Answers
The battery is powered by a 5V battery. The circuit's equivalent resistance and current are 0.5Ω and 10 A, respectively.
What does equivalent resistance mean?The entire resistance of a group of resistors in an electrical circuit that may be represented by a single resistor is known as equivalent resistance. It is computed either by obtaining the reciprocal of the sum of the reciprocals of the individual resistances in parallel or by adding individual resistances in series.
A single resistor can replace the complete network in order to obtain an equivalent current and/or voltage for a specific applied voltage when employing a network.
It should be feasible to calculate the overall effective resistance of the circuit as a whole or for a specific component when a circuit consists of numerous circuit components.
equivalent resistance:
\(\frac{1}{R}\)= \(\frac{1}{2}\) + \(\frac{1}{2}\) + \(\frac{1}{2}\) + \(\frac{1}{2}\)
R = 0.5 Ω
using the formula
V = IR
I = 10 Ampere.
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Related Questions
Some radar systems detect the size and shape of objects such as aircraft and geological terrain. What is the frequency of such a system which can detect objects as small as 19.1 cm?
Answers
Answer:
\(f=1.57\times 10^9\ Hz\)
Explanation:
Given that,
A system can detect objects as small as 19.1 cm i.e. 0.191 m. It is the wavelength.
We know that,
Frequency, \(f=\dfrac{c}{\lambda}\)
So,
\(f=\dfrac{3\times 10^8}{0.191}\\\\=1.57\times 10^9\ Hz\)
So, the frequency of such a system is equal to\(1.57\times 10^9\ Hz\).
A metal bowl with a weight of 1.85 N is placed in a larger kitchen container filled with castor oil. How much castor oil must the bowl displace in order to float? For reference, the mass density of castor oil is about 961 g/liter and its weight density is about 9.42 N/liter. Please give your answer in liters.
Answers
The metal bowl must displace 0.196 liters of castor oil in order to float.
Archimedes' principle states that when an object is placed in a fluid, the buoyant force on the object is equal to the weight of the fluid displaced by the object. In other words, the amount of fluid displaced by the object is directly proportional to the weight of the object.
We can use the weight density of castor oil, which is 9.42 N/L, to find the volume of oil displaced by the bowl.
Volume of oil displaced = Weight of bowl / Weight density of oil
Volume of oil displaced = 1.85 N / 9.42 N/L = 0.196 L
As a result, in order to float, the metal bowl must displace 0.196 liters of castor oil.
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You see a car that appears very small, so you assume that it must be far from you. You are using the monocular cue of
Answers
The monocular cue of relative size
A wave reflects off a certain boundary. The reflected wave has the same amplitude
and orientation as the incident wave. What is this the result of?
A. The wave experienced destructive interference.
B. The wave experienced constructive interference.
C. The wave reflected off of a free boundary.
D. The wave reflected off of a fixed boundary.
Answers
If the reflected wave has the same amplitude and orientation as the incident wave, it is because the wave experienced destructive interference.
option A.
What is destructive interference?
Destructive interference occurs when waves come together so that they completely cancel each other out. When two waves destructively interfere, they must have the same amplitude in opposite directions.
So when a wave reflects off a certain boundary and the reflected wave has the same amplitude and orientation as the incident wave, it is because both waves interfere destructively.
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how do you Convert 50 g to kg in an equation for physics
Answers
Answer:
Divide by 1000
Explanation:
Find the ratio of the coulomb electric force Fe to the gravitational force Fg between two electrons in vacuum.
Answers
Fe = k * (q1 * q2) / r^2
where k is Coulomb's constant, q1 and q2 are the charges of the particles, and r is the distance between them.
The gravitational force between two particles is given by:
Fg = G * m1 * m2 / r^2
where G is the gravitational constant, m1 and m2 are the masses of the particles, and r is the distance between them.
For two electrons, the charges q1 and q2 are equal and have a magnitude of 1.602 x 10^-19 C, and their masses m1 and m2 are also equal and have a value of 9.109 x 10^-31 kg.
Using the values of Coulomb's constant (k = 8.987 x 10^9 N.m^2/C^2) and gravitational constant (G = 6.674 x 10^-11 N.m^2/kg^2), we can calculate the ratio of the Coulomb electric force to the gravitational force between two electrons in vacuum as:
Fe/Fg = [k * (q1 * q2) / r^2] / [G * m1 * m2 / r^2]
Fe/Fg = k * (q1 * q2) / (G * m1 * m2)
Fe/Fg = (8.987 x 10^9 N.m^2/C^2) * (1.602 x 10^-19 C)^2 / [(6.674 x 10^-11 N.m^2/kg^2) * (9.109 x 10^-31 kg)^2]
Fe/Fg = 2.396 x 10^42
Therefore, the ratio of the Coulomb electric force to the gravitational force between two electrons in vacuum is approximately 2.396 x 10^42.
HI PLEASE HELP ON QUESTION ASAP USING AVERAGE (MEAN) TO ANSWER QUESTION! IF UR ANSWER AND EXPLAINATION IS CORRECT ILL RATE YOU FIVE STARS, A THANKS AND MAYBE EVEN BRAINLIEST. PLEASE MAKE SURE YOU ANSWER MY QUESTION USING AVERAGES.
1) a meal for 6 cost £12 per person. as it is one of the diners birthday , the other 5 decided to pay for his meal. how much do each of the five friends need to pay?
Answers
Each of the five friends needs to pay £12 to cover the cost of their own meals and contribute towards the birthday person's meal. Using mean allows us to distribute the cost equally among the friends, ensuring a fair division of expenses for the meal.
To determine how much each of the five friends needs to pay, we can use the concept of averages (mean) and divide the total cost by the number of people paying.
In this scenario, the total cost of the meal for 6 people is £12 per person. Since the other 5 friends have decided to pay for the birthday person's meal, they will collectively cover the cost of their own meals plus the birthday person's meal.
To calculate the total cost covered by the five friends, we can subtract the cost of one person's meal (since the birthday person's meal is being paid by the group) from the total cost. The cost of one person's meal is £12.
Total cost covered by the five friends = Total cost - Cost of one person's meal
= (£12 x 6) - £12
= £72 - £12
= £60
Now, to find out how much each of the five friends needs to pay, we divide the total cost covered by the five friends (£60) by the number of friends (5).
Amount each friend needs to pay = Total cost covered by the five friends / Number of friends
= £60 / 5
= £12
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The resistance RT of a platinum varies with temperature T(°C), as measured on the constant-volume gas thermometer according to the equation RT = Ro(1+AT+BT^2). Where A = 3.8×10^-3°C^-1 and B = -5.6×10^-7°C^-2. Calculate the temperature that would be on indicated on a platinum thermometer, when the gas scale reads 200°C.
Answers
The resistance indicated by the platinum thermometer at 200°C is 1.648 times the reference resistance Ro at 0°C.
The given equation is RT = Ro(1+AT+BT²), where A = 3.8×10⁻³°C⁻¹ and B = -5.6×10⁻⁷°C⁻². To determine the temperature that would be indicated on a platinum thermometer when the gas scale reads 200°C, we will have to use the given formula. RT = Ro(1+AT+BT²) .....(i)We know that the gas scale reads 200°C. Therefore, we can substitute T = 200°C in equation (i).RT = Ro (1 + A × 200 + B × 200²) = Ro (1 + 0.76 - 0.112) = Ro (1.648)Thus, the resistance that the platinum thermometer would indicate is 1.648 times the reference resistance Ro at 0°C. This is the solution to the problem.In summary, The given equation is RT = Ro(1+AT+BT²), where A = 3.8×10⁻³°C⁻¹ and B = -5.6×10⁻⁷°C⁻². To determine the temperature that would be indicated on a platinum thermometer when the gas scale reads 200°C, we substituted T = 200°C in equation (i) to get RT = Ro (1 + A × 200 + B × 200²) = Ro (1 + 0.76 - 0.112) = Ro (1.648).For more questions on thermometer
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h. If the mass of an object is 390 g and its volume is 50 cm?, then its density is ....... g/cm' or ....... kg/m”.
- The relative density of the object in part "h" is
Edit: nvm I'm an idiot I remembered this but thanks anyway
Answers
Answer: See explanation
Explanation:
The density would like be calculated by dividing the mass by volume. This will be:
Density = Mass / Volume
Density = 390 / 50
Density = 7.8g/cm
A disk drive plugged into a 120V outlet operates on a voltage of 12V . The transformer that powers the disk drive has 125 turns on its primary coil.
Part A) Should the number of turns on the secondary coil be greater than or less than 125? greater than or less than
Part B) Explain
Part C) Find the number of turns on the secondary coil.
Answers
Answer:
(A-) Number of turns in secondary coil will be less than 125.
(B-) EXPLAIN- The voltage is to be lowered. The voltage will be reduced from 120 to 9 volts. As a result, a step down transformer will be used, indicating that the secondary coil's number of turns would be less than 125.
(C-) The number of turns on the secondary coil is 12.5
Explanation:
STEP DOWN TRANSFORMER - A step-down transformer transforms high voltage (HV) and low current from the transformer's primary side to low voltage (LV) and high current on the secondary side. A phase down transformer is the opposite of this.In electrical networks and transmission lines, a step-down transformer can be used in a number of ways.
Step down transformer formula-
\(V_s=\frac{N_s\times V_p}{N_p}\)
We are given with the -
Primary voltage \(V_p\) = 120V
Secondary voltage \(Vs=12V\)
Number of primary turns \(N_p=125\)
To calculate the number of turns on the secondary coil -Since , the transformer ratio is given as -
\(\frac{N_s}{N_p} =\frac{V_s}{V_p}\)
So, the number of turns on the secondary coil is - \(N_s=N_p\times\frac{V_p}{V_s}\)
Putting , the given values -:
\(125\times\frac{12}{120}\)
= 12.5
Therefore , the number of turns on secondary coil is 12.5 .
fill in the blanks waves can travel through ____ .air granite rock molten magma water sandstone mudstone
Answers
Waves can travel through the air, granite rock, water, sandstone, and mudstone. Waves can also travel through molten magma, but only in certain conditions.
What is a wave?In physics, a wave is a disturbance that travels through space and time, usually accompanied by the transfer of energy. Waves can be characterized by their amplitude, wavelength, frequency, and speed.
Here,
Waves can travel through the air, granite rock, water, sandstone, and mudstone. Waves can also travel through molten magma, but only in certain conditions.
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If you drop your keys from the tallest building in San Antonio, how fast will
they be falling after 3 seconds?
9.8 m/s
0 14,7 m/s
29.4 m/s
44,1 m/s
Answers
Hi there!
We can use the equation:
v = at, where in this instance:
v = velocity (m/s)
a = acceleration due to gravity (m/s²)
t = time (s)
g ≈ 9.8 m/s², so:
v = 9.8(3) = 29.4 m/s
A body of mass 1.0 kg initially at rest slides down an incline plane that is 1.0 m high and 10.0 m long. If the body experiences a constant resistive force of 0.5 N over the slope, what is the KE of the body at the base of the plane?
Answers
Answer:
answer is
Explanation:
because
Which is matched correctly with its unit of measure?
luminous flux - lumens
illuminance - malus
illuminance - lumens
luminous flux - lux
Answers
Correctly matched with its unit of measure is : luminous flux - lumens
What is luminous flux?Luminous flux is also called luminous power. It is is the measure of perceived power of light and it differs from the measure of total power of light emitted, called 'radiant flux'.
In photometry, measure of the perceived power of light is known as luminous flux . It differs from radiant flux, measure of the total power of electromagnetic radiation, in that luminous flux is adjusted to reflect varying sensitivity of human eye to different wavelengths of light.
Lumen is the standard unit of luminous flux and luminous flux is the measure of perceived power of light by human eye and we measure luminous flux in lumens.
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A student heated 50mL of water from zero degree Celsius to 60 degree Celsius. How much energy did she use to heat the water? Remember cal = m x delta T
Answers
Answer:
Q = 12.5 kJ
Explanation:
Given that,
Mass of water, m = 50 mL = 0.05 kg
The temperature changes from 0 degree Celsius to 60 degree Celsius.
We need to find how much energy she use to heat the water. The energy required to heat the water is given by :
\(Q=mc\Delta T\)
Where c is specific heat of water, c = 4186 J/kgºC
\(Q=0.05\times 4186 \times (60-0)\\\\=12558\ J\)
or
Q = 12.5 kJ
So, the energy used to heat th water is 12.5 kJ.
Water flows at a speed of 13 m/s through a pipe that has a diameter of 1.2 m. What is the
diameter of the smaller end of the pipe that the water comes out with a speed of 30 m/s?
Answers
The diameter of the smaller end of the pipe is approximately 0.78 meters.
To determine the diameter of the smaller end of the pipe, we can use the principle of conservation of mass. According to this principle, the mass flow rate of water should remain constant throughout the pipe.
The mass flow rate is given by the equation:
Mass flow rate = density of water * cross-sectional area * velocity
Since the density of the water remains constant, we can write:
Cross-sectional area1 * velocity1 = Cross-sectional area2 * velocity2
Given that the velocity1 is 13 m/s, the diameter1 is 1.2 m, and the velocity2 is 30 m/s, we can solve for the diameter2 using the equation:
(pi * (diameter1/2)^2) * velocity1 = (pi * (diameter2/2)^2) * velocity2
Simplifying the equation:
(1.2/2)^2 * 13 = (diameter2/2)^2 * 30
Calculating the equation:
(0.6)^2 * 13 = (diameter2/2)^2 * 30
0.36 * 13 = (diameter2/2)^2 * 30
4.68 = (diameter2/2)^2 * 30
Dividing both sides by 30:
0.156 = (diameter2/2)^2
Taking the square root of both sides:
0.39 = diameter2/2
Multiplying both sides by 2:
0.78 = diameter2
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Two objects are dropped from a bridge, an interval of 1.0 s apart, and experience no appreciable air resistance. As time progresses, the DIFFERENCE in their speeds
a.
increases.
b.
remains constant.
c.
decreases.
d.
increases at first, but then stays constant.
e.
decreases at first, but then stays constant.
Answers
Answer: a
Explanation:
The plot below shows Stress vs. Strain for some material. Use it to determine the Young's Modulus of the material in \left(\frac{N}{m^2}\right)(
Answers
It is a linear relation, for young's modulus we use the next formula
\(\text{Young's Modulus= }\frac{Stress}{Strain}\)\(Y=\frac{5\times10^{-5}}{0.60}=8\times10^5\text{ N/m}^2\)ANSWER
8x10^5 N/m^2
Runner A is initially 6.0 mi west of a flagpole and is running with a constant velocity of 4.0 mi/h due east. Runner B is initially 9.0 mi east of the flagpole and is running with a constant velocity of 4.0 mi/h due west. How far are the runners from the flagpole when they meet? mi
Answers
The runners A and B are 1.5 miles away from the flagpole when they cross paths with each other.
How do speed, time, and distance relate to one another?For instance, speed can be expressed in terms of furlongs per fortnight, miles per hour (mi/hr or mph), or kilometers per second (km/s). It's crucial to remember that distance traveled in relation to travel time is always measured as speed: distance/time
Given: Initially located 6.0 miles west of a flagpole, runner A is moving straight east at a speed of 4.0 miles per hour. With a steady speed of 4.0 miles per hour straight west, runner B is originally 9.0 miles east of the flagpole.
Both runners will collide at the same moment = t
The total distance they will travel together is 6 + 9 = 15 miles.
Consider runner A's speed to be v₁ = 4 mph.
Assume B's speed be equal to v₂ = 4 mph.
We know that,
Distance = Time × Speed
15 = v₁t + v₂t
15 = 4t +4t
15 = 8t
t = 15/8 hours
Runner A's distance travelled = v₁t = 4 (15/8) = 7.5 miles
Distance of runners A and B from the flagpole when they meet =
7.5-6 = 1.5 miles.
Therefore, when the runners A and B meet each other, they are 1.5 miles away from the flagpole.
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a sensor light installed on the edge of a home can detect motion for a distance of 50 feet in front and with a range of motion of 200 degrees. what is the arc length of the area covered
Answers
Answer:
4363.3231 feets²
Explanation:
Given that :
Distance, r = 50 ft
θ = 200°
The arc length of area covered :
Arc length = θ/360° * πr²
Arc length = (200/360) * 50 ft ^2 * π
Arc length = 0.5555555 * 2500 * π
Arc length = 4363.3231 feets²
Now you will focus on a second hypothesis. This hypothesis can be very similar to the first, but this time you want to focus only on the second variable in question, speed. What could be a hypothesis that would illustrate the relationship between speed and kinetic energy? Use the format of "if…then…because…” when writing your hypothesis
Answers
Answer:
Sample Response: If the speed of an object increases, then its kinetic energy will increase proportionally because speed and kinetic energy have a linear relationship when graphed.
Explanation:
edge
a Toyota Celica, travelling initially at 26.9 m/s [S], comes to a stop in 2.61 s. The mass of the car with the driver is 1.18 × 103 kg. Calculate the car’s acceleration.
Answers
The initial velocity of the car is 26.9 m/s [S], and the final velocity is 0 m/s [S]. The time taken for the car to come to a stop is 2.61 s. Using the formula:
acceleration = (final velocity - initial velocity) / time
we can find the car's acceleration:
acceleration = (0 m/s - 26.9 m/s) / 2.61 s
acceleration = -10.305 m/s^2
The negative sign indicates that the car is decelerating, or slowing down.
To calculate the force acting on the car during the deceleration, we can use Newton's second law:
force = mass x acceleration
force = (1.18 × 10^3 kg) x (-10.305 m/s^2)
force = -12,166.1 N
The force acting on the car during deceleration is -12,166.1 N, or approximately 12.2 kN.
Mark and Nancy both take three measurements of the length of a pencil that is 15.1 cm. Mark records 15.0, 15.0, and 15.1 cm. Nancy records 15.1, 15.2, and 15.2 cm. Which of the following statements is true about Mark and Nancy's measurements?
A. Mark's measurement is more precise.
B. Nancy's measurement is more accurate.
C. Mark's measurement is more accurate.
D. Both sets of measurements are equally accurate and precise.
Answers
What is the magnitude (size) and direction of the cumulative force acting on the car shown in the picture above?
Answers
Answer:
5070
Explanation:
add them up and then you get your answers
Answer:
30 N to the right
Explanation:
i got it on study island
The batter swings his bat 1.8 meters in 0.1 seconds. How fast is his bat speed in meters per second?
Answers
Answer:
18 m/s
Explanation:
1.8 meters / 0.1 seconds = 18 m/s
26. Which member of the carbon family is a non-metal?
Please help
Answers
Explanation:
Check out the Periodic Table attached here. The Carbon family is the vertical group starting with Carbon, Group 14. Nonmetals are in green, which element there is a nonmetal?
A student places two magnets as shown; with their south poles equal distances from a compass. The student observes that the compass needle points in the indicated direction. From this observation alone can you determine which magnet is stronger. Justify your reasoning?
Answers
Since the direction of the needle depends on the proximity of the magnet thus this test alone is insufficient to determine the stronger magnet.
What is a magnetic field?A magnetic field refers to the region where the effect of a magnet is felt. The magnetic field can be observed by the use of a compass.
Now, we know that the closer the magnet is to the compass, the greater the deflection hence this test alone is insufficient to determine the stronger magnet.
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The projectile motion of an object can
be described by two independent
vector components that are
______
Answers
Answer:
perpendicular
Explanation:
The projectile motion of an object can be described by two independent vector components that are horizontal and vertical motion.
What is projectile motion?The motion of an item hurled or projected into the air, subject only to gravity's acceleration, is known as projectile motion.
The item is known as a projectile, and the course it takes is known as a trajectory. Falling object motion is a simple one-dimensional kind of projectile motion with no horizontal movement.
The projectile's motion is divided into two parts: horizontal and vertical motion.
Because perpendicular motion components are independent of one another, these two motion components may be treated individually.
Hence two independent vector components are horizontal and vertical motion.
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Explain the light detection technique of photovoltaic detection
Answers
Answer:
Photovoltaic detection is a technique that converts light into electrical energy. It is a process that involves the use of a photovoltaic cell, which is made up of semiconductor materials, to generate an electric current when exposed to light.
The photovoltaic cell absorbs the photons of light, which then knock electrons out of their orbits, creating a flow of electricity. The amount of electricity produced is proportional to the intensity of the light. The photovoltaic cell is commonly used in solar panels to generate electricity from sunlight. The efficiency of the photovoltaic cell is dependent on several factors, including the type of semiconductor material used, the purity of the material, and the thickness of the cell.
The photovoltaic cell has many applications, including in solar power generation, telecommunications, and remote sensing. The technique of photovoltaic detection is an important area of research, as it has the potential to provide a clean and renewable source of energy that can help mitigate climate change.
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a question was asked by a teacher to a student. She gave the student a jumbled word and told him to make words out of it. The jumbled word is gzeysktqix. Now you know what to do. see ya!
Answers
When the teacher asked the student to make words out of the jumbled word gzeysktqix, the student was being tested on his ability to unscramble words. Unscrambling words is the process of taking a word or series of letters that are out of order and rearranging them to form a word that makes sense.
When trying to unscramble a word, it is important to look for any patterns that can help identify smaller words within the jumbled letters. This can help make the process easier and quicker. For example, in the jumbled word gzeysktqix, one might notice that the letters "sktqix" appear together.
This could indicate that these letters could potentially form a word. By looking at the remaining letters, one could notice that the letters "g", "z", "e", and "y" could also form smaller words. After some rearranging, the letters can be unscrambled to form the words "sky", "zig", "sex", and "yet". These are just a few examples, as there are likely many other words that can be formed from this jumbled word.
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