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A rotating fan completes 1200 revolutions every minute.Consider a point at the tip of the blade. at a radius of0.15m.
a.) Through what distance does the point move in onerevolution?
b.) What is the speed of the point?
c.) What is its acceleration?
d.) What is the period of the motion?
a ball is thrown upward from the roof of a building, passes the roof going down three seconds later, how fast did the ball strike the ground
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. How many electrons are there in 4.95 liters of water
a magnetic field is present in space and is time dependent. it is given bybt sint i 7-t j 23t ka wire in the shape
determine the coefficient of static friction between a motorcycle tires and the pavement as he leans to the side in
A hockey player is standing on his skates on a frozen lake when an opposing player skates by with the puck, moving at a uniform speed of 12m/s. How long does it take to catch the opponent
A space probe enters the thin atmosphere of a planet where the speed of sound is only about 35m/s. (a) What is the probe's Mach number if its initial speed is 15,000km/h (b) What is the angle of the shock wave relative to the direction of motion?
A cannon is rigidly attached to a carriage, which can move along horizontal rails, but is connected to a post by a large spring, Find the maximum force the spring exerts on the carriage
A highway is to be built between two towns, one of which lies 42.0 km south and 76.0 km west of the other. What is the shortest length of highway that can be built between the two towns, and at what angle would this highway be directed?
A 300 DC power supply has fully charged a 15 mF capacitor. The charged capacitor is connected to a 20 mH inductor. find the magnetic energy in the inductor
A cylinder contains 2.25 mol of helium gas at 21.0°C. Assume that the helium behaves like an ideal gas. What is the average kinetic energy per molecule
A speeding motorist zooms through at 75km/h, without noticing a police car by the roadside. Calculate the speed of the police car when it catches the speeding motorist
Suppose that a simple pendulum consists of a small 58.0 g bob at the end of a cord of negligible mass. What is the pendulum's length
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