Which of the following is an example of work being done on an object?

A-Water in a pot changes into steam.

B-A man pushes a couch across the room.

C-A prism scatters ultraviolet light into visible light.

D-A box rests on the floor.

Two rubber bands pulling on an object cause it to accelerate at 1.2 m/s^2 ... a. What will be the object's acceleration if it is pulled by four rubber bands?. b.

When a positively charged conductor touches a neutral conductor, the neutral conductor will 1. lose protons. 2. stay neutral. 3. gain protons. 4. lose electrons. 5. gain electrons?

Use Newton's second law of motion to solve the following problems. ron bicycles forward with an acceleration of 2.1 m/s^2 if he is applying a forward force of 195N, what is his mass

Which SI unit indicates the mass on an average sized cereal box

Give three practical uses of electromagnets

A derived unit is a combination of fundamental units. Which of the following is an example of a derived unit? a) centimeter (used to measure distance) b) gram (used to measure mass) c) cubic centimeter (used to measure volume)

Technician A says that a heater core leak can be the result of the coolant wearing a hole through the core. Technician B says that a core leak can be caused by chemical action eating a hole through the core. Who is correct?

If the Coast Guard warns of a giant wave of water approaching the shore as a result of a major earthquake, they are warning of a. an aftershock. b. liquefaction. c. a tsunami. d. landslides.

What is the total number of atoms in the following formula? CaBr2 4 3 2 1

Object A with a mass of 500 kilograms hits stationary object B with a mass of 920 kilograms. If the collision is elastic, what happens after the collision? A) Both object A and object B move forward but with different velocities.