12,725 Answered Questions for the topic physics

Physics

11/14/23

Q7 - This problem has three parts. I will list the questions for each of the three parts, and any other additional info in the "Description" below.

The pump in a water tower lifts water with a density of pw = 1.00 kg/liter from a filtered pond at the base of the tower up hT = 21 m to the top of the tower. The water begins at rest in the pond... more
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Physics

11/14/23

I don't understand how to get the answer
A quantity of steam (250 g) at 118°C is condensed, and the resulting water is frozen into ice at 0°C. How much heat was removed?
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Physics

11/14/23

I need help plz!
A car radio draws 0.35 A of current in the auto's 12-V electrical system.(a) How much electric power does the radio use?(b) What is the effective resistance of the radio?
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Physics

11/13/23

Q7 - This problem has two parts. I will type the questions for each of the two parts, and any other additional info in the "Description" below.
Boxing gloves are padded to lessen the force of a blow on both the boxer's hands and the opponent.Part a) Calculate the magnitude of the force, in newtons, exerted by a boxing glove on an... more
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Physics

11/13/23

Q7 - This problem has three parts. I will list the questions for all three parts and any additional info below in "Description".
A 500 lb steel beam is lifted up by a crane to a height of 100 ft and is held there. Part a) How much work is being done to hold the beam in place?Part b) How much work was done by the crane to... more
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Physics

11/13/23

Q7 - What is the work, in joules, done by the force?

A constant 9.4 N force pushes a small ball in the direction of the force over a distance of 5.8 m.
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Physics

11/13/23

Q7 - This problem has four parts. I will list the questions for each of the four parts, and any other additional info in the "Description" below.
Suppose the ski patrol lowers a rescue sled carrying an injured skier, with a combined mass of 82.6 kg, down a 60.0° slope at a constant speed. The coefficient of kinetic friction between the sled... more
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Physics

11/13/23

Type your answer with numbers only, units are already included for you. Round to the tenths place.

A triceratops (Sara), when running, has a velocity of 3.8 m/sec. After a short dash for 3.6 seconds, she makes impact with an ankylosaurus (Tank) with a force of 435 N. How much work did Sara... more
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Physics

11/13/23

Q7 - This problem has two parts. I will list the questions for both parts and any additional info in the "Description" below.
Suppose a 77.5 kg sprinter accelerates from rest to 8.5 m/s in 3.15 s.Part a) What is the power output, in watts, of the sprinter?Part b) What is the power output, in horsepower, of the sprinter?
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Physics

11/13/23

Q7 - This problem has three parts. I will list the question for each of the three parts as well as any other additional info below in "Description".
The speed of a box traveling on a horizontal frictional surface changes from vi = 16 m/s to vf = 11 m/s in a distance of d = 9.5 m. Part a) How long in seconds did it take for the box to slow by... more
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Physics Math Calculus

11/12/23

A stone is thrown straight up from the edge of a roof, 625 feet above the ground, at a speed of 10 feet per second.
At what time does the stone hit the ground? What is the velocity of the stone when it hits the ground?
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Physics Math Calculus

11/12/23

A ball is shot from the ground straight up into the air with initial velocity of 40 ft/sec. Assuming that the air resistance can be ignored, how high does it go?
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Physics

11/11/23

Please Solve This Physics Problem
(a) Calculate the rotational kinetic energy (in J) of Venus on its axis. (Assume its mass to be 4.90 ✕ 1024 kg, the period about its axis to be 5830 h, and its diameter to be 12100 km.) (b) What is... more
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Physics Math Calculus

11/10/23

Calculus I Anti-derivatives Question A ball is shot from the ground straight up into the air with initial velocity of 49 ft/sec. Assuming that the air resistance can be ignored, how high does it go?
A ball is shot from the ground straight up into the air with initial velocity of 49 ft/sec. Assuming that the air resistance can be ignored, how high does it go? Hint:The acceleration due to... more
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Physics

11/10/23

Impulse-momentum change
Tyrone, South's 76.8-kg halfback, is moving with a speed of 6.37 m/s when he collides mid-air with New Greer Academy's middle linebacker. If Tyrone experiences a resistive force of 888 N over a... more
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Physics

11/10/23

Heat Transfer│Please Help!
A piece of hot metal (400 K) is place inside a beaker of cold water (285 K). Which of the following gives the only possible final temperatures of the metal and the water after the system reaches... more
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Physics

11/10/23

Heat Transfer│Please Help!
When 13,140 J of heat is removed from 75 grams of metal, the temperature changes from 400. K to 200. K. What is the specific heat capacity of the metal?  
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Physics

11/10/23

Heat Transfer│Please Help!
A beaker contains 25 g of liquid at 15 C. The specific heat of the liquid is 2.56 J/g°C. If the liquid absorbs 704 J of heat, what is the final temperature of the liquid? 
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Physics

11/09/23

Physics Tension Problem
Kirun is leaning a ladder (mass m = 15 kg and length L = 5.0 m) against the side of his house. An ice storm has just passed, so the ground and the side of the house are frictionless. Kirun realizes... more
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Physics

11/08/23

Solve This Physics Problem
A flywheel slows from 643 rev/min to 427 rev/min while rotating through 53 revolutions. (a) What is the angular acceleration (in rad/s^2) of the flywheel? (Assume the flywheel is rotating in the... more
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Physics

11/08/23

Plssssssss help, so sorry for the trouble

Link to image of the problem
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Physics Math Science Biology

11/08/23

Electric Potential and Energy Storage

The plates of a certain parallel-plate capacitor have been set with a separation of d = 4.15 mm, and each has an area of A = 50 cm2. After charging the capacitor, each plate carries a full charge... more
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Physics

11/08/23

physics math help

To separate a 0.19 C charge from another charge, 31 J of work is done. What is the electric potential energy of the charge?To separate a 0.21 C charge from another charge, 31 J of work is done.... more
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Physics

11/08/23

This problem has two parts. I will post the questions to both parts and additional info in "Description" below.
A velodrome has a banking angle of 23 degrees and a curve radius of 36.5 m. Part a) If there was no friction, what is the speed you would need to go around the corner safely?Part b) What force is... more
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Physics

11/07/23

What is the fastest safe speed around this bend?
Your 1600 kg car moves around a level curve in the road with a 50 m radius. The coefficient of static friction between the tires and the road is 0.8.
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