When an electric current flows through a wire, the current produces which of the following?

A.

a magnetic field

B.

mechanical energy

C.

a generator

D.

a motor

What hot springs in the ocean floor

Water enters the pump of a steam power plant as saturated liquid at 20 kPa at a rate of 45 kg/s and exits at MPa.

To measure velocity you must know

Two carts on an air track have the same mass and speed and are traveling towards each other. If they collide and stick together, find (a) the total momentum and (b) total kinetic energy of the system.

14. Many scientists believe that the current period of global warming is related to increased levels of

Stars set about how many minutes earlier each day? A. 8 B. 6 C. 4 D. 2

Whose atomic theory explains how atoms emit and absorb light

Closed clusters are groups of closely grouped stars that are located along the spiral disk of a galaxy. a. True b. False

Five forces are exerted on a box as follows: 10 N south 20 N north 50 N east 35 N west 15 N west. What is the resultant force?

A 1 kg particle moves upward from the origin to (23) m. Wit is work done by the force of gravity which is in - y direction s B. 19,6 D. 29.4) A.-19.6 J C. - 29.4 J