Calculus and Above

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A ball has a mass of 8kg and a velocity of 4.5 m/s [w30s].
A ball has a mass of 8kg and a velocity of 4.5 m/s [w30s]. After rolling across the floor (of negligible friction) it collided with another stationary ball of equal mass. After an elastic collision, t… read more
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A sphere of mass slides down from rest on an inclined
A sphere of mass slides down from rest on an inclined frictional surface . The coefficient of kinetic friction between the surface and the sphere is . This the sphere then collides with a stationary b… read more
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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
Ashok Kumar
Electrical Engineer
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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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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
STEM_Tutor
Doctoral Degree
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A 2500kg truck traveling at 20 m/s due East collides and
A 2500kg truck traveling at 20 m/s due East collides and sticks to a 1500kg car traveling at 40m/s due west. What is the momentum of the truck? What is the magnitude of the initial momentum of the car… read more
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1 Calculate the momentum of a 2000kg truck traveling at
1 Calculate the momentum of a 2000kg truck traveling at 60mi./h (1mi.=1609m).Calculate the momentum of a 60kg person sitting inside of the same truck. If the truckwere to stop suddenly over a time per… 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
DebdattaBhattacharya
Doctoral Degree
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Billiard ball A is moving along the +x axis with a speed of
Billiard ball A is moving along the +x axis with a speed of 2.4m/s when it strikes billiard ball B, initially at rest. As a result of the collision, ball A moves at 1.8m/s at an angle of 25° above the… 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
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A 4kg mass has an initial velocity of 5m/s. Friction slows
A 4kg mass has an initial velocity of 5m/s. Friction slows the mass to 1m/s after moving 8m. (a) How much energy was removed by friction and what was the magnitude of the frictional force. Please show… read more
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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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From a position-time graph with certain points labeled, how
Second opinion] From a position-time graph with certain points labeled, how do we know at which point the object is speeding up? and where it's slowing down? … read more
STEM_Tutor
Doctoral Degree
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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
Tom
Master's Degree
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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
R.R. Jha
Bachelor's Degree
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.) An anti- aircraft gun barrel and carriage, excluding
b.) An anti- aircraft gun barrel and carriage, excluding ammunition, together have a mass of 40,000 kg. The gun fires a shell of mass 80 kg with a velocity of 350 ms-1. The gun cylinders exert a total… read more
Ashok Kumar
Electrical Engineer
Master's Degree
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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
Mr. Gregory White
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Romeo is at x = 0 at t = 0 when he sees Juliet at x = 6m.(a)
Romeo is at x = 0 at t = 0 when he sees Juliet at x = 6m. (a) He begins to run towards her at v = 5m/s. She in turn begins to accelerate towards him at a = −2m/s2. When and where will they cross? Sket… read more
Dr Arthur Rubin
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