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A hollow sphere of radius 0.35 m, with rotational inertia I = 0.022 kg m2 about a line through its center ofmass, rolls without slipping up a surface inclinedat 32° to the horizontal. Ata certain initial position, the sphere's total kinetic energyis 65 J.
a) How much of this initial kinetic energy is rotational?b) What is the speed of the center of mass of the sphere at theinitial position?Now, the sphere moves 1.0 m up the incline from its initialposition.c) What is its total kinetic energy now?d) What is the speed of its center of mass now?
Find an expression for the electric potential at the center. A proton is released from rest in a uniform electric field of magnitude 1.20×10^5 N/C. Find the speed of the proton after it has traveled.
A high pressure tank contains 1 kmol of methane at T=248.3 K and p= 139.2 bar. What is the mass density of methane at these conditions
A crankshaft with a diameter of 3.0 cm , rotating at 2500 rpm comes to a halt in 1.50 s, What is the tangential acceleration of a point on the surface of the crankshaft
A sample containing carbon, oxygen, and an unknown element isplaced in a mass spectrometer. What is the mass of the unknown element
Calculate the force on a dielectric slab inserted partly into a parallel plate capacitor with plate dimensions L and w, with a length x of the dielectric lying between the plates. Assume that the plates are isolated, so the charge ±Q on the plates..
Discover new angles with respect to the x-axis
A student sits on a rotating stool holding two 2.0-kg objects. When his arms are extended horizontally, Find the new angular speed of the student
A body cools from 50 degre celcious to 49 degree celcious in 5 seconds. Hw long would it take to cool from 40 degree celcious to 39 degree celcious.
a mass vibrates back and forth from the free end of an ideal spring of spring constant 20 nm with an amplitude of .25
Indiana Jones is pushing back a 305 kg box of treasure which slides 4.6 m down a 25° incline and kept from accelerating. What's the Force of Friction
q1. assume it takes 7.00 min to fill a 30.0-gal gasoline tank.a. calculate the rate at which the tank is filled in
An emf of 23.0 mV is induced in a505 turn coil when the current ischanging at a rate of 7.0 A/s. What is the magnetic flux through each turn of the coil
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