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A 1280 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1820 N crate hangs from the far end of the beam. Calculate the magnitude of the tension in the wire.
A military helicopter on a training mission is flying horizontally at a speed of 75.0 when it accidentally drops a bomb (fortunately, not armed) at an elevation of 450 .How much time is required for the bomb to reach the earth? How far does it tra..
At a certain distance from the center of the Earth, a 4.0- object has a weight of 3.0 . If the object is now moved twice as far from the Earth, by what factor does its weight change?
If the person can view the image produced by the microscope with a completely relaxed eye, and the magnification is -4825, what is the focal length of the objective
A proton is moving in an uniform electric field of part (a). At point A, the velocity of the proton is 1.90 X 104 m/s, east. What is the speed of proton at point B.
A model car is propelled by a cylinder of carbon dioxide gas. The cylinder emits gas at a speed of 4.5 g/s with an exit speed of 80.0 m/s. The car has a mass of 400 g, including the CO2 cylinder. Starting from rest, what is the car's initial accel..
If the converging lens in a slide projector has a focal length of 104.00 mm and the slide is located 109 mm from the lens, Determine the dimensions of the image of the slide
Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. The length of each rod is 0.90m, and the mass of each is 0.078 kg. One rod is held in place above the ground, while other flo..
A 25.0 g object moving to the right at 17.0 cm/s overtakes and collides elasticity with a 7.0 g object moving in the same direction at 15.0 cm/s. find the velocity of each object after the collision
A 25 kg trunk strikes the ground with a speed of 12.5m/s. if no energy is lost from air resistance, what is the height from which trunk fell.
The pressure in an automobile tire is usually quoted (in the United States) in pounds per square inch (lb/in2), What is the value of the gauge pressure in Pascals
a house is heated by 24 kq electric furnace using resistance heating if 9 J are used. How long was the furnace running in an acerage Jan day
A proton has a speed of 0.80c.Calculate the rest energy of the proton. Calculate the total energy of the proton
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