Physics, 27.06.2020 07:01, leianagaming
You need to find the moment of inertia of a large wheel about an axis through its center. The radius of the wheel and its mass are 0.320 m and 30.0 kg, respectively. You design an experiment in which you mount the wheel, using frictionless bearings, on a horizontal axis through the wheel's center. Then, you wrap a light string around the wheel and hang a 7.00-kg block from the free end of the rope. When you release the mass from rest from 2.50 m above the ground, the wheel turns as the rope unwinds and the block has a speed 5.60 m/s just before it hits the ground.
A) Use energy considerations to find the rotational kinetic energy of the wheel at the moment the block is about to hit the ground.
B) What is the mo of inertia of the wheel you found from this experiment?
C) Is it possible to build a wheel that has a moment of inertia 10 kg. m2 with the mass and the radius given above? Explain.
Answers: 3
Physics, 22.06.2019 04:40, hannah1072
How is the gravitational force related to the distance between two objects?
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Physics, 22.06.2019 20:00, teescub9738
In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will βstickβ to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm
Answers: 1
Physics, 22.06.2019 20:30, nae467
Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600
Answers: 2
You need to find the moment of inertia of a large wheel about an axis through its center. The radius...
Advanced Placement (AP), 19.11.2020 19:00