Calculus and Above

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1) According to the law of universal gravitation, when the
1) According to the law of universal gravitation, when the distance between the centers of two objects is doubled and the masses remain constant, the force between the objects is multiplied by a facto… read more
Debdatta Bhattachary
Debdatta Bhattachary
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A 4.10-kg ball, moving to the right at a velocity of +3.15
A 4.10-kg ball, moving to the right at a velocity of +3.15 m/s on a frictionless table, collides head-on with a stationary 8.80-kg ball. Find the final velocities of (a) the 4.10-kg ball and of (b) th… read more
akch2002
akch2002
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4) A spring with a spring constant of 150 N/m is compressed
4) A spring with a spring constant of 150 N/m is compressed by a distance of 5 cm. A ball of mass 0.50 kg is placed at the end of the spring, and the spring is released and collides with the ball. The… read more
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Debdatta Bhattachary
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A 1kg ball traveling along the positive x axis at 5m/s
A 1kg ball traveling along the positive x axis at 5m/s collides with a 4kg ball. How fast would the 4kg ball move after the collision if the 1kg ball slows down to 2m/s?… read more
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1 A 4kg ball rolling at 2 m/s strikes a 5kg ball at rest,
1 A 4kg ball rolling at 2 m/s strikes a 5kg ball at rest, and ends up stopping completely. Calculate the velocity and direction of the 5kg ball after the collison.#2 A man with a mass of 70 kg is ridi… read more
Debdatta Bhattachary
Debdatta Bhattachary
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A 1kg ball traveling along the positive x axis at 5m/s
A 1kg ball traveling along the positive x axis at 5m/s collides with a 4kg ball. How fast would the 4kg ball move after the collision if the 1kg ball slows down to 2m/s?… read more
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A 2.2kg mass moving at 5m/s collides with a second object,
A 2.2kg mass moving at 5m/s collides with a second object, initially at rest, and a mass of 3.5kg. After the collision, the 2.2kg mass is moving at 1.8m/s and the 3.5kg mass is moving at 1.5m/s. How m… read more
Debdatta Bhattachary
Debdatta Bhattachary
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Object A has a mass of 50kg and is moving along the +x axis
Object A has a mass of 50kg and is moving along the +x axis with a speed of 10m/s. Object B has a mass of 65kg, and is moving at 8m/s in the positive y direction. The two objects collide at the origin… read more
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Debdatta Bhattachary
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A baseball (m=0.145kg) moving with an initial velocity of
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Debdatta Bhattachary
Debdatta Bhattachary
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A ball is tossed from an upper-story window of a building.
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.15m/s at an angle of 21.1deg below the horizontal. It strikes the ground 2.70s later. a) How far h… read more
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A large stone disk is viewed from above and is initially at
A large stone disk is viewed from above and is initially at rest as seen in the figure below. The disk has a mass of 205.0 kg and a radius of 1.900 m. A constant force of 40.0 N is applied tangent to … read more
R.R. Jha
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A 180-g billiard ball is shot toward an identical ball at
A 180-g billiard ball is shot toward an identical ball at velocity vi = 6.80i m/s. The identical ball is initially at rest. After the balls hit, one of them travels with velocity v1, f = (1.70i + 2.10… read more
Debdatta Bhattachary
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I got some questions about college Trig class #1. Two
Hello, I got some questions about college Trig class #1. Two automobiles leave from the same point in Chicago at the same time and travel along straight highways that differ by 46°. If their speeds ar… read more
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Phone only(no case) mass = .175767kg; collision time = 0.01
phone only(no case) mass = .175767kg; collision time = 0.01 secondsSilicone mass = .0481942kg + .175767kg (phone without case mass); collision time = 0.05secondsHard plastic mass = .0311845kg + .17576… read more
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.) An anti- aircraft gun barrel and carriage, excluding
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akch2002
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1. Novak Djokovic can serve a tennis ball at around 210km/h.
1. Novak Djokovic can serve a tennis ball at around 210km/h. If a tennis ball has a mass of about 55g, and touches a tennis racket for approximately 0.008s, with what force does Mr. Djokovic strike th… read more
Ryan
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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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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
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