If something is hot, does it contain heat or thermal energy?

neither

heat only

thermal energy only

either one because they are the same thing

A cart at the top of a hill is released and rolls down the hill. Which of the following describes the energy of the cartjust as it reaches the bottom of the hill?

Two objects, Object A and Object B, need to be identified. Object A's index of refraction is determined to be 1.77, and Object B's index of refraction is determined to be 1.333. Knowing this information, which of the following must be true? A.

How are types of energy in the electromagnetic spectrum defined? Question 32 options: a) By their atomic structure b) By their color c) By their amplitude d) By their speed e) By their wavelength

If your mass is 100 kg on earth, what do you weigh on the moon? a) 162 N b) 100 kg c) 981 N

Suppose wave pulses in an aquarium are produced by a mechanical motor that moves a bob up and down at the surface. The setup uses a 10-W motor and has a period of 1.9 s between bobs. How much kinetic energy is in each pulse.

The north and south poles of a magnetic field produced by an electromagnet will switch when the direction of the changes.

Mary and Chuck each pull at opposite ends of a rope. Chuck is stronger. Who will move backwards? Question 16 options: The rope will move but Mary and Chuck won't Both Mary and Chuck will move forward Chuck will move backwards Mary will move

Which class of lever has the fulcrum between the input force and the output force?

The refrigeration unit on an ice cream truck is rated at 35,500 Btu/hr. What is the amount of heat removed if is operates for 2.75 hours?

A process occurs in which a system's potential energy increases while the environment does work on the system.