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A grandfather clock is controlled by a swinging brass pendulum that is 1.1 m long at a temperature of 25°C.
(a) What is the change in the length of the pendulum rod when the temperature drops to 0.0°C?
Consider a charged metallic spherical shell of radius a=1.75 cm.The potential at a distance of r=6.0 cm from the center of theshell is measured to be 1.5kV. What is the charge on theshell? Calculate the potential on the surface of theshell.
The temperature inside the refrigerator is 2.0 °C. It stands in a kitchen whose temperature is 22 °C, what is the entropy change of the kitchen
A hollow conducting sphere is surrounded by a large concentric, spherical, Using Gauss's Law, find the charges and the electric fields everywhere
A spring with constant k = 40 N/m is at the base of africtionless, 30.0 degree-inclined plane. how far along the incline will it travel before it stops
q1. a horizontal uniform bar of mass 2.6 kg and length 3.0 m is hung horizontally on two vertical strings. string 1 is
A carousel is initially at rest. At t=0 it is given a constant angular acceleration a=0.060 rad/s2, which increases its angular velocity for 8.0s. determine the angular velocity of the corousel
a step up transformer is connected to a generator that is delivering 141 v and 110 a. the ratio of the turns on the
The 11-kg block A and the 5-kg block B are both at a height h= 2 m above the ground when the system is released from rest.Just before hitting the ground block A is moving at a speed of3m/s. Determine (a) the amount of energy dissipated infriction by ..
What resistive force (assumed to be constant) does the wood exert on bullet? How long does it take the bullet to come to rest.
A small object is placed to the left of a convex lens and on the optical axis. What is the position of the image formed by the lens
A lady pushes down on a 35.0 kg crate (constrained to move along a horizontal floor) at an angle of 47.3 degrees to the horizontal with a force of 125N along a frictionless surface. what is the normal force of the surface on the crate
Luigi wishes to suspend a lantern of mass m between his store and a telephone pole. THe cable attached to his store makes an angle (theta) to the wall. The cable to the telephone pole is horizontal.
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