A child sitting 1.20 m from the center of a merry-go-round moves with a speed of 1.35 m/s. (a) calculate the centripetal acceleration of the child.

Does conduction occur in a city? If yes, explain your answer.

What is a wave? Use the terms wavelength and frequency in your definition.

A 3 kg box is being pulled along a horizontal surface with a constant force. If the force stays the same but a boxed 2 kg mass is placed on top of the 3 kg box, what will happen to the motion of the stacked boxes?

As Luke rides his bike down a hill, potential energy is converted to kinetic energy. What is this an example of? A. Law of universal gravitation B. Theory of relativity C. Theory of momentum D. Law of conservation of energy

The law of reflection states that if the angle of incidence is 19 degrees, the angle of reflection is ___ degrees.

How far away is a cliff if an echo is heard 0.486 s after the original sound? Assume that sound traveled at 343 m/s on that day.

Rafael swings a baseball bat with a force of 25 N. The baseball bat exerts a force of 5 N on the baseball. What is the mechanical advantage of the baseball bat? The mechanical advantage of the baseball bat is

Minerals such as sulfur can sometimes be identified by colors, true or false.

How does the number of each type of particle in a sodium ion compare with the number of each type of particle in a sodium atom?

Calculate the work done when a 10 N force pushes against a cart 4.0 m