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A man pushes a 2.0 kg broom at constant speed across the floor. The broom handle makes a 50 degree angle with the floor. He pushes the broom with a 5.0 N force.
a.) Sum of the forces in the y-direction. What is the value of the normal force?
b.) Sum of the forces in the x-direction. What is the value of the frictional force opposing the motion?
c.) If the frictional force were suddenly reduced to zero, what would happen to the broom?
a plastic bad is filled with nitrogen at atmospheric pressure and 18 degrees Celciuss. Assume that the mass of the bad is negligible and take the temperature of the outside air to be 0 degree Celcius, How large a volume of nitrogen (in M^3) is requ..
A conical pendulum is formed by attaching a 50 g mass to a 2 m string. The mass swings around a horizontal circle of radius 1 m. What is the acceleration of the mass
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A carbon sample of the same size taken from a fresh piece of bone emits 16 beta emissions a minute. How long ago did the saber-tooth tiger live?
A destroyer sends a sonar pulse out to detect a submarine directly below the ship in the ocean. how deep is the submarine
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A rod of length ? with uniform charge per unit length ? , where ? > 0, is placed a distance d from the origin along the x axis, The segment is at a distance x from the origin, Determine the electric field
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Gold has one conduction electron per atom. Its density is 19.3gr/cm3,molar mass is 197 gr/mole, determine The drift speed vd of the electrons in the wire
q1. the sun falls on a concave mirror and forms an image 4.5 cm from the mirror. if an object 22 mm high is placed 12.7
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q1. the international space station orbits the earth at the average altitude of 362 km. assume that its orbit is
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