In the "uniform circular motion" lab a group of students are to spin a 500 gram mass with a constant centripetal force of 5.88 n at a radius of 17.0 cm, they are to measure the period and then increase the radius and repeat the measurement for 5 different radii. if they plot v2 vs. r what is the expected slope of the linear line that should result from their plotted data.

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?