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A grandfather clocks are powered by the descent of a 4.10 kilogram weight.
Part A. If the weight descends through a distance of 0.670 meter in 3.25 days, find how much power does it deliver to the clock?
Part B. To increase the power delivered to the clock, should the time it takes for the mass to descend be increased or decreased?
A concave lens has a focal length of -33 cm. Find the image distance and magnification that results when an object is placed 21cm in front of the lens.
a 15 m beam is supported (hinged supports) at both ends and is loades with a 50 n weight 4 m from one end and a 100 n weight 8 meters from the same end. what are the forces at the two supports
a very long uniform line of charge has charge per unit length 3.90 microcm and lies along the x-axis. a second long
When a train's velocity is 12{rm{ m/s}} eastward, raindrops that are falling vertically with respect to the earth make traces that are inclined 30.0 ^circ to vertical on windows of the train.
Pulling down on a rope, you lift a 4.49 kg bucket of water from a well with an acceleration of 1.50 m/s2. What is the tension in the rope.
A planet Z has a hole bored in it at its equator , and a shaft of light from it's star goes straight down that hole to the bottom, what is the circumference and radius of planet Z
Light passes from medium A into medium B at an angle of incidence of 44 degrees. The index of refraction for A is 1.25 times that of B. What is the angle of refraction? Express your answer using two important figures. What is the ratio of the speed o..
Block 1, with mass m1 and speed 5.0 m/s, slides along an x axis on a frictionless floor and then undergoes a one-dimensional elastic collision with stationary block 2, How far into that region do the two blocks slide
A toroidal solenoid has a mean radius of 11.0 cm and a cross-sectional area of 5.00 cm2 and is wound uniformly with 100 turns. A second coil with 500 turns is wound uniformly on top of the first. What is the mutual inductance of these coils.
The pressure of an ideal gas remains at 200 Pa while 1000 joules of heat are removed and its internal energy increases by 2000 joules. What was the change in the volume of the gas
A floating ice block is pushed through a displacement d = (24 m) - (12 m) j along a straight embankment by rushing water, How much work does the force do on the block during the displacement
A wire has a resistance of 60.0 ohms, and is bent into a squareloop with sides of length 15.0 cm. The loop is perpendicularto a magnetic field which is changing at a rate of7.000e-3 T/s. What is the current induced in thewire?
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