Calculate the amount of gravitational potential energy at the top of each hill
and at the bottom of each valley. be sure to convert your distance
measurements to meters. use an approximated value of 58.0 g for the mass
of the tennis ball, and 9.81 m/s2
as the acceleration due to gravity. record
your calculations in joules in the kinetic and potential energies table.

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

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?