Physics, 31.12.2019 03:31 rex12388

Einstein and lorentz, being avid tennis players, play a fast-paced game on a court where they stand 25.0 m from each other. being very skilled players, they play without a net. the tennis ball has mass 0.0580 kg. you can ignore gravity and assume that the ball travels parallel to the ground as it travels between the two players. unless otherwise specified, all measurements are made by the two men.

part a

lorentz serves the ball at 83.0 m/s . what is the ball's kinetic energy?

part b

einstein slams a return at 1.79×108m/s. what is the ball's kinetic energy?

part c

during einstein's return of the ball in part b, a white rabbit runs beside the court in the direction from einstein to lorentz. the rabbit has a speed of 2.21×108m/s relative to the two men. what is the speed of the rabbit relative to the ball?

part d

what does the rabbit measure as the distance from einstein to lorentz?

part e

how much time does it take for the rabbit to run 25.0 m , according to the players?

part f

the white rabbit carries a pocket watch. he uses this watch to measure the time (as he sees it) for the distance from einstein to lorentz to pass by under him. what time does he measure?

Answers: 3

Show answers

Another question on Physics

Physics, 21.06.2019 21:20

The a metal retainer that keeps the rolling elements evenly spaced. n a. seal n b. separator n c. bearing n d outer race

Answers: 1

Answer

Physics, 21.06.2019 22:50

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]

Answers: 2

Answer

Physics, 22.06.2019 02:00

What is created when solids,liquids,an gases mix with one another

Answers: 1

Answer

Physics, 22.06.2019 03:40

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.

Answers: 1

Answer

You know the right answer?

Einstein and lorentz, being avid tennis players, play a fast-paced game on a court where they stand...

Questions