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efloyd04
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since:
2017-03-22 19:27:37
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Physics, 14.09.2019 10:30
Arailroad car with a mass of 11 000 kg collides and couples with a second car of mass 19 000 kg that is initially at rest. the first car is moving with a speed of 4.5 m/s prior to...
Answers
Physics, 14.09.2019 10:30
A4000-kg truck traveling with a velocity of 20 m/s due south collides head-on with a 1350-kg car traveling with a velocity of 10 m/s due north. the two vehicles stick together afte...
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Physics, 14.09.2019 10:30
Arocket ship at rest in space gives a short blast of its engine, firing 50 kg of exhaust gas out the back end with an average velocity of 400 m/s. what is the change in momentum of...
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Physics, 14.09.2019 10:30
Roller coaster loops are rarely perfectly circular. instead, they are tightly curved at the top, where the cars are moving more slowly, and they have a gentler curve at the bottom,...
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Physics, 14.09.2019 10:30
A0.676 m long section of cable carrying current to a car starter motor makes an angle of 57.7º with the earth’s 5.29 x 10^−5t field. what is the current when the wire experiences a...
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Physics, 14.09.2019 10:30
Asprinter runs 50m. you are given a stopwatch. describe how you would measure: 1. the average speed of the sprinter over the entire 50m 2. the instantaneous speed of the spr...
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Physics, 14.09.2019 10:30
The ink drops have a mass m = 1.00×10^−11 kg each and leave the nozzle and travel horizontally toward the paper at velocity v = 23.0 m/s . the drops pass through a charging unit th...
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Physics, 14.09.2019 10:30
We attach two blocks of masses m1 = 7 kg and m2 = 7 kg to either end of a spring of spring constant k = 1 n/m and set them into oscillation. calculate the angular frequency ω of th...
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Physics, 14.09.2019 10:30
Arifle with a mass of 0.9 kg fires a bullet with a mass of 6.0 g (0.006 kg). the bullet moves with a muzzle velocity of 750 m/s after the rifle is fired a. what is the momentum of...
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Physics, 14.09.2019 10:30
Apendulum on earth has a period of 1.2 seconds. the same pendulum on mercury (dark side) has a period of 1.95 seconds. what is the free-fall acceleration of mercury (in m/s^2)...
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