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A wheel is spinning at 53 rad/s. It undergoes an angular acceleration of 44 rad/s 2 until it reaches an angular velocity of 381 rad/s.
1. Decide how long it took to spin up.
2. Decide how many revolutions it made while spinning up.
A particular motor can provide a maximum of 110.0 N • m of torque. Assuming that all of this torque is used to accelerate a solid, how long will it take for the flywheel to accelerate
Two hockey players( one of mass 10 kg, and the other of mass 15kg) are skating and collide and stick together.? the velocity of the first sketer is 10 m/s, the other is 17 m/s. what is their speed at the moment of the collision? question: is there a ..
If the RMS speed of the molecules in an ideal gas at 20 degrees C increase by a factor of 2, what is the new temperature
A thin film of material is layer on top of the glass. It has an index of refraction of 1.38. White light is incident normal to plane of film. Determine the frequency of green light in air
A lid is put on a box that is 14 cm long, 13 cm wide, and 8.0 cm tall and the box is then evacuated until its inner pressure is 7.3 104 Pa. How much force is required to lift the lid at sea level
In an amusement park ride, cars are suspended from L = 4.22 m cables attached to rotating arms at a distance of D = 6.08 m from the axis of rotation. What is the angular speed of rotation
a particle with positive charge q = 6.40 x 10-19 C moving with speed v = 8.13 x 105 m/s toward a long straight wire with current i = 229 mA, What is the magnitude of the force on the particle due to the current
a 75m-long train begins uniform acceleration from rest. the front of the train has a speed of 23 ms when it passes a
Two force act on a 5.0kg object sitting on a frictionless horizontal surface. What is the acceleration of the object
Two sounds have intensities of 2.10×10-8 and 8.70×10-4 W/m2 respectively. What is the magnitude of the sound level difference between them in dB units
What is the energy of the photon that, when absorbed by a hydrogen atom, could cause the following?
q1. a 4 kg fish swimming 3 ms swallows an absent minded 2 kg fish at rest. what is the speed of the large fish
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