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A doubly charged ion with velocity 6.6 x 10+6 m/s moves in a path of radius 32 centimeter in a magnetic field of 0.7 T in a mass spectrometer. Find what is the mass of this ion?
kg
A boy of mass 37.9 kilogram jumps off a diving platform 1.61 meter high. Find the magnitude of the resistive force of the water on the boy
A 7320 kg satellite has an elliptical orbit. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. Find the work done by the gravitational force when the satellite moves from the ap..
q1. a 1190-n uniform beam is attached to the vertical wall at one end and is supported by a cable at the other end. a
A 1382-kg car is moving westward with a speed of 21.1 m/s, Find the velocity of the center of mass of the car-truck system
Two cars with equal mass collide head on. One car is going 18 mph. That car is push backward about 38 feet. What is the speed of other vehicle.
A 6100 kg rocket is set for vertical firing from the Earth's surface. The exhaust speed is 1400 m/s. How much gas must be ejected each second if the thrust is to equal the weight of the rocket
A specimen of oil having an initial volume of 600cm3 is subjected to a pressure increase of3.6×106Pa, What is the bulk modulus (in Pa) of the material
Two children, Mary and Kate, are riding on a merry-go-round. Mary is at a greater distance from the axis of rotation than Kate. Which child has the larger angular speed? Tangential speed? Centripetal acceleration?
Consider a small, conducting sphere of 0.0010 kg mass. Extra electrons are placed on this sphere, How many electrons must be added to each sphere
A violin string vibrates at 294 Hz whenunfingered. At what frequency will it vibrate if it is fingeredone third of the way down from the end
Tom is driving at 45mph toward a grade crossing, and he is at 800ft from the garde crossing. There is no gate at this grade. Tom make a decisoin to try to beat an upcoming train, which is at 1000ft from the crossing and moving at 40mph when Tom se..
a very long cylinder of charge has a radius r and charge density pcr2 where c is a constant.a. if the total charge on a
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