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1. Find (and illustrate with a sketch ) a pair of forces which is equipollent to the couple in the figure,and has one force equal to 50i N through the point (x, y) = (10, 20) cm.
2. Repeat the preceding problem with condition changed to a force of 180j N through (x, y) = (30, 40) cm.
3. Replace the 250-lb force in Figure P3.64 by an equipollent system consisting of a force at Q and a couple. Then show that both systems have the same moment about point B.
A plano convex lens of focal length 16 cm is fixed on the side of the box with convex surface outside an object is placed at 26 cm from the lens find the position of the image while (1) the box is empty (2) field with water.
A person ca throw a 1.00 Kg stone at a speed of 15.0 m/s. He moves his hand forward 0.75 m while doing so. How much work does the person do on the rock
An 7.00 foot extension cord has two 18 measure copper wires, each with a diameter of 1.400 mm. At what rate is energy delivered to the resistance in the cord when it is carrying a current of 1.00 A? W. At what rate is energy delivered to the resistan..
A 12-V battery causes a current of 0.80A through a resistor, How many joules of energy does the battery lose in a minute
an 8.70 kg block slides with an initial speed of 1.66 m/s up aramp inclined at an angle of 27.4 degree with the horizontal. find the distane the block slides before coming to rest
A rocket blasts off and moves upward with an acceleration of 11 m/s^2 until it reaches a height of 30m, What is the total duration of the rocket's flight
The surface pressure on Venus is 92.00 atm, and the acceleration due to gravity there is 0.894 g. What total inward force does the atmosphere exert on the vertical walls of the tank
a race car is approaching a jump ramp with the ramp angle at 10 degrees and 20 meters long and is 3.47 meters off the ground, what is the minimum velocity the car can go to make the jump
an object is placed 15 cm from first converging lens of focal length 10 cm.a. a second converging lens with focal
Chemical engineers often have to design their synthesis process using a vessel at high pressure. Compute the final temperature of the air after this compression
An electron with kinetic energy 4.60 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 50.0 cm. Discover the following values The speed of the electron
suppose that you want to take a photograph of yourself as you look at your image in a mirror 3.8 m away.for what
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