A passenger plane is flying above the ground. Describe two components of its mechanical energy.

Imagine a gas made up entirely of negatively charged electrons. Like charges repel, so the electrons exert repulsive forces on each other.

A student forms the following hypothesis if people wear bright colors, they will be happier. What is/are the problems with this hypothesis?

Which of the phases that occur in matter is dew?

1. Calculate the mechanical advantage of a machine that has an input force of 13 N and an output force of 65 N.

Which statements describe equal-area projection? Select three options. Different types exist. Longitude lines are straight. Latitude lines meet at the poles. Land area is more accurate than on a Mercator projection.

A book falls of the table and hits the floor. Is work done? Why?

A person of 83 kg is in an elevator. If the elevator is moving at a speed of 5 m/s, what's the person's kinetic energy? Keep 4 significant figures a 1,004 J b 1,038 c 1,280 J d 980 J e 1,435 J

What two equations can be used to determine the speed of a wave

Which force has an infinite range and is always attractive?

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp