You pull a simple pendulum of length 0.240m to the side through an angle of 3.50° and release it. a) how much time does it take the pendulum bob to reach its highest speed? b) how much time does it take if the pendulum bob is released at an angle of 1.75° (instead of 3.50°)?
Answers: 1
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Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy
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Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.
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Physics, 22.06.2019 10:30
You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?
Answers: 2
You pull a simple pendulum of length 0.240m to the side through an angle of 3.50° and release it. a)...
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