A helicopter is rising with a steady velocity of 30.0m/s upwards. When it gets to a height of 50.0m it releases a test probe from one of its pontoons.

A.) What is the maximum height reached by the test probe?
B.) How long does it take for the test probe to reach the ground from its maximum height?

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3