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A uniform ladder 7.30 long weighing 435 rests with one end on the ground and the other end against a perfectly smooth vertical wall. The ladder rises at 58.5 above the horizontal floor. A 800painter finds that she can climb 2.65 up the ladder, measured along its length, before it begins to slip.
A) What force does the wall exert on the ladder?
B) Find the friction force that the floor exerts on the ladder.
C) Find the normal force that the floor exerts on the ladder.
A simple harmonic oscillator is constructed from a spring which is connected to a mass of 0.3 kg. What is the total energy of the oscillation
The maximum strength of the earth's magnetic field is about 6.9 x 10-5 T near the south magnetic pole. What is the minimum number of turns (area per turn = 0.021 m2) that the coil must have to produce an rms voltage of 170 V
A freight car with a mass of 2500 kg rolls down an inclined track through a vertical distance of 1.5m. at bottom of the incline, on a level track, the car collides and couples with the identical freight car that was at rest. What percentage of th..
A rotating wheel requires 3.03-s to rotate through 37.0 revolutions. Its angular speed at the end of the 3.03-s interval is 99.0 rad/s
A car of mass m is on a frictionless roller coaster track. How hard does the track push on the car at the top of the loop
In order better to map the surface features of the Moon, Calculate the satellite\'s kinetic energy, gravitational potential energy, and total orbital energy
A velocity selector is tuned to let charges with a speed of 325 m/s pass through. If the strength of the magnetic field is 0.250 T, what is the strength of the electric field
You hike 2/3 of the way to the top of the hill at a speed of 3.5 miles per H and run the final third at a speed of 5.6 miles per H
An unstable particle with a mass equal to 3.34 ? 10-27 kg is initially at rest. Find the masses of the fragments
Calculate your apparent weight at the top and bottom of a Ferris wheel, given that the radius of the wheel is R meters, it completes one revolution every T seconds
The plane of a 5.10cm by 9.00cm rectangular loop of wire is parallel to a 0.220T magnetic field, What is the magnetic moment of the loop
A charged particle travels undeflected through perpendicular electric and magnetic fields whose magnitudes are 5000N/C, Find the speed of the particle if it is a proton
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