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A string wound around a cylinder of 10 cm radius has has a 150 gram mass attatched. When released, the mass accelerates at 500 cm/second. what is the angular acceleration?
A particle of charge +12 uC and mass 3.8 x 10^-5 kg is released from rest in a region where there is a constant electric field of +480 N/C
please include all units and conversions in calculations.over a time interval of 2.16 years the velocity of a planet
if 3.25 x 10-3 kg of gold is deposited on the negative electrode of an electrolytic cell in a period of 2.78 hours what
Two hydrogen atoms, both initially in the ground state, undergo ahead-on collision. what is the minimum speed each atom can have before the collision
A Nichrome wire is used as a heating element in a toaster. From the moment the toaster is first turned on to the moment the wire reaches it maximum temperature, What is the temperature change in the wire
A football coach in hopes of improving his kicker's performance fills a .9 kg football with helium rather than air. what change in relative weight of the football (change in weight divided by weight) is to be expected
A beam of light is incident from air on the surface of a liquid. find the critical angle for the liquid when surrounded by air
A 0.59-kg object connected to a light spring with a force constant of 24.0 N/m oscillates on a frictionless horizontal surface. Determine the maximum speed of the object
Two moles of an ideal gas undergo a reversible isothermal expansion from 3.25×10-2 to 4.59×10-2 at a temperature of 21.7. what change of entrophy delta s of the gas.
A coil is wrapped with 309 turns of wire on the perimeter of a circular frame (of radius 50cm). Each turn has same area, equal to that of the frame.
q1. a merry-go-round rotates at the rate of 0.30 revs with an 80 kg man standing at the point 2.0 m from the axis of
A block of mass m=5kg is pulled up a frictionless ramp (theta=30degrees) at constant speed v=2m/s by an unknown tension force T. At what rate is the tension force doing work
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