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an object weighs 15N in air and 13N when completely submergedin water. What is the volume of water displaced by the submerged object?
A screw with 25 threads per centimeter is driven 1.49 cm into its fixture in 12.4 s with a cordless electric screwdriver. What is the average angular speed of the screwdriver
A ball with a mass of 0.620kg is initially at rest. It is struck by a second ball having a mass of 0.405kg , What is the change in the total kinetic energy of the two balls
A long, thin rod (length = 4.5 m) lies along the x axis, with its midpoint at the origin. find the magnitude of the net torque applied to the rod
In a series R-L-C circuit, R= 300oms, Xc=300oms and XL=500 oms . The average power consumed in the resistor is 60.0 W. What is the power factor of the circuit
A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 108 MeV, How many nuclei are in the beam
A soap film formed in a loop of wire is, because of its weight, not exactly uniform in thickness, but wedge-shaped in cross section. By how much does the film differ in thickness over the distance
A 200 gram ball, moving at 6.0 m/s, is catching up and colliding elastically witha 600 gram ball that is moving along the same line
At a certain distance, the sound intensity level of a dog's bark is 43 dB. What is the sound intensity level of the rock concert
The speed of an alpha particle is determined to be 1.55×106 m/s. what is the magnitude of that potential
Two steel juggling balls each carry a charge of2.75 μC. There is a repulsive force between themof 1.85 N. What is the distance between the centers of the two balls?
A block is pushed up an incline. The incline creates an angle of 22.0° with the horizontal. When the block is released, it has an initial velocity of 2.75 m/s. The coefficient of kinetic friction between the block and the inclined plane is 0.450. How..
q1. an alpha particle m 6.7 acute 10-27 kg q 3.2 acute 10-19 c has a speed of 20 kms at point a and moves to point b
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