A student pushes a 40-N block across the floor for a distance of 10 m. How much work was done to move the block? Question 3 options: 4 J 40 J 400 J 4,000 J

If a ball is thrown vertically upward with a velocity of 160 ft/s, then its height after t seconds is s = 160t - 16t^2.

Which of the following is an example of an electromagnetic wave? Sound Red light Seismic waves Ocean waves

A 150 g ball is thrown towards a wall with a speed of 6.5 m/s. If bounces off the wall with a speed of 3.5 m/s, determine the impulse provided by the wall.

Why is the moon's surface cratered, but the Earth's is not

Which of these are not mechanical waves and can be used to send a signal to astronauts on the moon? A) sound waves B) radio waves C) both sound waves and radio waves D) neither sound waves or radio waves

A machinist turns the power on to a grinding wheel, at rest, at time t = 0 s. The wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 56 rad/s.

The smallest units of matter that normally cannot be broken down are

What relationship exists between the amplitude of a wave and amount of disturbance in the water?

If the speed of the wave on the guitar string is 600 m/s. Determine the period of that wave. Show all of your work including the initial equations and include the units in your answer

A bumper car with a mass of 200 kilograms traveling at a velocity of 3.5 meters/second collides with a stationary bumper car with a mass of 250 kilograms. If the two bumper cars stick and move together at a velocity of 2.