An object with a mass of 78 kilograms is lifted through a height of 6 meters. How much work is done? A. 47.75 J B. 4,586.4 J C. 468 J D. 764.4 J

Which best explains a difference between Einstein's general theory of relativity and his special theory of relativity? His general theory includes uniform and accelerated motion, but his special theory applies only to uniform motion.

3. If the average acceleration of a cheetah is 8 m/s, what will its velocity be after 3 seconds if it is initially walking at 1 m/s? a) 22 m/s b) 23m/s c) 24 m/s d) 25 m/s

A 20kg suitcase on a flat surface is pushed by a force of 100N downwards at an angle of 60 degrees with the horizontal. The suitcase moves along the floor. What is the normal force from the floor to the suitcase?

ou are unloading a refrigerator from a delivery van. The ramp on the van is 5.0 m long, and its top end is 1.4 m above the ground.

Which statement best explains why machines are inefficient? a. energy transfer in compound machines gives off electrical waste. b. during energy transfer in machines, some energy is always lost as heat. c.

Which newtons law is when dominos are knocking eachother down?

The divisions of time in the Geologic Time Scale represent: a) the Law of Superposition b) the results of radiometric dating c) major changes in biodiversity d) multiples of 35 million years e) all of the above

You are in a canyon and yell across. It takes 4 seconds for the echo to come back to you. How wide is the canyon?

Question 26 Unsaved What happens when you compress a gas? Question 26 options: The density increases The volume increases The pressure decreases Depends on the gas The temperature decreases

What force keeps a water spider on the surface of water