Abob of mass of 0.18 kilograms is released from a height of 45 meters above the ground level. what is the value of the kinetic energy gained by the bob at the ground level

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy

If the wavelength is tripled, while the speed of the wave is held constant, what happens to the frequency?

Which of the following describes silver? a. a material that has a high resistance and prevents charges from moving freely b. a material that has a low resistance and allows charges to move freely c. a material that has a low resistance and prevents charges from moving freely d. a material that has a high resistance and allows charges to move freely