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Problem: As a roller coaster car crosses the top of a 60 m -diameter loop-the-loop, its apparent weight is the same as its true weight.
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Question: What is the speed of the car at the top?
A flask with a volume of 2.40L , provided with a stopcock, contains ethane gas (C2H6) at a temperature of 284 K and atmospheric pressure 1.013×105 Pa. What is the final pressure of the ethane in the flask
(a) i. Calculate the magnitude of the electric field E at the origin O due to the charge Q.
An electron with velocity 4x10^6 m/s strikes a ‘ He+ ‘ ion. Discover the n^th energy level the electron will excite to. Compute the wavelength of the light as the electron returns to ground state.
A wire with a weight per unit length of 0.075 N/m is suspended directly above a second wire. Find the distance of separation between the wires
Eyeglass lenses can be coated on the inner surfaces to reduce the reflection of stray light to the eye. If the lenses are medium flint glass of refractive index 1.62 and the coating is fluorite of refractive index 1.432,
A certain rain cloud at an altitude of 1.90 kilometer contains 3.20 x 107 kilogram of water vapor. Determine how long would it take for a 3.17-kW pump to raise the amount of water
An 8kg mass is observed traveling with a speed of .08*c. What is the relativisitic momentum
A quarterback takes the ball from the line of scrimmage, runs backwards for 9.0 yards, then runs sideways parallel to the line of scrimmage for 21.0 yards. find the magnitude of the football's resultant displacement
A 3000 Newton motorcycle moving at 12.0 m/s comes uniformly to a stop while skidding a distance of 25.0 meter. Evaluate what is the coefficient of kinetic friction
Unpolarized light passes through a vertical polarizing filter. The light then passes through a horizontal filter, which blocks all of the light; What is the transmitted intensity now
For a camera equipped with a 51-mm focal-length lens, How far is the object from the image on the film
One car has twice the mass of a second car, but only half as much kinetic energy. When both cars increase their speed by 6.0m/s, What were the original speeds of the two cars
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