law of thermodynamics, also known as the law of conservation of energy, states that energy cannot be created or destroyed; it can only be transferred or converted from one form to another.
When heat is added to a system without any work being done, the energy supplied in the form of heat is converted into an increase in the internal energy of the system.
Internal energy refers to the total energy stored within a system, including the kinetic and potential energies of its molecules or particles. When heat is added, the random motion of the particles within the system increases, leading to a rise in the internal energy.
This increase in internal energy can result in various effects depending on the system, such as a rise in temperature, phase changes, or chemical reactions.
It is important to note that adding heat to a system without any work done does not necessarily mean the system would explode. The response of the system would depend on its specific properties, constraints, and the amount of heat added.
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The complete question is:
What would happen to a thermodynamic system if you added heat to the system without any work done? This would be impossible because it would violate conservation of energy. The system would have more internal energy. The system would have more heat. The system would explode.
What change slowly occurs during the main-sequence lifetime of a star?.
Answers
Earlier in this lesson, you spent some time thinking about events that involve matter and energy. Consider balls of different shapes and materials that reach different heights as they bounce off the same floor. What aspect of this event relates to matter? What aspect relates to energy? Font Sizes
Answers
Answer:
See the answer below
Explanation:
The aspect of the event that relates to matter is the materials and different shapes of the balls while the aspect that relates to energy is the heights reached by the balls as they bounce off the same floor.
Matter is generally defined as any substance that has weight and is able to occupy space. Hence, the balls being made up of different materials and shapes means that they are made up of matter.
Energy, however, is generally defined as the capacity to do work. The more the energy of a system, the more the work that can be done by the system. The height reached by the balls is thus an indication of the amount of energy possessed by the balls.
Sample Answer on Edmentum
The materials that the balls are made of relate to matter. The motion of the balls—and the way that energy changes form as the ball moves up and down—relates to energy.
after researchers have gathered data, what do they do next?
Answers
After the researchers have gathered the data researchers would analyze the findings to see if the results tell us about the theory used to guide their study.
The steps in the research process include:
Identifying the Research Problem is the first of the research process' eight steps.Setting research questions, objectives, and hypotheses after reviewing the literature.Selecting a Study Design.Selecting a Sample Design.Gathering Information from the Research Sample Processing and Examining the Research Information.Writing a Research Report: Creating a Research Proposal, Producing a Report, and Sharing and Applying Results.Therefore, After the researchers have gathered the data researchers would analyze the findings to see if the results tell us about the theory used to guide their study.
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15. true or false convection drives movement of the tectonic plates which does not involve subduction.
Answers
The given statement "convection drives movement of the tectonic plates which does not involve subduction" is false because tectonic plate movement caused by mantle convection involves subduction.
Convection plays a crucial role in driving the movement of tectonic plates, which includes subduction. The Earth's mantle is divided into several convection cells that transfer heat and matter from the interior of the Earth towards the surface.
As the hotter material rises towards the surface, it displaces colder and denser material, which sinks back down into the interior. This convection cycle causes the movement of tectonic plates, as the plates are essentially riding on top of the flowing mantle.
Subduction occurs when one tectonic plate is forced beneath another due to differences in density and temperature. This process is driven by the movement of the plates themselves, which in turn is driven by the underlying convection currents in the mantle.
In summary, the movement of tectonic plates is driven by convection currents in the mantle, and subduction is one of the important processes involved in this movement.
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Light is electromagnetic radiation composed of electric and magnetic field components. The electromagnetic spectrum includes light with a range of frequencies, wavelengths, and energies. Which type of electromagnetic radiation has the lowest frequency
Answers
Answer:
radio waves
Explanation:
radio waves
which term describe the substance that forms when two or more types of atoms join?
A. element
B. compound
C. composite
D. mixture
Answers
Answer:
A. element
Explanation:
A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound. All compounds are molecules, but not all molecules are compounds.
why can't you run from momentum?
Answers
Okay, fine. It’s a basic introduction to the concept of momentum.
Un motociclista arranca desde el reposo y mantiene una aceleración constante de 0.14 m/s^2. Calcular: a) En que tiempo recorrerá una distancia de 1.3 Km/h b) Qué rapidez llevará en ese tiempo en m/s y en Km/h *
Answers
Answer:
\(136.28\ \text{s}\)
19.08 m/s or 68.688 km/h
Explanation:
a = Aceleración = \(0.14\ \text{m/s}^2\)
s = Desplazamiento = \(1.3\ \text{km}=1300\ \text{m}\)
u = Velocidad inicial = 0
t = Tiempo empleado
De las ecuaciones cinemáticas obtenemos
\(s=ut+\dfrac{1}{2}at^2\\\Rightarrow 1300=0+\dfrac{1}{2}\times 0.14t^2\\\Rightarrow t=\sqrt{\dfrac{1300\times 2}{0.14}}\\\Rightarrow t=136.28\ \text{s}\)
El tiempo necesario para recorrer una distancia de 1,3 km es \(136.28\ \text{s}\)
\(v^2-u^2=2as\\\Rightarrow v=\sqrt{2as+u^2}\\\Rightarrow v=\sqrt{2\times 0.14\times 1300+0}\\\Rightarrow v=19.08\ \text{m/s}=19.08\times 3.6=68.688\ \text{km/h}\)
La velocidad final del automóvil es 19.08 m/s so 68.688 km/h.
What are the names of the 4 types of fronts? How are they created?
Answers
Answer:
Stationary Front, warm front, cold front, Occluded Front.
Explanation:
Stationary Front. When the surface position of a front does not change (when two air masses are unable to push against each other; a draw), a stationary front is formed.
cold front is the leading edge of a cooler mass of air at ground level that replaces a warmer mass of air and lies within a pronounced surface trough of low pressure. It often forms behind an extratropical cyclone (to the west in the Northern Hemisphere, to the east in the Southern), at the leading edge of its cold air advection pattern—known as the cyclone's dry "conveyor belt" flow. Temperature differences across the boundary can exceed 30 °C (86 °F) from one side to the other. When enough moisture is present, rain can occur along the boundary. If there is significant instability along the boundary, a narrow line of thunderstorms can form along the frontal zone. If instability is weak, a broad shield of rain can move in behind the front, and evaporative cooling of the rain can increase the temperature difference across the front. Cold fronts are stronger in the fall and spring transition seasons and weakest during the summer.
A warm front is a density discontinuity located at the leading edge of a homogeneous warm air mass, and is typically located on the equator-facing edge of an isotherm gradient. Warm fronts lie within broader troughs of low pressure than cold fronts, and move more slowly than the cold fronts which usually follow because cold air is denser and less easy to remove from the Earth's surface. This also forces temperature differences across warm fronts to be broader in scale. Clouds ahead of the warm front are mostly stratiform, and rainfall gradually increases as the front approaches. Fog can also occur preceding a warm frontal passage. Clearing and warming is usually rapid after frontal passage. If the warm air mass is unstable, thunderstorms may be embedded among the stratiform clouds ahead of the front, and after frontal passage thundershowers may continue. On weather maps, the surface location of a warm front is marked with a red line of semicircles pointing in the direction of travel.
In meteorology, an occluded front is a weather front formed during the process of cyclogenesis. The classical view of an occluded front is that they are formed when a cold front overtakes a warm front, such that the warm air is separated (occluded) from the cyclone center at the surface. The point where the warm front becomes the occluded front is called the triple point; a new area of low-pressure that develops at this point is called a triple-point low. A more modern view of the formation process suggests that occluded fronts form directly during the wrap-up of the baroclinic zone during cyclogenesis, and then lengthen due to flow deformation and rotation around the cyclone.
Answer:
Cold Front
Warm Front
Stationary Front
Occluded front
A cold front forms when a cold air mass pushes into a warmer air mass
A warm front forms when a warm air mass pushes into a cooler air mass
A stationary front forms when a cold front or warm front stops moving
At an occluded front, the cold air mass from the cold front meets the cool air that was ahead of the warm front
Explanation:
I hope this helps!
fill in the blank. ____ to avoid rear wheel traction loss on a slippery surface
Answers
Reduce acceleration to avoid rear wheel traction loss on a slippery surface.
What is rear wheel traction loss?Rear wheel traction loss is also known as rear wheel skid which refers to a situation where the rear wheels of a vehicle lose grip or traction on the road surface.
This typically occurs when the amount of traction available between the tires and the road is insufficient to maintain control and traction during acceleration, braking, or cornering.
Rear wheel traction loss can result in a loss of vehicle control, causing the rear end of the vehicle to slide potentially leading to accidents or loss of control.
Thus, to avoid rear wheel traction loss on a slippery surface, it is important to reduce acceleration and maintain a smooth, steady speed.
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To avoid rear wheel traction loss on a slippery surface, it is important to increase the friction between the tires and the road. This can be achieved by using winter tires, reducing speed, and avoiding sudden acceleration or braking.
When driving on a slippery surface, such as ice or wet roads, it is important to take measures to maintain traction and avoid losing control of the vehicle. Traction refers to the grip or adhesion between the tires and the road surface. In order to avoid rear wheel traction loss on a slippery surface, it is necessary to increase the friction between the tires and the road.
One way to achieve this is by using winter tires, which are designed to provide better traction on snow and ice. Winter tires have a different tread pattern and rubber compound that helps them maintain grip in cold and slippery conditions.
Another important factor is reducing speed. Driving at a slower speed allows the tires to maintain better contact with the road surface, increasing traction and reducing the risk of losing control.
Avoiding sudden acceleration or braking is also crucial. Sudden acceleration can cause the tires to spin and lose traction, while sudden braking can lock up the wheels and result in a loss of control. Gradual and smooth acceleration and braking help to maintain traction.
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Which evidence did Wegener use to develop the theory of continental drift?
A. The climate of Siberia has always been the same.
B. There is no evidence of glaciers anywhere in South America.
C. Similar fossils were found on different continents.
D. The Rocky Mountains are taller than the Appalachian Mountains.
Answers
Answer:
ExplaB. There is no evidence of glaciers anywhere in South Americnation:
Answer: b
Explanation:
A pendulum is swinging next to a wall. The distance from the bob of the pendulum to the wall varies in a periodic way that can be modeled by a trigonometric function.
Answers
The formula of the trigonometric function that models the distance HHH from the pendulum's bob to the wall after t seconds is
H(t) = 15 -6sin(2.5π(t -0.5))
Detailed explanation:
The function can be expressed as the following for the midline M, amplitude A, period T, and time t0 at which the function deviates from the midline:
H(t) = M -Asin(2π/T(t -t0))
The equation is based on the parameters M=15, A=6, T=0.8, and t0 = 0.5.
H(t) is equal to 15 -6sin(2.5π(t -0.5))
What is function?The trigonometric functions in mathematics are real functions that connect the right-angled triangle's angle to the ratios of its two side lengths .In all areas of study that involve geometry, such as geodesy, solid mechanics, celestial mechanics, and many others, they are widely used.
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The correct question is:
A pendulum is swinging next to a wall. The distance from the bob of the swinging pendulum to the wall varies in a periodic way that can be modeled by a trigonometric function.
The function has period 0.80.80, point, 8 seconds, amplitude 6 \text{ cm}6 cm6, start text, space, c, m, end text, and midline H = 15 \text{ cm}H=15 cmH, equals, 15, start text, space, c, m, end text. At time t = 0.5t=0.5t, equals, 0, point, 5 seconds, the bob is at its midline, moving towards the wall.
Find the formula of the trigonometric function that models the distance HHH from the pendulum's bob to the wall after t seconds. Define the function using radians.
Identify scalar or vector quantity:
The football player was running 10 miles an hour towards the end zone.
Answers
Answer:
vector because it gives direction
Explanation:
During an all-night cram session, a student heats up a 0.858 liter (0.858 x10 −3
m 3
) glass (Pyrex) beaker of cold coffee. Initially, the temperature is 18.2 ∘
C, and the beaker is filled to the brim. A short time later when the student returns, the temperature has risen to 90.6 ∘
C. The coefficient of volume expansion of coffee is the same as that of water. How much coffee (in cubic meters) has spilled out of the beaker?
Answers
approximately 2.093 x 10^(-6) cubic meters (or 2.093 milliliters) of coffee has spilled out of the beaker.To calculate the volume of coffee that has spilled out of the beaker, we can use the concept of thermal expansion. The change in volume is given by the formula ΔV = βVΔT, where β is the coefficient of volume expansion, V is the initial volume, and ΔT is the change in temperature.
First, let's convert the initial volume to cubic meters: V = 0.858 x 10^(-3) m^3.
Next, we calculate the change in temperature: ΔT = 90.6 - 18.2 = 72.4 °C.
The coefficient of volume expansion for water (and coffee) is approximately β = 3.4 x 10^(-4) °C^(-1).
Plugging in these values into the formula, we get:
ΔV = (3.4 x 10^(-4) °C^(-1)) * (0.858 x 10^(-3) m^3) * (72.4 °C) = 2.093 x 10^(-6) m^3.
Therefore, approximately 2.093 x 10^(-6) cubic meters (or 2.093 milliliters) of coffee has spilled out of the beaker.
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During a classroom lab activity, students built each of the circuits shown below and measured the current and resistance in each circuit. Each circuit contains a 1. 5-volt battery and each bulb has a resistance of 50 Ω.
When the switch is closed, in which circuit would resistance be the highest and current be lowest?
Answers
Circuit 2 would have the highest resistance and lowest current when the switch is closed.
This is because Circuit 2 has two bulbs in series, meaning that the current must pass through both bulbs to complete the circuit. This increases the overall resistance of the circuit, resulting in a lower current.
Note: This assumes that the other conditions, such as the size and quality of the bulbs and the battery, are the same in all of the circuits. If these conditions change, the resistance and current in the circuits may also change.
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what do halo stars do differently from disk stars?
Answers
Answer: They orbit the galactic center with many different inclinations, while disk stars all orbit in nearly the same plane. ... They have vertical motions out of the plane, making them appear to bob up and down, but they never get "too far" from the disk.
Explanation:
If a beam of light is incident from water (n = 1.33) to crown glass (n1.52) with an incident angle of 40.0 degrees, what is the angle of the refracted beam of light?
Answers
The refracted angle of the light beam, when it moves from water (n = 1.33) into a crown glass (n = 1.52) at an incident angle of 40.0 degrees, is approximately 30.7 degrees.
This value is calculated using Snell's law of refraction, which relates the ratio of the sine of the angles of incidence and refraction to the inverse ratio of the indices of refraction of the two mediums. Snell's law, or the law of refraction, states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equivalent to the reciprocal of the ratio of the indices of refraction. In mathematical terms, n1*sin(θ1) = n2*sin(θ2). Here, n1 and n2 are the refractive indices of the first and second medium respectively, and θ1 and θ2 are the angles of incidence and refraction. Given the refractive indices of water (n1 = 1.33) and crown glass (n2 = 1.52), and the angle of incidence (θ1 = 40.0 degrees), we can calculate the angle of refraction (θ2) using this law. This calculation yields an angle of approximately 30.7 degrees.
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Comparison of rarefraction and compression
Answers
Answer:
In a longitudinal wave, a compression is a region when the particles are closest together. A rarefaction is an area in a longitudinal wave where the particles are the furthest distant from one another. A compression is a zone where the medium is compressed, while a rarefaction is a region where the medium is spread out.
In the figure above, which of the following is the pathway of light that allows the child to see
the ball?
Answers
Answer: Light bulb -> child’s eyes -> ball
Explanation:
I don’t know if it’s correct but I think that’s the answer
a cardboard sheet is cut in the shape of a right angled triangle, with vertices at (0,0), (5.1,0), and (5.1,3.5) units. the thickness of the sheet is uniform. what is the y-coordinate of its center of mass?
Answers
The y-coordinate of the center of mass of the right-angled triangle with vertices at (0,0), (5.1,0), and (5.1,3.5) units and uniform thickness is 1.75 units.
The center of mаss is the point аt which the object is perfectly bаlаnced. The center of mаss of а triаngle is found in а strаightforwаrd mаnner.
To calculate the center of mass, we can use the formula:
ycm = (A1*y1 + A2*y2 + A3*y3) / (A1 + A2 + A3)
where A1, A2 and A3 are the areas of the three triangles created by the vertices, and y1, y2 and y3 are the y-coordinates of the vertices.
In this case, we have the areas of the three triangles created by the vertices:
A1 = 0.5 * 5.1 * 3.5 = 8.675
A2 = 0.5 * 5.1 * 3.5 = 8.675
A3 = 0.5 * 3.5 * 3.5 = 6.125
The y-coordinates of the vertices are
y1 = 0
y2 = 0
y3 = 3.5
Substituting these values into the formula, we get:
ycm = (8.675*0 + 8.675*0 + 6.125*3.5) / (8.675 + 8.675 + 6.125)
= 1.75 units
Thus, the y-coordinate of its center of mass is 1.75 units.
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The __ is the electrical supply, in the form of conductors and equipment, that provides electrical power to the building or structure.
Answers
The power is the electrical supply, in the form of conductors and equipment, that provides electrical power to the building or structure.
A power supply is an electrical supply that is typically used in electrical circuits.
It provides an electrical supply, usually in the form of conductors and equipment, that supplies electrical power to the building or structure.
The amount of power that a power supply can provide is usually measured in watts (W).
Most electrical devices, such as appliances, lighting fixtures, and electronic devices, are designed to operate on a specific voltage level.
Power supplies are used to provide the proper voltage to these devices so that they can operate correctly.
Some common types of power supplies include batteries, transformers, and AC power supplies.
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Once its rockets have ceased firing, an intercontinental ballistic missile will follow a path that is best described as.
Answers
Once its rockets have ceased firing, an Intercontinental Ballistic Missile will follow a path that is best described as an ellipse with the center of the Earth at one focus.
As the ellipse is the set of points, on a plane whose distance from two fixed points sums up to constant, in That describes all free-fall paths near Earth, it got The Major Axis which is the longest diameter and the widest part of the ellipse it basically starts from one side of the ellipse crossing the center to the other side and the Minor Axis which is the shortest diameter and present at the narrowest part of the ellipse.As the ellipse explains all free-fall paths near Earth (free-fall is referred to as the acceleration of objects toward the Earth when dropped at rest)
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what is meant by the term moment in "physics".
Answers
A small canon is placed on top of a fortification the cannon ball leaves the muzzle of the canon with a speed of 85 m/s
Answers
Answer:
Speed of cannonball just before it hits the ground is 90.77 m/s
Explanation:
Complete Question
A small cannon is placed on top of a fortification. the cannonball leaves the muzzle of the cannon with a speed of 85 m/s at an angle of 25°c above the horizontal. just before the cannonball hits the ground, the vertical component of velocity is 48 m/s downward. what is the speed of the cannonball just before it hits the ground? ignore air resistance.
Solution
Given
Speed = 85 m/s
The angle = 25 degrees
When it will hit the ground, then vertical velocity = 48 m/s
However, in the projectile motion, the horizontal component will not change
Vr = V cos (theta) = 85 * cos25
Speed of cannonball just before it hits the ground is
V’ = Sqrt (48^2 + (85 * cos 25)^2) = 90.77 m/s
Which property of a transverse wave stays the same even as the wave's
energy and other properties change?
Wavelength
Frequency
Rest position
Amplitude
ent
1 of 8 QUESTIONS
SUBMIT
Answers
The property of a transverse wave that stays the same even as the wave's energy and other properties change is the wavelength.
The correct option to the given question is option a.
The wavelength is the distance between two successive points of the wave that are in phase. As the wave's energy and amplitude change, the distance between two successive points of the wave that are in phase remains the same.
This is because wavelength is determined by the frequency of the wave and the speed of propagation. The frequency of the wave is the number of cycles of the wave that occur in one second, while the speed of propagation is the rate at which the wave travels through a medium.
If the frequency of the wave and the speed of propagation remain the same, then the wavelength will also remain the same even as the wave's energy and other properties change. This property is known as the characteristic of the wave.The amplitude is the maximum displacement of a point on the wave from its rest position. The frequency is the number of cycles of the wave that occur in one second. The rest position is the position of the medium when it is not disturbed.
Hence, wavelength of a transverse wave remains same even as the wave's energy and other properties change.
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A vector consists both?
Answers
Answer:
magnitude and a direction
Explanation:
Which optical devices can form only virtual images?
Answers
Answer:
B and D
Explanation:
B (not the answer choice) is a hyperbole
Optical devices B and D can form only virtual images. Option C is correct.
What is the image?When light beams from an object reflect off a mirror, they intersect with the picture of that thing, called an image. Real and virtual images are the two sorts of images.
The following parameters can be used to describe an image:
1. It is possible for an image to be real or virtual.
2. Left-right reversal is possible or not.
3. The image can be inverted or upright.
4. The image can be enlarged, shrunk, or made the same size as the object.
The image characteristic is described by the descriptive words will be;
1. image type.
2. image orientation.
3. image location.
4. image size.
Optical devices B and D can constitute only virtual images.
Hence, option C is correct.
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a container has the mass of 125g when a liquid is added the mass becomes 163g what is the mass of the liquid