A normal walking speed is around 2.0 m/s. how much time t does it take the box to reach this speed if it has the acceleration 5.54 m/s2 that you calculated above?

Three identical massless rods are each acted on by two or more forces, all perpendicular to the rods and all equal in magnitude (with a force of magnitude F). None of these rods is in static equilibrium.

The dean of a university located near the ocean (who was not a science major in college) proposes building an infrared telescope right on campus and operating it in a nice heated dome so that astronomers will be comfortable on cold winter nights.

What causes muscles to move?

Which of the following is not a benefit of improved cardio-respiratory fitness?

What is the mechanical advantage of the screw shown below?

What three forms of kinetic energy can a polyatomic molecule have?

A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter she deceler - ates at 2.0 m/s2. She reaches the ground with a speed of 3.0 m/s.

Why the weight of a body decreases with increases in distance from the earth's surface

On a fishing trip Justin rides in a book 12 km south. The fish aren't biting so they go for kilometers west. They then follow a school of fish 1 km north. What distance did they cover? What was their displacement?

Why is thebsun so bright and hot?