The pendulum is released from the 60o position and then strikes the initially stationary cylinder of mass m2 when oa is vertical. determine the maximum spring compression. use the values m1 = 3 kg, m2 = 2 kg, oa = 0.8 m, coefficient of restitution, e = 0.7 and k = 6 kn/ m. assume that the bar of the pendulum is light so that the mass m1 is at point a. the rubber cushion s stops the effectively concentrated pendulum just after the collision is over. neglect all friction.

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth