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A coin is placed 10.1 cm from the axis of a rotating turntable of variable speed. The coefficient of static friction between the coin and the turntable is .31. The speed of the turntable is slowly increased until the coin slides off. What is the speed ( in rpm) of the turntable when the coin slides off?
You are to drive to an interview in another town, at a distance of 200 km along a straight road from your home.The interview is at 9:15 A.M. Calculate your average speed for the entire trip
An alpha particle (a He nucleus, containing two protons and two neutrons and having a mass of 6.48×10^-27 kg) traveling horizontally at 36.4 km/s enters a uniform, What is the diameter of the path followed by this alpha particle
A 34.4-kg crate rests on a horizontal floor, and a 71.8-kg person is standing on the crate. Determine the magnitude of the normal force that the floor exerts on the crate
Two charges of equal magnitude exert an attractive force of 2.5×10-4 N on each other. If the magnitude of each charge is +3.0? C, how far apart are the charges
how fast is the mass moving when leaves the spring. Two forces, and , act at a point. has a magnitude of 9.00 and is directed at an angle of 65.0 degrees above the negative x axis in the second quadrant. has a magnitude of 6.00 and is directed at a..
suppose the memebers of an orchestra are tuning up their instruments, whats's the speed of the wave along the violin string
A 14.0-m uniform ladder weighing 510 N rests against a frictionless wall. The ladder makes a 63deg angle with the horizontal. what is the coeffecient of static friction between ladder and ground
It collides with a 10,000 kg railway car resting at the bottom of the track with its brakes off. The two cars couple together and roll up the track to a height of h. find out h.
A coil with an inductance of 16.8 H and a resistance of 5.5 ? is suddenly connected to a resistanceless battery with an ? = 194.0 V. What is the rate at which thermal energy is appearing
The magnetic flux through a loop of wire is ?B = 5.7 T · m2. what is the smallest possible value for the area of the loop
mass, 0.057 kgs, driving force F0 = 8.9 N and linewidth 48 radians/second, has its damping constant, b, changed, Determine the new damping constant,b
A 22 child slides down a 2.4 -high playground slide. She starts from rest, and her speed at the bottom is 1.9 What is the change in thermal energy of the seat of her pants
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