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Q1. A stone has a mass of 6.0 x 10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.90. When the tire surface is rotating at the maximum speed of 15 m/s the stone flies out of tread. The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.4 N. suppose that only static friction supplies the centripetal force, and determine the radius r of the tire.
Q2. What is the acceleration experienced by the tip of the 1.20 cm long sweep second hand on the wrist watch?
Calculate the gradient of V in each region
Imagine that plane reaches the necessary takeoff velocity
A rock of mass m = 1.0 kg is tied to a string of length L = 1.9 m and is twirled in a vertical circle. The speed v of the rock is constant; that is, it is the same at the top and the bottom of the circle. If the tension in the string is zero when the..
What is force necessary on one end of apparatus in order to lift the car? How much work is done lifting the car?
A helicopter is ascending perpendicularly with a speed of 5.42 m/s. At a height of 146 m above the Earth, a package is dropped from a window. How much time does it take for package to reach the ground.
According to the Guinness Book of World Records (1990 edition, p. 169), the highest rotary speed ever attained was 2010 m/s (4500 mph). The rotating rod was 15 cm (5.9 in) long. Imagine the speed quoted is that of the end of the rod.
What is magnitude of the greatest force
If she is served 200 of coffee at 84 in a well-insulated container, how much ice at 0 should she add to obtain a final temperature of 31.
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How much charge passes during the starter motor
A 220 g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.150 s. If the total energy of the system is 3.50 J.
What is the total flux
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