Physics, 03.07.2019 09:00 toluwaez

Abullet with a mass of 4.0g and a speed of 650m/s is fired at a block of wood with a mass of 0.095kg. the block rests on a frictionless surface, and is thin enough that the bullet passes completely through it. immediately after the bullet exits the block, the speed of the block is 23m/s. (a) what is the speed of the when it exits the block? (b) is the final kinetic energy of this system equal to, less than, or greater than the initial kinetic energy? explain. (c) verify your answer to part (b) by calculating the initial and final kinetic energies of the system.

Answers: 1

Show answers

Another question on Physics

Physics, 21.06.2019 19:40

Wo audio speakers are placed on a vertical rail. speaker a is placed at head-level while speaker b is place at some variable height, \delta yδy, above speaker a. both speakers receive simultaneous input from a sine-wave generator so the speakers each produce a pure sinusoidal sound wave with a wavelength of 0.531 meters. calculate the lowest height that speaker b can be placed above speaker a to produce a minimum of sound heard by person standing \delta x = 7.86δx=7.86 meters directly in front of speaker a.

Answers: 2

Answer

Physics, 21.06.2019 22:00

Identify the forces that contribute to the centripetal force on the object in each of the following examples: a. a bicyclist moving around a flat, circular track b. a bicycle moving around a flat, circular track c. a racecar turning a corner on a steeply banked curve

Answers: 1

Answer

Physics, 23.06.2019 15:30

Acertain sound is recorded by a microphone. the same microphone then detects a second sound, which is identical to the first one except that the amplitude of the pressure fluctuations is larger. in addition to the larger amplitude, what distinguishes the second sound from the first one? it is perceived as higher in pitch. it is perceived as louder. it has a higher frequency. it has a longer wavelength.

Answers: 2

Answer

Physics, 23.06.2019 21:50

Which statement accurately describes a sample of water during parts a and c of the heating curve

Answers: 1

Answer

You know the right answer?

Abullet with a mass of 4.0g and a speed of 650m/s is fired at a block of wood with a mass of 0.095kg...

Questions