When a rolling yo-yo falls to the bottom of its cord, what is its rotation as it climbs back up the cord? a. reversed rotation due to the rebound
b. reversed rotation due to inertia
c. same rotation due to the rebound
d. same rotation due to inertia

The weights of bags filled by a machine are normally distributed with a standard deviation of 0.05 kilograms and a mean that can be set by the operator. at what level should the mean weight be set if it required that only 1% of the bags weigh less than 9.5 kilograms? round the answer to 2 decimal places.

A15,000 kg rocket traveling at +230 m/s turns on its engines. over a 6.0 s period it burns 1,000 kg of fuel. an observer on the ground measures the velocity of the expelled gases to be −1,200 m/s.

Name three simple machine found in a ferris wheel