How have physicists played a role in history?

A. Physics has changed the course of the world.

B. History books are written by physicists.

C. Physicists have controlled most governments.

D. Most decisions about wars are made by physicists.

Explain when the median of a data set is a better measure of the center than the mean

A box is suspended with a series of ropes as shown below. When drawing the free body diagram, the force vector arrow for the cable marked as T should be drawn:

According to Newton's second law of motion, an object accelerates in the same direction as the force applied to it. True False

How many minutes does it take light from the sun to reach earth? (the distance from the sun to earth is 93 million mi; the speed of light = 3.00 ✕ 108 m/s.) ?

Granite is a coarse or medium-grained rock that is rich in quartz and feldspar. It is formed when bodies of magma cool and harden deep below the earth.

Consider a helium balloon on a string tied to the seat of your stationary car. The windows are closed, so there is no air motion within the car. The car begins to accelerate forward. Which way will the balloon lean, forward or backward

The force of gravity acts upon meteors from the rocky asteroid belt between mars and Jupiter. Where is the force of gravity most likely to pull these meteors

Sally turns on her cellular telephone to speak to her friend who is located thousands of miles away. Which of the following best describes how such a telephone is able to transmit and receive information? A.

Calculate the gravitational potential energy relative to the ground when an 82 kg person climbs to the top of a 2.0 m stepladder.

A rock is thrown from a cliff and hits the ground five seconds later at a distance of 50 m from the cliff how high was a cliff