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Five point masses m1 through m5 are located at the vertices and the centre (the intersection of the diagonals) of a rectangle of length 10 m and width 6 m, as shown. The point F is midway between A and C and the point E is at the intersection of the diagonals of the rectangle. Imagine the masses to be connected by thin massless rods so that the system can rotate as one unit. Find the moment of inertia of the system for rotation about an axis perpendicular to the paper and (a) passing through A (b) passing through F & (c) passing through D.
A He-Ne laser beam with an intensity of 1.00 x 103 W/m2 is incident from air to water, Find the intensity of the beam transmitted into the water
Fleas can jump quite high; experiments show that they reach an altitude of 130 times their own height when they jump vertically! Suppose instead that a flea can jump, What is the take-off speed for this flea
A 4 cm radius hose pumps out gasoline at a speed of 2 m/s in to an underground tank. what is the volume of the tank
A proton moves 1.5 centimeter parallel to a uniform electric field of E = 150 N/C. Find how much work is done by the field on the proton
you are outside tossing a football with your friends. you throw the football at an angle of 52.3deg above the
A 2.00kg block slides on a rough horizontal surface. The block hits a spring with a speed of 2.50m/s and compresses it a distance of 11.0cm before coming to rest. what is the force constant of the spring
A circular coil of radius 6.0 cm has 1500 turns and a total resistance of 0.25. Initially it is in a region with a uniform magnetic field of 0.25 T perpendicular to the coil area. Find the average emf induced in the coil
The drawing shows a uniform horizontal beam attached to avertical wall by a frictionless hinge and supported from below atan angle θ = 38o by a brace that isattached to a pin. The beam has a weight of 338 N. Three additional forces keep the beam i..
A perfectly reflecting flat mirror is uniformly illuminated by light striking it perpendicularly. Calculate the intensity of the light
An athlete swings a ball, connected to the end of a chain, in a horizontal circle. find Which rate of rotation gives the greater speed for the ball
A submarine is 309 m horizontally out from the shore and 149 m beneath the surface of the water. find the height of the building
The surface charge density on an infinite sheet is -2.0 x 10-6 coulomb. How far does the particle travel before reaching its truning point
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