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Q: When the ring is right in the center, why must the sum of the forces on the ring add up to zero?
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Q: A basketball hits the outer rim of the hoop with a force of 2.5 lb at an angle of 75∘ from the…
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A: Part (a): The expression for the average density is, ρ=msunVρ=msun43πr2..............(1) Here, m is…
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Q: A Mass m 0.6 kg is released from rest at the top edge of a hemispherical bowl with radius = 1.1…
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Q: A 50-kg is held in place by two wide ribbons. The first ribbon makes a 30° angle to the left of with…
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Q: You have a summer internship at NASA and are working on plans for a new space station to be launched…
A: Given that,a hollow ring of mass M = 51500 kgradius r = 120 mIf each exerts a thrust of 135 N, then…
Q: Part (b) Find the work done, in J, by the applied force. Part (c) Find the work done, in J, by the…
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Q: The upside-down screw jack shown in Fig. often used as a foot leveler on refrigerators and other…
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Q: In the figure to the right, spherical masses are suspended from strings of negligible mass in…
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A game of billiards is being played with ball that are spherical shells of mass M and radius
R. Where should the ball contact the sharp edge of the bumper in order for there to be no
reaction force of the ball on the felt?
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- Look for center 0f mass by caIcuIus 0f a soIid uniform hemisphere 0f M as mass and R as radius with its flat side pointed towards the ground.a car has a constant acceleration , start from rest untill vf=22 m/s in 9 s , if the tire radius is 58 cm , calculate : a) The number of possible turns of the wheels during normal vehicle movement assuming no slip . b) the speed of wheels turn in ( rev/s )A basketball hits the outer rim of the hoop with a force of 2.5 lb at an angle of 75∘ from the horizontal before going in. The distance between the outer rim of the hoop and the backboard (point A) is 18 in. What is the moment/Torque created at the backboard (moment/Torque about A due to force of basketball) in units of in lb? Find Fx and FY and their direction of positive or negative (using the right hand rule)
- A 1.5 kg block resting ina rough flat surface is pulled by a string. The string makes an angle of 20 degress with the horizontal. The coefficient of static friction between the blodk and the surface is 0.35. What is the maximum tension in the string to keep the block unmoved?A spool of thread consists of a smaller cylinder of radiusR/2 in the middle and two discs of radius R fixed to its two ends.The thread is wound on the cylinder. The spool of mass m isplaced on a horizontal table, then the end of the thread is pulledin a direction shown in the figure.a) What is the angle α between the thread and the vertical ifthe center of the spool does not move neither to the left nor to theright? (Assume that the spool does not slip.)b) What is the coefficient of static friction between the spool and the table if the spool slipswhen the pulling force reaches a certain value F0?