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An object with a mass m have a velocity of v = 0.9c. What is the ratio of the relativistic kinetic energy relativistic and classical kinetic energy?
805-N man stands in the middle of a frozen pond of radius 9.0 m. He is unable to obtain to the other side because of a lack of friction among his shoes and the ice. To overcome this difficulty, he throws his 1.2-kg physics textbook horizontally towar..
Find the change in gravitational potential energy of a 1.8 kilogram object which is displaced vertically a distance of 2.7 meters
The electron gun in an old TV picture tube accelerates electrons between two parallel plates 1.3cm apart with a 20kV potential difference between them. What is the electric field strength between the plates
A spherical conducting shell of inner radius "a" and outer radius "b" carries a total charge of +5Q distributed on the surface of a conducting shell. Find the charge distribution on the conductor
a car travels up a hill at a constant speed of 55 kmh and returns down the hill at a constant speed of 22 kmh.
A convex lens is made of crown glass with index of refraction n=1.5296 at 480.0 nm and n=1.5203 at 656.3 nm. the radius of curvature of each face is 6.500 cm. Find the focal length of the lens at each wavelength.
A piano has been pushed to the top of the ramp at the back of a moving van. The workers think it is safe, but, as they walk away, How much time do the workers have to get to the piano
Two sound sources driven in phase by the equal amplifier are d = 4 m apart on the y axis. At a point a very large distance from the y axis, constructive interference is first heard at an angle θ1 = 0.140 rad with the x axis.
The coefficient of kinetic friction
A uniformly charged thin ring has radius 13.5cm and total charge 22.5nC. Find the speed of the electron when it reaches the center of the ring
A projectile is fired horizontally along the earth's surface. Show that to a first approximation the angular deviation from the direction of fire resulting form the Coriolis force varies linearly with time at a rate cosωθ, where ω is the angular f..
A baseball leaving the bat at 46o at a height of 1.2 meter from the ground clears a 3 meter high wall 125 meters from home plate. Estimate what is the initial velocity of the ball
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