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For two forces whose magnitude are 400 U and 300 U. find the maximum and minimum magnitudes of their vectors. What directions do the the forces F1 and F2 need to have to provide these magnitudes of the sum?
explain the magnitude of the centripetal acceleration. At what two locations on the x-axis (xpositive, xnegative) is the potential zero.
what is the horizontal distance x to the base. find the average net force exerted on him in the barrel of the cannon.
A 700 N window washer is standing on a uniform scaffold supported by a vertical rope at each end. The scaffold weighs 200 N and is 3 m long. what is the force in each rope when washer stands 1 m from one end.
A 10 g bullet traveling at 430m/s strikes a 13kg , 1.1-m-wide door at the edge opposite the hinge, What is the angular velocity of the door just after impac
A car with 66 -diameter tires accelerates uniformly from rest to 20 in 20 . How many times does each tire rotate
If Jessica can accelerate at a speed of 5-m/s^2, how long will it take for her to reach a speed of 30.0 m/s.
Compute the de Broglie wavelengths of (a) an electron, (b) a proton, and (c) a Au nucleus (A=197 g/mole) with a kinetic energy of 20 eV, and these same particles (parts d, e, & f) if they have a kinetic energy of 10 GeV. (Relativity is important f..
A 1000-kg car is moving at 30.0 m/s around a horizontal curve whose radius is 100 m. What is the magnitude of the frictional force
A 300-g block is dropped onto a vertical spring with spring constant k =180.0 N/m. The block becomes attached to the spring, what is the maximum compression of the spring
An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. calculate the moon\'s radial acceleration
A 5.0 kg box is pushed with a force of 12N across a smoothfloor for a distance of 10 meter. Calculate the total work done on the box
Jennifer, who has a mass of 50.0 kg, is riding at 35.0 m/s in her red sports car when she must suddenly slamon the brakes to avoid hitting a deer crossing the road. What average force would the windshield have exerted on her
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