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A rubber ball is held 4.0 m above a concave spherical mirror with a radius of curvature of 1.5 m. At time equals zero, the ball is dropped from rest and falls along the principal axis of the mirror. How much time elapses before the ball and its image are at the same location?
A 92-kg skier is sliding down a ski slope that makes an angle of 30 degrees above the horizontal direction. what is the acceleration of the skier
How does the frequency of harmonic motion change if we take a spring of seven times the modulus, increases or decreases by a factor of how much
The water in the plumbing in a house is at a gauge pressure of 160000 Pascal. Find what force does this cause on the top of the tank inside a water heater
A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. What is the pressure at the narrow end of the segment
determine the properties required amp show your work.substance given
a cube of ice is taken from the freezer at -9.4degc and placed in a 100 g aluminum calorimeter filled with 308 g of
Three point charges are arranged on a line. q3 = + 5.00 nC and is at the origin. What is the sign and magnitude of q1 if the net force on q3 is zero
An all-electric car (not a hybrid) is designed to run from a bank of 12.0-V batteries with total energy storage of 2.10 X 10^7 J. How far can the car travel before it is "out of juice"
The force on a long wire is a maximum of 6.20 10-2 N when placed between the pole faces of a magnet. What type of magnetic pole is the top pole face
A playground merry-go-round has a radius of 4.20m and a moment of inertia of 255kg m2 and turns with negligible friction about a vertical axle through its center. What is the average power supplied by the child
Two blocks of masses m1=1 kilogram and m2 = 2 kilogram are connected by a mass less cord passing over a mass less, frictionless pulley. Find the accelerations of two masses with respect to ground
Gas is confined in a tank at a pressure of 12.6 atm and a temperature of 23.0°C. what is the pressure of the gas remaining in the tank
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