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A coin is placed 9.0 cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on the turntable until a rate of 36 rpm is reached and the coin slides off. What is the coefficient of static friction between the coin and the turntable?
Express your answer using two significant figures.
A projectile is launched at some speed at an angle of 74 degrees and travels a range of 262 meters. The launch angle is after that changed, but the projectile is fired at the same speed as the original case and also travels the same range of 272 m..
Explain the concepts behind the gravitational constant, gc. Define the constant mathematically.
Calculate the intensity distribution
A 1.00-kg glider attached to a spring with a force constant of 25.0 N/m oscillates on a horizontal, frictionless air track. At t = 0 the glider is released from rest at x = -3.00 cm.
What is the magnitude of apparent weight of a 83-kg astronaut 3200km from the center of the Earth's Moon in a space vehicle accelerating toward the Moon at 3.8 m/s^2.
A space station, in the form of a wheel 100m in diameter, rotates to supply an "artificial gravity" of 3.7m/s2 for persons who walk around on inner wall of the outer rim. Find out the rate of rotation of the wheel (in revolutions per minute) that ..
What is the direction of proton after the collision? What is the direction of carbon atom after the collision.
How high is the sun above the horizon to a fisherman. What is the coefficient of kinetic friction between tires and pavement.
A 3.10 kg steel ball strikes a wall with a speed of 10 m/s at an angle of 60 ° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.190 s, what is the average force exerted on the ball by th..
A bead with a mass of 0.02 g and a charge of 20nC is free to slide on a vertical rod. At base of the rod is a fixed 20nC charge.
what is the total displacement of the jetliner between touchdown on the runway and coming to rest.
A certain freely falling object requires 1.10s to travel the last 32 m before it hits the ground. From what height above the ground did it fall.
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