4. Which of the following are examples of potential energy? * O A. a picture hanging on a wall and a parked car
O B. a clock hand moving and a leaf in a tree
O C. pushing a swing and vase on a table
D. None of the above

answer; i believe the correct answer is (40,000 j) good luck

a coal burning power plant

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle