Physics, 01.07.2021 04:10, chaeyoung22
Steel wire rope is used to lift a heavy object. We use a 3.1m steel wire that
is 6.0mm in diameter and lift a 1700kg object. Then, the wire elongates
0.17m. Calculate the Young’s modulus for the rope material.
Answers: 1
Physics, 21.06.2019 21:40, 2003loganreed
Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?
Answers: 3
Physics, 22.06.2019 18:30, yuvraj2298
Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)
Answers: 2
Physics, 23.06.2019 01:00, kaziyahf2006
When solid surfaces slide over each other the kind of friction that occurs is called friction
Answers: 2
Physics, 23.06.2019 01:30, littylai5524
"if the pressure acting on an ideal gas at constant temperature is tripled, its volume isa) reduced to one-third. b) increased by a factor of three. c) increased by a factor of two. d) reduced to one-half"
Answers: 2
Steel wire rope is used to lift a heavy object. We use a 3.1m steel wire that
is 6.0mm in diameter...
Mathematics, 30.07.2020 21:01
Mathematics, 30.07.2020 21:01
Mathematics, 30.07.2020 21:01
Biology, 30.07.2020 21:01