A ball rolls off a desk at a speed of 3.0 m/s and lands 0.40 seconds later.

a) how far from the base of the desk does the ball land

b) how high is the desk?

c) What is the speed of impact?

If you hold a permanent magnet the wrong way in an extremely strong magnetic f eld, its magnetization will be permanently reversed. What happens to the magnetic domains inside the permanent magnet during this process?

How many workouts per week of vigorous, continuous activity are needed to improve your cardiorespitory fitness? A. 2-3 B. 3-5 C. 4-5 D. 5-6

What does the band of stability for atomic nuclei refer to

A 2.00-kilogram object weighs 19.6 newtons on earth. if the acceleration due to gravity on mars is 3.71 meters per second2, what is the object's mass on mars

Which of the following statements is true? A. Radiant energy is the same as sound waves. B. Radiant energy is a form of potential energy only. C. Radiant energy does not serve any useful purpose. D.

In a reaction with water, a base will accept a proton from the water; therefore, the water must be acting as an acid. True or False

What are the three properties of gravity

How do matter and energy interact?

What is something that has a lot of thermal energy?

Why do we use a shunt on the galvanometer