Calculate the power when a force of 60 N moves an object over 0.6 Km in 20 minutes A. 100watts B. 6,000 watts C. 0.25watts D. 30 watts

The newton is a unit of Select one: a. motion. b. power. C. energy. d. force. O O O O

Suppose you want to calculate how much work it takes to lift a 160 N barbell. Besides the mass of the barbell, what other information do you need to know? *   a. the shape of the weights   b. how high the barbell is being lifted   c. the strength of the person doing the lifting   d. the volume of the barbell

15. a person holds a 50 Newton object stationary for 10 seconds, 2 meters above the floor, what is the amount of work done?

Which of the following is NOT an energy unit? (choose one best) a. watt x sec b. watts c. joules d. N x m

45.) Which of the following would describe gravitational potential energy? a. a book sitting on a shelf b. a rubber band stretched in an upward direction c. an apple sitting on the counter

Explain how you know there is work being done on an object?

3. A 10-Newton object moves to the left at 1 m/s. Its kinetic energy is approximately ____ Joules if you double the speed. a. 0.5 b. 1 c. 10 d. 20  4. Which best describes potential energy? a. Energy as heat b. stored energy c. energy that is used to do work d. energy of motion.

If you double the force and double the distance, work is increased by   A. Three times (work triples)   B. Four times.   C. Two times( work doubles)   D. work increased by 2.5 times

E2:: need help. This is all the information I was given. If I needed I would look it up online