A 0.49 kg squirrel jumps from the ground to a tree branch that is 2.1 m high. What is the gravitational potential energy of the squirrel in the tree? Show your
work

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?