A circuit with 1000 ohms resistance has current of 2 amps. What's the level of power? A. 1000 watts
B. 800 watts
C. 4000 watts
D. 2000 watts

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.

Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere