A scientist's curiosity is a legitimate driving force of scientific endeavor

A crate at rest applies a force of 147 newtons on the floor. If the coefficient of static friction is 0.3, what is the maximum force of friction that resists the movement of the crate?

Your brother is insisting that you'll never hear a sound produced behind a barrier wall at the end of your yard. You notice that the door within the wall is open and quickly explain to him that the sound will be able to reach you due to A.

What is the strength of the electric field ep 9.0 mm from a proton?

What type of potential energy does a roller coaster have? Explain

The position of a 55 g oscillating mass is given by x (t) = (2.0cm) cos (10t), where t is in seconds. determine the velocity at t=0.40s

Ron bicycles forward with an acceleration of 2.1 m/s2. If he is applying a forward force of 195 N, what is his mass?

Diane swim 5 kilometers against the current in the same amout of time it took her to swim 15 kilometers with the current. The rate of the current was 2 kilometers per hour. How fast would diane swim if there were no current?

A man paddles a canoe in a long, straight section of a river. The canoe moves downstream with constant speed 5 m/s relative to the water. The river has a steady current of 1 m/s relative to the bank. The man's hat falls into the river.

In an atom, almost all of the mass is concentrated in a tiny nucleus because

A truck travels down the highway at a speed of 110 km/hr. How long does the trip last if the truck covered 2200km?