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A disk with mass m = 6.0 kg and radius R = 0.41 m hangs from a rope attached to the ceiling. The disk spins on its axis at a distance r = 1.26 m from the rope and at a frequency f = 18.0 rev/s (with a direction shown by the arrow). 1) What is the magnitude of the angular momentum of the spinning disk? 2) What is the torque due to gravity on the disk? 3) What is the period of precession for this gyroscope?
You need to push a box across the room. which side of the box should be the side down on the floor
Imagine that the coefficient of kinetic friction between a certain 15kg box and the floor is 0.35. How hard would you have to push on it to move it at the constant speed of 2.6m/s across the floor.
A dolphin in seawater at a temperature of 25 °C makes a chirp. How much time passes before it hears an echo from the bottom of the ocean, 208 m below.
A light spring-gun projectile launcher is mounted on an 0.463 kg air track glider. What is the speed of the air-track glider after the gun is fired
A 5 kg mass attached to a horizontal spring is pulled from its equilibrium position by 4 m and let go. find is the maximum velocity of the mass
A Pyrex flask in a refrigerator at 1?C is filled to the top and holds exactly 1000 cm3 of ethyl alcohol. If the refrigerator fails, how much alcohol spills by the time the temperature reaches 28?C
Suzanne observes two light pulses to be emitted from the same location, but separated in time by 2.70 µs. How fast is Mark moving relative to Suzanne
A 10cm x 10cm x 10cm box contains 0.010 mol of nitrogen at 20 degrees Celsius. What is the rate of collisions (collisions/s) on one wall of the box
A piston cylinder contains ar at 375kPA and 20 degrees celicus. Determine the heat added and the work done, using both Air Tables and Constant specific heat
A function generator with output V(t) = 12cos(500t)V is connected with a resistor R = b15?, What is the maximum current passing through the resistor
A hydraulic ram 200mm in diameter and 1.2 m long moves wholly within a concentric cylinder 200.2mm in diameter, What is the viscous force resisting the motion when the ram moves at 120mm . s-1
The angular velocuty of the elctron in the lowest Bohr orbit of the hydrogen atom is about 4*10^16 s^-1. Determine the Larmor frequency in a field of 2 T
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