Water is heated at a rate of 10 kg/s from a temperature of 15°c to 35°c by passing it through five identical tubes, each 5.0 cm in diameter, whose surface temperature is 60.0°c. estimate (a) the steady rate of heat transfer and (b) the length of tubes needed to accomplish this task.

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little