Physics, 10.03.2020 18:30 kuehlthau03
Two guys who weight the same are holding onto a massless pole while standing on horizontal frictionless ice.
1)If the guy on the left starts to pull on the pole, where do they meet?
-3 m
0
+3m
Answers: 2
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Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k
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Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
Answers: 1
Physics, 22.06.2019 14:30
Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules
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At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
Answers: 1
Two guys who weight the same are holding onto a massless pole while standing on horizontal frictionl...
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