It takes 180 kj of work to accelerate a car from 21.0 m/s to 27.0 m/s. what is the car's mass?

Emma is running for the bus. She runs 100 metres in 25 seconds. Calculate her speed

According to general relativity, light : travels along a curve due to length contraction travels in a straight line travels along a curve due to uniform speed travels along a curve due to uniform gravity

You are standing on a bathroom scale in an elevator that is not moving and it reads 600N. The elevator then moves upward at a constant velocity of 3.25 m/s. what does the scale read?

Trevor lifts a 10kg box to the top of a cliff which is 20m high, in half an hour, then drops the box over the cliff. How much power did he use to lift the box?

A movie theater is 4 kilometers east and 2 kilometers south of your house. a. give the coordinates of the movie theater. your house is the origin. b. after leaving the movie theater, you drive 5 kilometers west and 3 kilometers north to restaurant.

How do you show force

If an object floats, the volume of the displaced water is equal to the volume of the portion of the object that's underwater. A. True B. False

Explain what it means to say that energy is conserved as a ball falls toward the ground.

The distinction between the sacred and profane is at the heart of all religions. True or false?

An object starts from rest and falls freely for 40. meters near the surface of planet P. If the time of fall is 4.0 seconds, what is the magnitude of the acceleration due to gravity on planet P?