The focal length of the lens is -9.60 cm.
Focal length is a fundamental concept in optics, specifically in relation to lenses and mirrors. It is defined as the distance between the focal point and the lens or mirror.
The formula used to find the focal length of the lens is:
\(\frac{1}{f} = \frac{1}{v} + \frac{1}{u}\), where, f = focal length, v = image distance, u = object distance
Substituting the given values in the above formula we get:
\(\frac{1}{f} = \frac{1}{v} + \frac{1}{u}=\frac{1}{-14.0}+\frac{1}{-31.0} \frac{1}{f} = -0.0714 - 0.0323\) = (taking negative common)
\(\frac{1}{f} = -0.1037\) or, \(\frac{1}{f}= -0.104\)(approx.)
Taking reciprocal on both sides, we get:
f = -9.5964 cm or, f = -9.60 cm (approx.)
Hence, the focal length of the lens is -9.60 cm.
To know more about focal length visit:
https://brainly.com/question/3175596
#SPJ11
III. Directions: Write TRUE if the statement is correct if FALSE change the incorrect underline word. Write your answers on a separate answer sheet of paper. 1. The night- vision goggles make use of microwave. 2. Infrared remote controls are used in TV, video, cassette recorders and other electronic appliances. 3. Radio waves are used in in communication devices, car locking system and computers. 4. Microwaves are reflected in many directions by the fan and the walls of the microwave oven during baking of or cooking of food. 5. Radio waves scanners are used to show the temperature variation of the body. This can be used for medical diagnosis.
infrared
true
infrared
true
infrared
What is the kinetic energy of a 150 kg object that is moving at a speed of 5
m/s?
Answer:
Kinetic Energy=1/2×m×v^2,Where m=mass,v=velocity. So, kinetic energy of the object=1/2×150×15^2 = 16875 kg m^2 s^-2 .
Explanation:
math lol
Which of the following is a muscle on the front side of the upper body?
Answer:
What are the following?
Explanation:
Once broken into parts curved motion can be worked as ________________ problems along both axes.
Answer:
projectile motion
Explanation:
i am not sure sorry
Two rocket ships approach a space station at 80% of the speed of light from opposite directions. each pilot observes the other ship approaching at __ the speed of giht
Two rocket ships approach a space station at 80% of the speed of light from opposite directions. each pilot observes the other ship approaching at 0.98 c the speed of light.
What do you understand by speed of light ?Speed of light, the rate at which light waves move through various substances. Specifically, the speed of light in a vacuum is presently calculated to be 299,792,458 meters per second. One of nature's basic constants is the speed of light.
American physicist Albert Michelson used an eight-sided spinning mirror system to conduct his research in the mountains of Southern California during the 1920s and produced one of the earliest accurate calculations of light's velocity.
It is given that
\(V_{AB} =\frac{V_{A} +V_{B}}{1+\frac{V_{A} V_{B} }{c^{2} } } \\V_{AB} =\frac{.8c+0.8c}{1+\frac{.8cX.8c}{c^{2} } } \\V_{AB} = 0.98c m/s\)
To learn more about speed of light, visit: https://brainly.com/question/1555553
#SPJ4
Find the maximum power that can be delivered to the resistor R in the circuit of the figure. Take Vs=23 V. 10 V 2Ω w 322 w R w V 7 5 522 6A The maximum power that can be delivered to the resistor is 1 mW.
The maximum power that can be delivered to the resistor R is 1 mW when R has a resistance of approximately 0.00135 Ω.
To find the maximum power that can be delivered to the resistor R, we need to calculate the Thevenin equivalent circuit of the circuit shown in the figure. To do this, we need to first calculate the Thevenin voltage (V_th) and the Thevenin resistance (R_th). Step 1: Calculate V_th To calculate V_th, we need to find the open circuit voltage across the terminals A and B.
We can do this by removing the resistor R from the circuit and finding the voltage across the terminals A and B using voltage division. The voltage across the 2Ω resistor is: \(V_1 = (10 V) * (2Ω / (2Ω + 3Ω + 5Ω)) = 2 V\) The voltage across the 5Ω resistor is: \(V_2 = (10 V) * (5Ω / (2Ω + 3Ω + 5Ω)) = 5 V\\\) Therefore, the voltage across the terminals A and B is: V_th = V_1 + V_2 = 2 V + 5 V = 7 V
Step 2: Calculate R_th To calculate R_th, we need to find the equivalent resistance looking into the circuit from the terminals A and B with all voltage sources shorted and all current sources open. We can do this by combining the 2Ω, 3Ω, and 5Ω resistors in series: R_eq = 2Ω + 3Ω + 5Ω = 10Ω Therefore, the Thevenin equivalent circuit of the original circuit is :V_th = 7 V R_th = 10 Ω
So, we have: P_max = \((R / R_th)^2 * Vs^2\) We are given that P_max is 1 mW, Vs is 23 V, and we want to find the value of R that satisfies this condition. Substituting the given values, we get: \(1 mW = (R / 10Ω)^2 * (23 V)^2\)Simplifying, we get:\(R^2 = (1 mW * 10Ω^2) / (23 V)^2 R^2 = 1.824e-6 R = sqrt(1.824e-6) R\) = 0.00135 Ω (rounded to 4 significant figures)
Learn more about resistance here:
https://brainly.com/question/30799966
To find the maximum power that can be delivered to the resistor R, we need to use the maximum power transfer theorem and it will be 38.42 mW.
This theorem states that maximum power is delivered to the load resistor when the load resistance is equal to the internal resistance of the source.
First, we need to find the internal resistance of the source. We can do this by finding the equivalent resistance of the circuit:
R₍eq₎ = 2 + (5*2)/(5+2) = 3.29 Ω
Next, we set the load resistance R equal to the internal resistance R₍eq₎:
R = R₍eq₎ = 3.29 Ω
Now, we can use the formula for power to find the maximum power delivered to the resistor:
P₍max₎ = V₍s₎^{2} / (4*R)
P₍max₎ = (23 V)^{2} / (4*3.29 Ω)
P₍max₎ = 38.42 mW
Therefore, the maximum power that can be delivered to the resistor R is 38.42 mW.
To know more about maximum power transfer theorem, refer here:
https://brainly.com/question/1593664#
#SPJ11
3. Since Aspeon is not expected togrow, Emily believes that the following equations can be used in the valuation analysis: (1) S=[EBIT−kd(D)](1−ks)
(2) V=S+D
(3) P=(V−D0)/n0
(4) n1=n0−D/P
(5) VL=VU+TD
The equations mentioned by Emily in the valuation analysis for Aspeon are as follows:
1) Equation (1): This equation represents the value of equity (S) and calculates it based on the EBIT (earnings before interest and taxes), the tax shield provided by debt (D), and the required return on debt (kd) and equity (ks). It implies that the value of equity is equal to the adjusted EBIT after deducting the tax shield from debt.
2) Equation (2): This equation calculates the total enterprise value (V) by adding the value of equity (S) and debt (D). It represents the total worth of the company, considering both equity and debt.
3) Equation (3): This equation calculates the price per share (P) by dividing the total enterprise value (V) minus the initial debt (D0) by the number of shares (n0). It represents the price per share based on the valuation of the company.
4) Equation (4): This equation calculates the new number of shares (n1) by subtracting the dividend (D) from the initial number of shares (n0) divided by the price per share (P). It represents the adjusted number of shares after the payment of dividends.
5) Equation (5): This equation calculates the levered value (VL) by adding the unlevered value (VU) with the tax shield value (TD). It represents the value of the company after considering the tax advantages of debt.
These equations provide a framework for valuation analysis, considering factors such as earnings, taxes, debt, and equity. They help assess the value and financial implications of Aspeon's growth prospects.
To know more about EBIT ,
https://brainly.com/question/31852554?referrer=searchResults
#SPJ11
multi choice
12) When you move your hand or foot, your body has converted potential energy into ________ energy.
Answer: It’s kinetic energy
Explanation: when you move your hand or foot, your body has converted potential energy into kinetic energy.
what is the velocity of a wave that has a frequency of 200 Hz and a wavelength of 0.50 m
Answer:
The velocity of the wave is 100 m/s.
Explanation:
a star is 230 light years away. the light we see tonight from that star left it
A star is 230 light years away. the light we see tonight from that star left it
230 years agoWhat is a light year?Instead of time, a light-year counts distance (as the name might imply). One light-year, or roughly 6 trillion miles, is the distance a light beam travels in one year on Earth (9.7 trillion kilometers).
Since light takes around 230 years to travel the distance from the star to us, the light we see tonight departed that star 230 years ago.
Because of this, astronomers frequently discuss the "lookback time" when seeing far-off celestial objects. The older the light we witness from an object, the further away it is, and the further back in time we can see.
Learn more about light years at:
https://brainly.com/question/803764
#SPJ1
An 893-kg (1974 lb) dragster, starting from rest, attains a speed of 25.8 m/s (57.8 mph) in 0.59 s.
(a) Find the average acceleration of the dragster during this time interval.
(b) What is the magnitude of the average net force on the dragster during this time?
(c) Assume that the driver has a mass of 68 kg. What horizontal force does the seat exert on the driver?
Hello,
I hope you and your family are doing well!
(a) To find the average acceleration of the dragster, we can use the equation:
average acceleration = (final velocity - initial velocity)/time interval
Plugging in the values from the problem, we get:
average acceleration = (25.8 m/s - 0 m/s)/0.59 s = 43.7 m/s^2
(b) The net force on an object is equal to its mass times its acceleration, so the net force on the dragster during this time interval is:
net force = 893 kg * 43.7 m/s^2 = 38,971 N
(c) To find the horizontal force the seat exerts on the driver, we can use the equation:
force = mass * acceleration
The acceleration of the driver is the same as the acceleration of the dragster, which we found to be 43.7 m/s^2. Plugging this value into the equation, we get:
force = 68 kg * 43.7 m/s^2 = 2970 N
So the seat exerts a force of 2970 N on the driver.
Please give this answer 5 stars and brainliest if you find it helpful.
Happy Holidays!
A water jet that leaves a nozzle at 55.47 m/s at a flow rate of 118.25 kg/s is to be used to generate power by striking the buckets located on the perimeter of a wheel. Determine the power generation (kW) potential of this water jet.
Step 1: The power generation potential of the water jet is approximately X kW.
Step 2:
To determine the power generation potential of the water jet, we need to calculate the kinetic energy of the jet and then convert it to power. The kinetic energy (KE) of an object can be calculated using the formula \(KE = 0.5 * m * v^2\), where m is the mass of the object and v is its velocity.
Given that the flow rate of the water jet is 118.25 kg/s and the velocity is 55.47 m/s, we can calculate the mass of the water jet using the formula m = flow rate / velocity. Substituting the given values, we get \(m = 118.25 kg/s / 55.47 m/s ≈ 2.13 kg.\)
Now, we can calculate the kinetic energy of the water jet using the formula\(KE = 0.5 * 2.13 kg * (55.47 m/s)^2 ≈ 3250.7 J.\)
To convert this kinetic energy into power, we divide it by the time it takes for the jet to strike the buckets on the wheel. Since the time is not given, we cannot provide an exact power value. However, assuming a reasonable time interval, let's say 1 second, we can convert the kinetic energy to power by dividing it by the time interval. Thus, the power generation potential would be approximately \(3250.7 J / 1 s = 3250.7 W ≈ 3.25 kW.\)
Therefore, the power generation potential of the water jet is approximately 3.25 kW.
The power generation potential of the water jet depends on its kinetic energy, which is determined by its mass and velocity. By calculating the mass of the water jet using the flow rate and velocity, we can then calculate its kinetic energy. Finally, by dividing the kinetic energy by the time interval, we can determine the power generation potential in kilowatts.
Learn more about potential of the water jet
brainly.com/question/14670095
#SPJ11
a source emits monochromatic light of wavelength 549 nm in air. when the light passes through a liquid, its wavelength reduces to 433 nm. What is the liquid's index of refraction?
A source emits monochromatic light of wavelength 549 nm in air. when the light passes through a liquid, its wavelength reduces to 433 nm, the liquid's index of refraction is approximately 1.269.
The index of refraction (n) of a medium can be calculated using the formula
n = λair / λmedium
Where λair is the wavelength of light in air and λmedium is the wavelength of light in the medium.
Given:
λair = 549 nm
λmedium = 433 nm
Substituting these values into the formula, we get
n = 549 nm / 433 nm
Simplifying the calculation
n = 1.269
Therefore, the liquid's index of refraction is approximately 1.269.
To know more about index of refraction here
https://brainly.com/question/14191704
#SPJ4
A uniform electric field exists everywhere in the x, y plane. This electric field has a magnitude of 4650 N/C and is directed in the positive x direction. A point charge -8.40 10-9 C is placed at the origin.
(a) Determine the magnitude of the net electric field at x = -0.17 m.
N/C
(b) Determine the magnitude of the net electric field at x = +0.17 m.
N/C
(c) Determine the magnitude of the net electric field at y = +0.17 m.
N/C
(a) The magnitude of the net electric field at x = -0.17 m is 1.01x10^5 N/C.
(b) The magnitude of the net electric field at x = +0.17 m is 1.01x10^5 N/C.
(c) The magnitude of the net electric field at y = +0.17 m is 4650 N/C.
Explanation:
To solve this problem, we can use the formula for electric field due to a point charge and the principle of superposition of electric fields.
The electric field due to a point charge is given by:
E = k*q/r^2
where E is the electric field, k is Coulomb's constant (9x10^9 N m^2/C^2), q is the charge, and r is the distance from the point charge.
(a) To find the net electric field at x = -0.17 m, we need to consider the electric field due to the point charge and the uniform electric field. The distance from the point charge to x = -0.17 m is:
r = sqrt((0.17)^2) = 0.17 m
The electric field due to the point charge at x = -0.17 m is:
E1 = kq/r^2 = (9x10^9 N m^2/C^2)(-8.40x10^-9 C)/(0.17 m)^2 = -1.06x10^5 N/C (in the negative x direction)
The electric field due to the uniform electric field is given by:
E2 = 4650 N/C (in the positive x direction)
The net electric field at x = -0.17 m is the vector sum of E1 and E2:
E_net = E1 + E2 = -1.06x10^5 N/C + 4650 N/C = -1.01x10^5 N/C
Therefore, the magnitude of the net electric field at x = -0.17 m is 1.01x10^5 N/C.
(b) To find the net electric field at x = +0.17 m, we follow the same procedure as in part (a). The distance from the point charge to x = +0.17 m is:
r = sqrt((0.17)^2) = 0.17 m
The electric field due to the point charge at x = +0.17 m is:
E1 = kq/r^2 = (9x10^9 N m^2/C^2)(-8.40x10^-9 C)/(0.17 m)^2 = -1.06x10^5 N/C (in the positive x direction)
The electric field due to the uniform electric field is given by:
E2 = 4650 N/C (in the positive x direction)
The net electric field at x = +0.17 m is the vector sum of E1 and E2:
E_net = E1 + E2 = -1.06x10^5 N/C + 4650 N/C = -1.01x10^5 N/C
Therefore, the magnitude of the net electric field at x = +0.17 m is 1.01x10^5 N/C.
(c) To find the net electric field at y = +0.17 m, we only need to consider the electric field due to the uniform electric field, since the point charge is located on the x-axis. The electric field due to the uniform electric field is given by:
E = 4650 N/C (in the positive x direction)
Therefore, the magnitude of the net electric field at y = +0.17 m is 4650 N/C, in the positive x direction
Learn more about electric field:
https://brainly.com/question/8971780
#SPJ4
III.
Solve:
1. An elephant puts a force of 30000N on its four feet, which have a total area of
750cm. What is the pressure exerted by the elephant on the
ground?
please explain T-T
At which position is the Southern Hemisphere experiencing winter?
A. A
B. B
C. C
D. D
Answer:
A
Explanation:
At C, it's summer in the southern hemisphere due to it receiving the most amount of sunlight that, at A, earth is tilted so that the northern hemisphere receives the most amount of sunlight (making it winter for the southern hemisphere)
write an reflection on a design of the device to maximize heat energy transfer and apply information you have learned in this process
In designing a device to maximize heat energy transfer, it is important to consider the materials and design elements that can facilitate efficient heat transfer.
Some key considerations include using materials with high thermal conductivity, maximizing surface area for contact between materials, and minimizing barriers to heat transfer such as insulating layers.
For example, a heat sink in a computer might use copper or aluminum, which are both materials with high thermal conductivity, to draw heat away from the CPU. The design of the fins on the heat sink can also increase the surface area available for heat transfer while reducing the thickness of any insulating layers can help to minimize barriers to heat flow.
Overall, designing for efficient heat energy transfer requires careful consideration of both materials and design elements and a deep understanding of the principles of thermal conductivity and heat transfer.
To know more about thermal conductivity, visit:
https://brainly.com/question/7643131
#SPJ1
When we illuminate lead with ultraviolet light with t a wavelength of 250 nm, suppose we find the maximum potential difference developed between the plates in the experimental setup shown in figure Q4.1b to be 0.82 V From these data and the accepted value of hc, find the potential difference between the plates if the wavelength is 215 nm. Also find W for lead.
The potential difference between the plates if the wavelength is 215 nm is 1.0 V and the value of W for lead is 4.2 eV.
According to the photoelectric effect equation, the potential difference between the plates is given by:
V = (hc/λ) - W/e
Where V is the potential difference, h is Planck's constant, c is the speed of light, λ is the wavelength of the light, W is the work function of the material, and e is the charge of an electron.
From the given data, we can find the value of W for lead by rearranging the equation and substituting the given values:
W = hc/λ - Ve
W = (6.626 × 10^-34 J·s)(3.0 × 10^8 m/s)/(250 × 10^-9 m) - (0.82 V)(1.6 × 10^-19 C)
W = 4.2 × 10^-19 J
W = 4.2 eV
Now, we can find the potential difference between the plates if the wavelength is 215 nm by substituting the given values and the value of W into the equation:
V = (hc/λ) - W/e
V = (6.626 × 10^-34 J·s)(3.0 × 10^8 m/s)/(215 × 10^-9 m) - (4.2 × 10^-19 J)/(1.6 × 10^-19 C)
V = 1.0 V
Therefore, the potential difference between the plates if the wavelength is 215 nm is 1.0 V and the value of W for lead is 4.2 eV.
To know more about potential difference refer here:
https://brainly.com/question/12198573#
#SPJ11
A 2,500 Hz sound wave travels with a speed of 15 m/s in water. A paleontologist measures
the valley to the second valley of the wave to be 7.5 cm.
➤What is the (a) period? What is the (b) frequency? What is the (c) wavelength?
The answers are A. The period of the wave is 4 × 10⁻⁴ s, B. The frequency is 2500 Hz and C. The wavelength is 6 cm.
A sound wave is a type of wave that travels through the medium by compressing and expanding the particles of the medium. These waves have certain characteristics that are used to measure their properties. The following are the answers to the given question: A 2,500 Hz sound wave travels with a speed of 15 m/s in water. A paleontologist measures the valley to the second valley of the wave to be 7.5 cm.a) The period of a wave is the time it takes to complete one cycle. The formula for calculating the period of a wave is Period = 1/Frequency. Here, the frequency of the wave is 2500 Hz. Hence, the period of the wave can be calculated as Period = 1/2500 Hz = 4 × 10⁻⁴ s.b) The frequency of a wave is the number of cycles that pass a point in one second. The formula for calculating the frequency of a wave is Frequency = 1/Period. Here, the period of the wave is 4 × 10⁻⁴ s. Hence, the frequency of the wave can be calculated as Frequency = 1/4 × 10⁻⁴ s = 2500 Hz.c) The wavelength of a wave is the distance between two successive points on the wave that are in phase. The formula for calculating the wavelength of a wave is Wavelength = Wave speed / Frequency. Here, the wave speed of the sound wave is 15 m/s and the frequency of the wave is 2500 Hz. Hence, the wavelength of the wave can be calculated as Wavelength = 15 / 2500 = 0.006 m = 6 cm.For more questions on frequency
https://brainly.com/question/254161
#SPJ8
2. It is weigh-in time for the local under-85-kg rugby team. The bathroom scale used to assess eligibility can be described by Hooke’s law and is depressed 0.75 cm by its maximum load of 120 kg. (a) What is the spring’s effective spring constant? (b) A player stands on the scales and depresses it by 0.48 cm. Is he eligible to play on this under-85 kg team?
Please include all of your steps.
Apply hooke's law
\(\\ \rm\rightarrowtail F=kx\)
\(\\ \rm\rightarrowtail 1176=k(0.0075)\)
\(\\ \rm\rightarrowtail k=156800N/m\)
#b
We need mass again
\(\\ \rm\rightarrowtail F=kx\)
\(\\ \rm\rightarrowtail mg=kx\)
\(\\ \rm\rightarrowtail 9.8m=156800(0.0048)\)
\(\\ \rm\rightarrowtail 9.8m=752.64\)
\(\\ \rm\rightarrowtail m=76.8kg\)
He is e eligibleAbout how long does it take Earth to complete one revolution around the Sun?
1 year
14 days
24 hours
27.3 days
Answer:
1 year = 365 days
because Earth Revolution is the movement of the Earth around the Sun
The earth takes 1 year or 365 days to complete one revolution around the sun. Thus option A is correct.
What is the rotation and revolution of Earth?Rotation and revolution refer to the circular motion of the objects. Rotation is defined as the circular motion of the object about its own axis whereas revolution refers to the circular motion around the other object.
The Earth rotates around its own axis which is called Earth's rotation. The Earth takes 24 hours to rotate on its own axis and the Earth's rotation causes day and night on Earth.
The earth revolves around the Sun which is called Earth's revolution. The Earth takes 365 days to complete one revolution around the Sun and the 365 days is calculated as 1 year. The full revolution of Earth is responsible for climate and seasonal change.
Combined spinning and revolution of Earth lead to changes in daily weather and global climate conditions by affecting wind directions, temperature, and ocean currents, etc.
Thus the Earth takes 1 year to complete one revolution around the Sun. Hence, the ideal solution is Option A.
To learn more about the Rotation and revolution of Earth:
https://brainly.com/question/2976977
#SPJ5
What can we say about waves on the higher end of the electromagnetic spectrum?
A. They have more power and greater dangers.
B. They have higher frequencies and less power.
C. They have shorter wavelengths and less dangers.
D. They have longer wavelengths and less danger.
What is the new orbital speed after friction from the earth's upper atmosphere has done −7. 5×109J of work on the satellite?
The new orbital speed after friction from the earth's upper atmosphere is 8674.15 m/s.
When the work done by a force does not depend on the choice of path, the force is called the conservative force. Some examples are a gravitational force, elastic spring force and electric force. On the other hand, when the work done by a force relies on the choice of the path of the motion, it is called non-conservative force.
The net work done by non-conservative force is W = ΔK + ΔP ----(1)
Given that, work done W = -7.5 * 10⁹ J
Change in kinetic energy = (Kf - Ki)
Final kinetic energy Kf = 1/2* m * Vf²
Initial kinetic energy Ki = 1/2* m * Vi²
Mass of the satellite m = 848 kg
Vf = Final speed
Vi = Initial speed = 9640 m/s
Change in gravitational potential energy ΔP = 0
Substituting the values in (1),
1/2* m (Vf² - Vi²) = W
1/2 * 848( Vf² -9640²) = W
Making Vf as subject,
Vf = √( 2W/m + Vi²)
⇒ √( -2* 7.5 * 10⁹/848 + 9640²)
⇒ 8674.15 m/s
Thus, the final speed decreases due to friction.
To know more about friction:
https://brainly.com/question/14662717
#SPJ4
All types of electromagnetic radiation travel at the speed of light. True or False?
Answer:
True
Explanation:
Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum.
Answer:
absolutely true
Explanation:
as it travels in a speed of 30×108 m per second
a bowl of soup has_____? A:both PE and KE B:PE C:neither PE or KE D:KE
Answer:
A.
Explanation:
A graduated cylinder has 50ml of waterbefore a marble is dropped in. After the marble is dropped in the graduated cyliner the volume level reads 100ml what is the volume of the marble
Answer:
50 mL
Explanation:
The volume of the marble = volume of marble and water in cylinder - volume of water in cylinder = 100 mL - 50 mL = 50 mL
What is the gravitational attraction between two objects of mass of five million kg (5.0 x 10^6) at a distance of 100 meters from each other? Estimate G as 6.67 x 10^-11 N (m/kg)
Answer:
G = 6.67
Explanation:
According to the law of universal gravitation, any two objects are attracted to each other. The strength of the gravitational force depends on the masses of the objects and their distance from each other.
Many stars have planets around them. If there were no gravity attracting a planet to its star, the planet's motion would carry it away from the star. However, when this motion is balanced by the gravitational attraction to the star, the planet orbits the star.
Two solar systems each have a planet the same distance from the star. The planets have the same mass, but Planet A orbits a more massive star than Planet B.
Which of the following statements is true about the planets?
A.
Planet B is more attracted to its star than Planet A.
B.
Planet B will keep orbiting its star longer than Planet A.
C.
Planet A orbits its star faster than Planet B.
D.
Planet A has a longer year than Planet B.
Answer:
C. Plant A orbits its star faster than Plant B
Explanation:
Did it on study island
What is the potential energy of a 5.0 N weight that is 3 m above the ground
Answer:
\(15\:\mathrm{J}\)
Explanation:
The potential energy of an object is given by \(PE=mgh\).
Recall that the weight of an object is equal to the force of gravity on the object. From this, we can set up the following equation and solve for the mass of the object:
\(F=mg,\\5=mg,\\m=\frac{5}{9.81}\approx 0.51\:\mathrm{kg}\)
Now we can plug in values to \(PE=mgh\) and solve:
\(PE=0.51\cdot9.81\cdot3=\fbox{$15\:\mathrm{J}$}\).
Answer:
The potential energy of the body is 15J.
Explanation:
What is potential energy?The energy possessed to a body due to position is called Potential energy.
U=mgh
Given data:weight (mg)=5Nheight (h)=3mPotential energy (U)=?by using formulaU=mgh
U=5×3=15J
Hence, the potential energy of the body is 15J.
https://brainly.com/question/18461965
#SPJ2
explain how energy is conserved in the roller coaster ride include descriptions to at least on energy transfer and least two energy’s transformation
During the ride, no energy is gained or lost. The automobiles' kinetic energy passes to the track, shaking it as energy flows from one location to another.
What is energy transformation?Energy transformation is when the energy is transformed into another energy. Kinetic energy is converted into potential energy, which is subsequently converted back into kinetic energy.
Friction between the cars and the track also converts it from kinetic to thermal energy. The overall amount of energy doesn't change, though.
Therefore, no energy is acquired or lost during the ride. The track is shaken as a result of the kinetic energy of the cars moving from one place to another.
To learn more about energy transformation, refer to the link:
https://brainly.com/question/29979360
#SPJ9