An atom that changes so that it has an

electrical charge is a (n)

Which type of energy is converted into mechanical energy when a person walks? A. Electromagnetic B. Electrical C. Nuclear D. Chemical

The human body uses chemical energy in food to produce other forms of energy. What are the other forms of energy?

Calculate the angular velocity and linear velocity of both wheels assuming the larger wheel rotates at 120 revolutions per min (20RPM)

If a book is knocked off a desk that is. 75 m tall at a rate of 2.0 m/s, how far away from the desk does it fall

A skydiver jumps out of a hovering helicopter, so there is no forward velocity. Just as the skydiver steps out of the helicopter, someone who's watching starts a stopwatch. So the time is zero as the skydiver steps out of the plane.

Which will have the greatest effect on power consumption A.) add more circuit brakes and fuses B.) turn on all electric devices in a circuit C.) turn on only the electrical devices that use the most watts D.

13. Which best summarizes the change in number and size of microcontinents during the Proterozoic? a. the number of microcontinents increased and the size increased b. the number of microcontinents increased and the size decreased c.

What is the 3d model of oxygen molecule

If you need to drive from Dallas, Texas, to Salt Lake City, Utah, (about 1500 miles), and the speed limit is 60 miles per hour most of the way, what is the least amount of time you will need? A. 4 hours B. 25 hours C. 2.5 hours D. 90,000 hours

Which of the following statements about the Coriolis effect is correct? a. The Coriolis effect is not affected by wind speed. b. The Coriolis effect is weakest at the poles. c. The Coriolis effect does not affect wind direction. d.