A tennis ball is dropped from 1.59 m above the ground. It rebounds to a height of 0.921 m.
With what velocity does it hit the ground?
021 (part 2 of 3) 10.0 points
With what velocity does it leave the ground? Answer in units of m/s.
022 (part 3 of 3) 10.0 points
If the tennis ball were in contact with the ground for 0.0147 s, find the acceleration given to the tennis ball by the ground.
acceleration of gravity is 9.8 m/s . Answer in units of m.
019 10.0 points
Answer in units of m/s .
The acceleration of gravity is 9.8 m/s . (Let down be negative.)
Answer in units of m/s.
A mass m = 0.043 kg of benzene vapor (Lv = 3.94x105 J/kg) at its boiling point of 80.1°C is to be condensed by mixing with water at 32.0°C. What is the minimum mass of water required to condense all of the benzene vapor? Assume the mixing and condensation take place is a perfectly insulating container.