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A 2.0-kg object is at rest at the top of an inclined plane that makes an angle of 30° with the horizontal and which has a rise of 0.40 m. The 2.0-kg object begins to slide down the inclined plane, and at the bottom has a kinetic energy of 60 J. Ignore friction and use g = 10 m/s2.
How much work is done by the object in sliding down the inclined plane?
Two converging lenses with focal lengths of f1 = 2.00 cm and f2 = 5.00 cm are situated 14.0 cm apart on a long optics bench. determine Is the final image real or virtual
A motorcyclist is traveling along a road. He sees another cyclist ahead and starts to accelerate for 5 seconds to pass him. What is the angular displacement of the wheels
A wire with initial length L0 and radius r0 has measured resistance of 1.0 ohms. The wire is drawn under tensile stress to a new uniform radius of 0.25 r0. What is the new resistance of the wire
A coffee-maker (19 ?) and a toaster (13 ?) are connected in parallel to the same 120-V outlet in a kitchen. How much total power is supplied to the two appliances
Skier loses a ski at the top of a 98 m hill. The ski proceeds to glide down the hill frictionless. Illustrate what speed is the ski traveling at the bottom of the hill?
A .075 Kg toy rocket is launched straight up from the ground at 19 m/s. Calculate the power of gravity force during the first 10s
Find out the altitude of the plane
Janet has a 40% interest in the S corporation. All expenses that reduce DPGR are from wages, and all wages paid relate to DPGR. Explain how much QPAI and wages are allocated to Janet?
A flat observation screen is placed at a distance of 4.5 m from a pair of slits. The separation on the screen between the central bright fringe and the first-order bright fringe is 0.043 m. Determine the slit separation
A 15µ F capacitor is joined in series with a 35µ F capacitor and a 12 Volts battery. How much energy is stored by the second capacitor
A husband and wife take turns pulling their child in a wagon along a horizontal sidewalk. Each exerts a constant force and pulls the wagon through the same displacement. find the magnitude of the pulling force exerted by his wife
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. What is the mass of the wheel
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