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In the diagram shown, Robert is pushing a 65.5kg wooden box up a ramp angled at 37o to the horizontal. If there is no friction involved, what force does Robert need to apply to keep the box moving at a constant speed? Assume Robert is pushing with a force directed parallel to the surface of the ramp.
What is the Normal force acting on the box from the ramp?
The next box Robert pushes up the ramp has a coefficient of kinetic friction between the box and the ramp of 0.11. The coefficient of static friction between the box and the ramp is 0.19. What force does Robert need to use to start the box moving up the ramp?
After he gets the box moving, what force does Robert need to use to accelerate the box up the ramp at 0.25m/s2?
To make an order-of-magnitude estimate of the energy level spacings in the nucleus, Calculate the energy of the ground state
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Coherent light with wavelength 606 nanometer passes through two very narrow slits, Obtain for what wavelength of light will the first-order dark fringe (the first dark fringe next to a central maximum) be observed at this same point on the screen
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Evaluate the translational speed of a cylinder when it reaches the foot of an incline 7.20 meter high. Suppose it starts from rest and rolls without slipping
A generator is made from a set of 7000 loops of area 5.00 cm2rotating at an angular frequency of 600 radians per second. Themagnetic field is created by a solenoid, completely surrounding the generator coil, and carrying a current of0.500 A.
Find the magnitude and direction of the magnetic field at point p due to two 1.50mm segments of wire (not the entire wire) that are opposite each other and each 8.00cm from p.
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