Physics, 15.09.2021 14:00 densliverdensentos

A 58.0 g incoming tennis ball has a speed of 30 m/s when it is hit by a racket in the opposite direction and leaves the racket at 40 m/s. What
is the average force exerted by the racket on the ball if contact lasted
for 5.2 ms?

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 01:30

Ababy stroller is a rest on top of a hill which is 10 m high. the stroller and baby have a mass of 20 kg. what is the potential energy of the baby and stroller?

Answers: 1

Answer

Physics, 22.06.2019 08:50

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions

Answers: 3

Answer

Physics, 22.06.2019 13:00

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.

Answers: 2

Answer

Physics, 22.06.2019 13:30

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.

Answers: 2

Answer

You know the right answer?

A 58.0 g incoming tennis ball has a speed of 30 m/s when it is hit by a racket in the opposite dir...

Questions

Physics, 16.04.2021 02:30

Large radio telescopes, like the one in Arecibo, Puerto Rico, can detect extremely weak signals. Suppose one radio telescope is sensitive enough to de...