If you want to store 160 J of energy in this spring, should you compress it or stretch it?

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

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