A student throws a long stick of length 0.11m and mass 0.5 kg intothe air in such a way that the center of the mass rises vertically. At the moment it leaves his hand the stick is horizontal and thespeed of the end of the stick is nearest to him is zero. When thecenter of mass of the stick reaches its highest point, the stick ishorizontal, and it has made 26 complete revolutions. How long did it take for the center of mass to reach its highestpoint? Assume the stick's cross sectional area and mass is uniform. The acceleration of gravity is 9.8m/s2.

How would doubling the made of an object change the objects potential energy

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Aball is thrown upward. at a height of 10 meters above the ground, the ball has a potential energy of 50 joules (with the potential energy equal to zero at ground level) and is moving upward with a kinetic energy of 50 joules. what is the maximum height h reached by the ball? consider air friction to be negligible. 1. h ≈ 10 m 2. h ≈ 50 m 3. h ≈ 30 m 4. h ≈ 40 m 5. h ≈ 20 m 003 10.0 points which of the two object shown below has the greatest kinetic energy? a m b 1 2 m v 2v 1. kinetic energies are the same. 2. a 3. b 4. unable to determine. 004 10.0 points tim, with mass 74.6 kg, climbs a gymnasium rope a distance of 3.1 m. the acceleration of gravity is 9.8 m/s 2 . how much potential energy does tim gain? answer in units of j. 005 10.0 points a car is moving at 64 miles per hour. the kinetic energy of that car is 5 × 105 j. how much energy does the same car have when it moves at 111 miles per hour? answer in units of j. 006 10.0 points an 102 kg man climbs up a 1 m high flight of stairs. the acceleration of gravity is 9.81 m/s 2 . w