Show all work K 6. A helicopter blade spins at exactly 100 revolutions per minute. Its...
A helicopter blade spins at exactly 190 revolutions per minute. Its tip is 8.5 m from the center of rotation. Part (a) What is the average speed of the blade tip in the helicopter's frame of reference, in meters per second? Part (b) What is the average velocity over one revolution, in meters per second?
1. The North American and European continents are moving apart at a rate of about 3 cm/y. At this how long will it take them to drift 800km farther apart than they are at present? 2. Assume air resistance is negligible unless otherwise stated. A coin is dropped from a hot-air balloon that is 250 m above the ground and rising at 12.0 m/s upward. For the coin, find the following. a) the maximum height (in m) reached b) its...