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A 2.0 kg block slides on a frictionless 25o inclined plane. A force of 4.6 N acting parallel to and up the incline is applied to the block. What are the magnitude and direction of the block's acceleration.
A light string is wrapped around a 0.20-kg hollow 0.080-m-radius hoop. What is the angular acceleration of the hoop
A closed auditorium of volume 25700 m3 is filled with 2050 people at the beginning of a show, and the air in the space is at a temperature of 291 K and a pressure of 1.013·10^5 Pa. by how much would the temperature (in K) of the air rise
A tennis player standing 10.7 m from the net hits the ball at 2.50° above the horizontal. how fast was the ball moving when it left the racquet
Block A has mass 1.20 kg and Block B has mass 2.9 kg. They are forced together, compressing spring S between them how much potential energy was stored in the compressed spring
A telescope mirror has a radius of curvature of 18.0 m. It is used to take a picture of the Moon, What is the diameter of the image of the Moon produced by this mirror
A Light-Dimmer Circuit The intensity of a lightbulb with a resistance of 140 Ohms is controlled by connecting it in series with an inductor whose inductance can be varied from L=0 to L=Lmax. What is the average power dissipated in the lightbulb whe..
what is the max number of steps any worker should be allowed.
The human eye can barely detect a star whose intensity at the earth's surface is 1.6*10^-11. how many photons per second enter the eye from the star
A rotating door is made from four rectangular sections, as indicated in the drawing. The mass of each section is 80kg. A person pushes on the outer edge of one section with a force of F = 72N that is directed perpendicular to the section. Find out..
A surface encloses the charges q1=3.4uC , q2=7.0uC, and q3=-3.8uC. Find the electric flux through this surface
0.120 stone rests on a frictionless, horizontal surface. A bullet of mass 5.00 , traveling horizontally at 370 , Compute the direction of the velocity of the stone after it is struck
At the bow of a ship on a stormy sea, a crewman conducts an experiment by standing on a bathroom scale. Find the maximum downward acceleration experienced by the crewman
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