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The pendulum of a regulator clock consists of a mass of 120 g at the end of a (massless) wooden stick of length 44 cm.
(a) What is the total energy (kinetic plus potential) of this pendulum when oscillating with an amplitude of 4°?
(b) What is the speed of the mass when at its lowest point?
A blacksmith drops a 500 g iron horseshoe into a bucket containing 25 kg of water. what is the equilibrium temperature of the system
A mass of 210 g oscillates on a horizontal frictionless surface at a frequency of 4.0 Hz, What is the effective spring constant for this motion
The momentum of a soccer player is 100kg-m/sec and he hits a soccer ball with a mass 0.1 kg, find the speed(velocity) of the soccer ball
A small object of mass 0.0150kg & a charge of 3.1 uC hangs fromthe ceiling by a thread. A second small object, with a charge of4.2 uC, is placed 1.2m vertically below the first charge. Find a) the electric field at the position of the upper charge..
A mirror of focal length 24.2 cm creates an image with magnification %u22120.350. What is the image distance
Calculate the angular wave number and the speed of the wave.
What is the work completed by the block and tackle system?
While a woman stands with two feet on a scale, the scale reads 490 N. When she lifts one foot, scale reads more or less.
A bowling ball of mass 6.00 kg rests in a groove with smoth, perpendicular walls, inclined at angles of 30.0 degrees (theta). find the normal forces at the left and right points of contact
You have a 1.7 long copper wire. You want to make an N-turn current loop that generates a 1.6 magnetic field at the center when the current is 2.5, What will be the diameter of your coil
Some birthmarks can be removed by exposure to 585 nm laser light. Pulses are strongly absorbed by hemoglobin in the capillaries in the birthmark, What is the power of the laser pulse
An athlete crosses a 28 m-wide river by swimming perpendicular to the water current at a speed of 0.8 m/s relative to the water, How fast is the water in the river flowing with respect to the ground in m/s
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