For work to be done on an object,

a. some force need only be exerted on the object.

b. the object must move some distance as a result of a force.

c. the object must move, whether or not a force is exerted on it.

d. the object must not move.

What kind of interaction would a charged rod have with a neutral styrofoam ball: A. repels it B. attracts it C. doesn't interact depends on the polarity of the charge D. none of these

Earth is slightly closer to the Sun in January than in July. How does the area swept out by Earth's orbit around the Sun during the 31 days of January compare to the area swept out during the 31 days of July? a. Both areas are the same. b.

A hypothetical planet has a mass of half that of the Earth and approximately the same radius. What is the acceleration due to gravity on the planet in terms of the acceleration on the Earth?

The specific heat capacity of iron is 440j (kgK) How much thermal energy is gained when the temeperature of 800g of iron is raised by 120 degrees C?

You want to design an oval racetrack such that 3200 lb racecars can round the turns of radius 1000 ft at 1.00 _ 102 mi/h without the aid of friction.

On a bus traveling north at 20.0m/s, a child stands up and walks towards the back of the bus at 1.3m/s. What is the child's resultant velocity?

Morris needs to build a new ramp outside of the front door of the office building. In order to do this, Morris needs wood to make the ramp, screws to hold it together, and electricity to run a saw to cut the wood. How will these materials be listed?

Why does an archeogist carry out an excavation

If you burn your hand grabbing a hot cup of coffee, what type of thermal energy transfer has taken place?

Type the correct answer in the box. Round your answer to the nearest whole number. The mass of Venus is 4.87 * 1024 kilograms, and the mass of Jupiter is 1,898 * 1024 kilograms. The mass of Jupiter is about times the mass of Venus.