Physics, 05.08.2019 21:10 porkhappycom

A3.4 kg block with a speed of 5.7 m/s collides with a 6.8 kg block that has a speed of 3.8 m/s in the same direction. after the collision, the 6.8 kg block is observed to be traveling in the original direction with a speed of 4.8 m/s. (a) what is the velocity of the 3.4 kg block immediately after the collision? (b) by how much does the total kinetic energy of the system of two blocks change because of the collision? (c) suppose, instead, that the 6.8 kg block ends up with a speed of 7.6 m/s. what then is the change in the total kinetic energy?

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 14:00

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s

Answers: 2

Answer

Physics, 22.06.2019 19:00

If state law mandates that elevators cannot accelerate more than 2.40 m/s2 or travel faster than 14.8 m/s , what is the minimum time in which an elevator can travel the 373 m from the ground floor to the observatory floor? ?

Answers: 1

Answer

Physics, 22.06.2019 19:50

Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n → ∞ n (9.8)(45−3 xi) i = 1 δx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j

Answers: 3

Answer

Physics, 23.06.2019 00:50

Aforce of 8,480 n is applied to a cart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart? 865 kg 320 kg 12.1 kg 3.12 kg

Answers: 1

Answer

You know the right answer?

A3.4 kg block with a speed of 5.7 m/s collides with a 6.8 kg block that has a speed of 3.8 m/s in th...

Questions