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A grinding wheel is in the form of a uniform solid disk of radius 6.99 cm and mass 1.97 kg. It starts from rest and accelerates uniformly under the action of the constant torque of 0.609 N · m that the motor exerts on the wheel.
(a) How long does the wheel take to reach its final operating speed of
(b) Through how many revolutions does it turn while accelerating?
A 4.50 kg package slides 1.30 m down a long ramp that is inclined at 10.8° below the horizontal. Calculate the work done on the package by gravity
Sgt Jay sits in a hovercraft 35.2 m above the surface of the planet Bai. The acceleration due to gravity at the Bain surface is 5.67 m/s^(2) down. What is Jay's velocity at t = 4.32s
A hockey player got checked into the boards and was knocked unconscious. It takes 95N of force to drag the hockey player across the ice at a constant speed.
A freezer is used to freeze 1.0 Lof water completely into ice. The water and the freezer remain at aconstant temperature of T = 0°C. Determine the change in the entropy of the freezer
If a Mack truck with a mass mt = 20000 kg and a Honda Civic with a mass of mc=2000 kg have a head on collision and force upon the Mack truck is 1000 N
A coin is tossed upward with an initial speed of 7.5 m/s2, What is the total time it is in the air before returning yo it's releasing point
a pot of hot water is boiling on your stove. the pot is in the shape of a round cylinder made of aluminum which is 10
A tennis ball is served horizontally at a height of 2.40 m, 12.0 mfrom a net that is 0.900 m high. (a) If it is to clear the net byat least 0.200m, what is its minimum initial velocity? (neglect airresistance) (b) if it clears the net by 0.200m, ..
question1an airplane starting from airport a flies 300 km east then 305 km at 24.5deg west of north and after that 150
the electron gun in a color tv accelerates the electrons through about 25000 volts. estimate the force on such an
in an exciting game, a baseball player manages to slide safely into second base. the mass of the player is 80.9 kg, find the magnitude of the frictional force
Consider the RLC series circuit with a 544 ? resistor, a 773 mH inductor (with negligible resistance) and a 810 nF capacitor in series, What is the peak voltage across the capacitor at this frequency
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