Calculus and Above

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A block rests on a table where the coefficients of static
A block rests on a table where the coefficients of static and kinetic friction between the table and the block, respectively, are 𝜇s and 𝜇k. The block is pulled by a rope with slowly increasing tens… read more
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A box of mass m1 = 3.90 kg on a frictionless surface is
A box of mass m1 = 3.90 kg on a frictionless surface is connected by a light cord to a hanging box of mass m2 = 2.75 kg. The pulley rotates about a frictionless axle and has a radius of 0.350 m. When … read more
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Two boxes are attached with a rope. The pulley and table top
Two boxes are attached with a rope. The pulley and table top are frictionless. Box #1 has a mass of 12kg and box #2 has a mass of 9 kg. A) What is the acceleration rate of the boxes? B) What is the ma… read more
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A 156.8 N box at rest is being pulled with a rope. Force
A 156.8 N box at rest is being pulled with a rope. Force tension is 75N and delta=25degrees. The coefficient of static friction = 1.1 and the coefficient of kinetic friction =1. I got the magnitude fo… read more
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A 156.8 N box at rest is being pulled with a rope. Force
A 156.8 N box at rest is being pulled with a rope. Force tension is 75N and delta=25degrees. The coefficient of static friction = 1.1 and the coefficient of kinetic friction =1. I got the magnitude fo… read more
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A 13 kg box is resting on a ramp where delta=30. The
A 13 kg box is resting on a ramp where delta=30. The coefficient of static friction = 0.9 and the coefficient of kinetic friction = 0.7 What is the magnitude of force normal? What is the magnitude of … read more
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I have an AP Physics question: An 11 kg box is at rest on a
I have an AP Physics question: An 11 kg box is at rest on a level floor. The coefficient of static friction = 1.5 and the coefficient of kinetic friction = 1.4 Grandma gives the box a 113 N horizontal… read more
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A mass m_1 = 6.1kg is on a horizontal frictionless surface.
A mass m_1 = 6.1kg is on a horizontal frictionless surface. It is attached to a second mass m_2 = 6.9kg which is suspended by a light rope which goes over a massless and frictionless pulley. What is t… read more
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1. Consider a metal loot crate, at the top of a frictionless
1. Consider a metal loot crate, at the top of a frictionless ramp. If the mass of the loot crate is 12.8kg and the ramp has a rise of 3m and a run of 4m, then compute the following. a) Compute the fre… read more
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A box of mass m is in equilibrium on a rough surface. The
A box of mass m is in equilibrium on a rough surface. The coefficient of static friction between the box and the surface on which it rests is \mu. The box is subject to a force of magnitude T_1 which … read more
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Doctoral Degree
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A box of mass m is in equilibrium on a rough surface which
A box of mass m is in equilibrium on a rough surface which makes an angle of \theta with the horizontal. The coefficient of static friction between the box and the surface on which it rests is \mu. Th… read more
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A block of mass 2.51kg is accelerated across a rough surface
A block of mass 2.51kg is accelerated across a rough surface by a rope passing over a pulley, as shown in the figure below. The tension in the rope is 13.7N, and the pulley is 12.9cm above the top of … read more
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A block of mass 2.51kg is accelerated across a rough surface
A block of mass 2.51kg is accelerated across a rough surface by a rope passing over a pulley, as shown in the figure below. The tension in the rope is 13.7N, and the pulley is 12.9cm above the top of … read more
Tom
Master's Degree
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A house painter uses the chair and pulley arrangement shown
A house painter uses the chair and pulley arrangement shown to lift himself up the side of a house. The painter's mass is 51.6kg and the chair's mass is 17.7kg. With what force must he pull down on th… read more
Debdatta Bhattachary
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Doctoral Degree
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A uniform solid cylinder with mass M and radius 2R rests on
A uniform solid cylinder with mass M and radius 2R rests on a horizontal tabletop. A string is attached by a yoke to a frictionless axle through the center of the cylinder so that the cylinder can rot… read more
Debdatta Bhattachary
Physics and Math tutor
Doctoral Degree
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A uniform solid cylinder with mass M and radius 2R rests on
A uniform solid cylinder with mass M and radius 2R rests on a horizontal tabletop. A string is attached by a yoke to a frictionless axle through the center of the cylinder so that the cylinder can rot… read more
Ann
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1.)A Bluray disk is orginally at rest. A mass of 0.23 kg
1.) A Bluray disk is orginally at rest. A mass of 0.23 kg is attached to the Bluray a distance of 0.1 meters from center of the Bluray. The tangential acceleration of the mass is 3.3 m/s2 and is const… read more
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Master's Degree
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Chap. 7, #10. (II) A 3800-kg open railroad car coasts along
Chap. 7, #10. (II) A 3800-kg open railroad car coasts along with a constant speed of 8.60 m/s on a level track. snow begins to fall vertically and fills the car at a rate of 3.50 kg/min. Ignoring fric… read more
akch2002
Master's Degree
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