A horizontal plank with a frictionless axis of rotation at its center has a large mass at one end and a small mass at the other end (both are the same distance from the axis). It is initially held stationary and then released from rest. As the plank rotates (and before one end hits the ground), how do the magnitude of the net torque on the plank about the axis and the magnitude of the angular velocity vary
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Physics, 21.06.2019 19:30
Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.
Answers: 3
Physics, 22.06.2019 15:30
An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?
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Physics, 22.06.2019 16:30
3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?
Answers: 2
A horizontal plank with a frictionless axis of rotation at its center has a large mass at one end an...
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