A vertical spring with a spring constant of 1575 m/N is compressed 0.25 m. A 250 g ball is placed on top of the spring. a. How much work was done to compress the spring? [49J]
b. What is the maximum height the ball can attain from the level of the uncompressed
spring? [20. m]
c. What is the maximum speed of the ball? [20. sm]

2b2t

explanation:

2b2t

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j