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A simple pendulum is made from a 0.63 m long string and a small ball attached to its free end. The ball is pulled to one side through a small angle and then released fromrest. After the ball is released, how much time elapses before it attains its greatest speed?
A cylinder with a diameter of 23 cm rolls with an angular speedof 0.40 rad/s on a levelsurface. If the cylinder experiences a uniform tangentialacceleration of 0.012m/s2 without slipping until itsangular speed is 1.41 rad/s, through how many compl..
A 26.0 kg block atrest on a horizontal frictionless table is connected to the wallvia a spring with a spring constant k= 34.0 N/m. A 2.30E-2 kgbullet travelling with a speed of 5.000E+2 m/s embeds itself in the block. What is the amplitude of the ..
There are four charges, each with a magnitude of 2.0μC. Two are positive and two are negative. The charges are fixedto the corners of a 0.30 m square, one to a corner, in such a waythat the net force on any charge is directed toward the center oft..
mall candle is 37cm from a concave mirror having a radius of curvature of 22cm. What is the focal length of the mirror? Follow the sign conventions
will true moment of inertia of the dumbell system be larger or smaller than I=2MR^2M suggests? if Rm where to double by how much would the moment of inertia change
A particle accelerates uniformly from rest to a speed of 50m/s in 10 sec. It then continues its motion at a constant speed for 4 more seconds. all motion for the particle is horizontal(along the x-axis) a) Determine the instantaneous speed of the par..
Two divers jump from a 2.90 m platform. One jumps upward at 1.80 m/s, and the second steps off the platform as the first passes it on the waydown.
A closely wound circular coil with a diameter of 4.00cm has 600 turns and carries a current of 0.500 A. What is the magnetic field at the center of the coil
A student sitting on a frictionless rotating stool has rotational inertia 0.90kg?m2 about a vertical axis through her center of mass when her arms are tight to her chest. Ignoring her arm mass, what's her new rotational velocity
A football is thrown horizontally with an initial velocity of (18.9 m/s)x. Calculate the direction of the velocity with respect to the positive x-axis at this time
A small telescope has a concave mirror with a 4.00-m radius of curvature for its objective. Its eyepiece is a 4.25-cm focal length lens. What is the angle of its telescopic image?
if the coefficients of static and kinetic friction between the 20kg block a and the 100kg cart b are both essentially
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