Which of the following best describes work being done by someone's arms?

a. a child building a sand castle

b. a mother holding a baby

c. a boy pushing on a tree

d. a traveler carrying luggage

The states labeled "No Voting Rights" in 1919 would have been MOST affected by which Constitutional Amendment? A) 18 B) 19 C) 25 D) 26

This part of the electromagnet spectrum produces heat and with special equipment can locate people at night. infrared waves microwaves X-rays gamma rays

The mantle in the Earth continually heats up and cools down using convection currents. a. True b. False

A car changes its velocity by 30 m/s in 5 seconds, what is the acceleration of the car?

Acceleration is best described as the rate of change in?

What is the median of 5 12 7 15 3 6 1

If you double the velocity of an object, you increase its kinetic energy by a factor of what?

2. Modern aircraft carriers use a steam powered catapult system to launch jets from a very short range. These catapults can provide a constant acceleration to bring jets up to speed in only two seconds.

Which of these best describes a situation where science is used? A. choosing a career after graduation B. brushing teeth after having dinner C. ordering food in a restaurant by looking at a menu card D.

A receiver is in a jet flying alongside another jet that is emitting 2.0 x 106 Hz radio waves. If the jets fly at 268 m/s, what is the change in frequency detected at the receiver?