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A proton moves at a speed of 1210 m/sin a direction perpendicular to a magnetic field with a magnitude of 0.74 T. What is the magnitude of the magnetic force on the proton?
A 5kg block is accelerated at 3 m/s^2 while fighting a frictional force of 25 N. What force needs to be applied to the block
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. What is the orbital period of the faster planet
A bowling ball of mass 1 kg, drops onto a spring from 0.2 meter height. The spring constant is also 1. What is the velocity when the ball hits the spring
A sample of a radioactive isotope is measured to have an activity of 237.1 mCi. how many nuclei of the isotope are there at this time
Two hockey players strike a puck of mass 0.158 kg with their sticks simultaneously, exerting forces of 1.17 103 N, directed west, and 9.90 102 N, Find the instantaneous acceleration of the puck
Point particle a with mass ma is moving in the positive x direction and collides with stationary point particle b with mass mb. Prove that it is not possible for a to “stick” to b so that both particles move together as a single object after the coll..
A short time later, all of the charge has left the capacitor and the current flowing through the inductor has reached its maximum value. What is this current
To hoist himself into a tree, a 72.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the tree. determine the man's upward acceleration
Consider a box with a lid 1.5m wide and 0.70m long. If the inside of the box is evacuated (i.e.,its pressure is zero), how much force is required to open the lid
when calculating the scalar moment magnitude we use the equation m fd.a. is the distance between the force and the
Determine the force required to push a 1000kg stoneblock up the side of the pyramid along a ramp. The ramp has anangle of 40 degrees and a coefficient of friction of 0.1 (thisrepresents a relatively slippery surface because you sprinkled lots of ..
An ideal gas at 17.8 °C and a pressure of 1.66 x 105 Pa occupies a volume of 3.22 m3. calculate How many moles of gas are present
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