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On a part-time job, you are asked to bring a cylindrical iron rod of density 7800 kg/m3, length 82.2 centimeter and diameter 3.00 centimeter from a storage room to a machinist. Estimate what the weight of the rod, w. The acceleration due to gravity, g = 9.81m/s2.
An 81.2-mH inductor and a6.22-µF capacitor are connected inseries with a generator whose frequency is 373 Hz. The rms voltage across the capacitor is2.38 V. Determine the rms voltage acrossthe inductor.
Calculate the magnetic moments that are possible for the n=3 level of Hydrogen, making use of the quantization of angular momentum. You may neglect the existence of spin. Compare this with the Bohr prediction for n=3.
a target shooting game wooden blocks are thrown into the air and shot in flight. a block of 0.8kg has a speed of 10 ms
Stephen is pushing his sister Joyce in a wheel barrow when it's stopped by a brick 7.83 cm high. What force must Stephen apply along the handles in order to just start the wheel over the brick
An archer pulls her bowstring back 0.420 m by exerting a force that increases uniformly from zero to 220 N. How much work is done in pulling the bow
A 5.60kg block hangs from a spring with spring constant 2120N/m . The block is pulled down 5.20cm from the equilibrium position, What is the total mechanical energy of the motion
A baseball and a bowling ball are both rolled off a level table at the same time. which will hit the ground first
A 20-kg block and a 10-kg ball are hung from the ceiling through a pulley as shown below, calculate the acceleration of the ball and the block
A 200-kg crate is pushed horizontally with a force of 715 N. If the coefficient of friction is 0.20, compute the acceleration of the crate.
A 5.63 kg crate slides on a horizontal surface. The coefficient of kinetic friction between the surface and the crate is 0.383. estimate the magnitude of the external force acting on the crate
If you were to build a pipe organ with open-tube pipes spanning the range of human hearing (20 Hz to 20 kHz), what would be the range of the lengths of pipes required
A uniform disk with a mass of 1.0 kg and radius of 20 cm is rotating on frictionless bearings with a rotational speed of 10 rad/s, what is the mass of the clay
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