A boy slides a book across the floor, using a force of 5 N over a distance of 2

m. What is the kinetic energy of the book after he slides it? Assume there is

no friction

O A. 20 j

O B. 2.5 j

O c. 5 j

O D. 10 j

Match each characteristic with the type of wave it corresponds to. Longitudinal waves Transverse waves The direction the wave travels is parallel to the displacement of the medium. Electromagnetic waves are an example of this type of wave.

Which of the following is a reasonable criticism of the Bohr model of the atom? Select one: a. It makes no attempt to explain why the negative electron does not eventually fall into the positive nucleus. b.

A passenger on a bus moving east sees a man standing on a curb. from the passenger's perspective, the man appears to

The function of muscular system is

A tortoise is walking in the desert. It walks 6.4 meters in 4 minutes. What is its speed?

A refrigerator is a system. The energy input into the refrigerator system (in the form of electricity) is the same as the amount of energy output from the system. Which of the following best describes the energy output of the system?

A 1,120 kg car is travelling with a speed of 40 m/s. Find its energy.

3. Calculate the amount of current through a 45-watt light bulb that is connected to a 120-volt circuit in your home.

Are oranges called oranges because oranges are orange, or is orange called orange because oranges are orange?

An object at rest has no net force acting on it. a. True b. False