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A 10m long bar is attached by a hinge on a wall and held horizontal with a rope that makes an angle of 49 degrees from the bar. The bar is uniform and weighs 80N. How far from the hinge must a 10 kg mass be suspended for the tension in the rope to be 177N?
A 1900-kg car hits a parked 2200-kg car at 32 m/s and sticks to it. What is the velocity of the two cars after the collision
A rescue helicopter lifts a 84.2-kg person straight up by means of a cable. The person has an upward acceleration of 0.759 m/s2, What is the tension in the cable
assume that the positively charged particle starts at point a with an initial velocity in the positive x-direction.
An ultralight plane and pilot have a total mass of 156 kg. what is the net force acting on the plane and pilot
Several people are riding in a hot-air balloon. The combined mass of the people and balloon is 348 kg. how much mass should be dropped overboard
The mean distance between earth and the sun is 1.50 x 1011 m. determine the total power radiated by the sun
A bullet of mass m= 0.0230 kg is fired along an incline and imbeds itself quickly into a block of wood of mass M= 1.30 kg. find the speed of the bullet just before it hits the wood
A light bulb operating at 110V draws 1.82A. Determine its resistance and the amount of power it draws
consider an object which is rolling without slipping at constant speed on a level floor.a neglecting air resistance
Describe how you would construct two Guassian surfaces to calculate the electric field: one outside the cylindrical shell,and the other between the shell and the wire, to apply Gauss'Law.
A solenoid is 15 cm long and has 9000 turns. The current through the solenoid is 6A. What is the value of the magnetic field created
Calculate the rate of heat conduction through house walls that are 13.0cm thick and that have an average thermal conductivity twice that of glass wool. Assume there are no windows or doors.
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