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Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.70 × 106 N, one at an angle 19 degree west of north, and the other at an angle 19 degree east of north, as they pull the tanker a distance 0.630 kilometer toward the north.
Compute the total work done by the two tugboats on the supertanker?
Find the critical angle for an optical fiber whose core has n value of 1.50 and whose cladding has n value of 1.15
Two identical conducting spheres, fixed in place, attract eachother with an electrostatic force of -0.6883 N whenseparated by 50 cm, center-to-center. The spheres are thenconnected by a thin conducting wire.
three enemy spacecraft have been causing trouble in the asteroid belt. they always travel in a line evenly spaced apart
the photograph in the figure below is a short-time exposure 131 s of a juggler with two tennis balls in the air. take
An automobile of mass 1420 kilogram traveling at 20 m/s is at the foot of a hill that rises 120 meter in 2 kilometer. Obtain the average power delivered by the automobile engine
Two identical conducting spheres, fixed in place, attract each other with a force of 0.094 N when their center to center separation is 60.00 cm. What was the initial negative charge on one of the spheres
A horizontal board weighing 232.0 Nis supported at points A and B in the figure below. The plankserves as a platform for a painter, who weighs 571.0 N. Find the maximum distance D, suchthat the plank will not tip, no matter where the painter stands.(..
A 20 g bullet traveling at 300 m/s is shot into a 4.0 kg block at rest on a frictionless horizontal surface. What is the speed of the block right after shooting
A box of 10 kg is being pulled across a floor with a tension force of 50 N. Assume the box started from rest and reached a speed of 2 m/s
When you touch a friend after walking across a rug on a dry day, you typically draw a spark of about 2 mm. Estimate the potential diference between you and your friend before the spark
Two packages at UPS start sliding down the ramp. Package A has a mass of 6.50 and a coefficient of kinetic friction of 0.19. Package B has a mass of 9.50 and the coefficient of kinetic friction of 0.140. How long does it take package A to reach th..
A 56.0-kg ice skater is moving at 3.94 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. obtain the force exerted by the horizontal rope on her arms
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