Explain what happens to the pitch of a cell phone ring when the amplitude of a sound wave increases. Justify your reasoning using complete sentences and key vocabular

What is acceleration

In a video game, a ball moving at 0.6 meter/second collides with a wall. After the collision, the velocity of the ball changed to - 0.4 meter/second. The collision takes 0.2 seconds to occur.

What happens to light as it moves at an angle into a medium that has a lower index of refraction? A. It speeds up, and the angle increases. B. It speeds up, and the angle decreases. C. It slows down, and the angle decreases. D.

Whats the difference between kinetic and potential energy?

Which is the most accurate statement about the observation of astronomical objects? A) it is easier to notice the motions of objects closer to us B) it is easier to notice the motions of objects farther from us C) the distance to an object does not

A lever allows a 35 N load to be lifted with a force of 7 N. What is the mechanical advantage of the lever?

A container of gas is at a pressure of 3.7 * 105 Pa How much work is done by the gas if its volume expands by 1.6 m3?

A person carries a mass of 10 kg and walks along the + x-axis for a distance of 100m with a constant velocity of 2 m/s. What is the work done by this person? A) 20 J B) None of the other choices is correct. C) 0 J D) 200 J

Uranus has more than 14 times as much mass as earth, yet the gravitational force is less. how can that be?

What is velocity-time graph?