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An 80.0 N box is pulled 19.0 m up a 30° incline by an applied force of 97 N that points upward, parallel to the incline. If the coefficient of kinetic friction between box and incline is 0.220, calculate the change in the kinetic energy of the box.
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A sled of mass m is being pulled by a constant horizontal force of magnitude F. The coefficient of kinetic friction is Uk. find the power average created by force
A ray of sunlight is passing from diamond into crown glass; the angle of incidence is 36.00°. Determine the angle between the refracted blue and red rays in the crown glass
Assume an asteroid has the shape of a sphere. A rock sitting on the surface of the asteroid has a weight of 100 newtons. What would the weight of this rock be if it were moved to a distance above the surface equal to the radius of the asteroid? How i..
What is the area of contact of each tire. find the coefficient of static friction between the car and track from these data.
Which medical diagnostic methods require using a nuclear reactor or an accelerator?
If the golf club is in contact with the ball as it is accelerated over an interval of 1.11 cm, estimate the average force exerted on the ball by the club
Suppose you have a solution that contains 0.0490 M Ca2 and 0.0940 M Ag, When the second cation just starts to precipitate, what percentage of the first cation remains in solution
A runner of mass m = 39kg and running at 3.1m/s runs as shown and jumps on the rim of a playground merry-go-round which has a moment of inertia of 372 kg•m2 and the radius of 2 meters. Assume the merry-go-round is initially at rest, what is its final..
A cube of metal has a volume of 2.00 cm3 and a mass of 6.00 g when at rest on Earth. what is its density as measured by a stationary observer
The small skydiver, weighing 50N, sinks 1.0m into the snow when her parachute does not open, Determine the work done by the snow in stopping the person
Two bullets from opposite sides collide in midair during battle. What fraction of the original kinetic energy was lost in the collision
An airplane pilot wishes to fly due west. A wind of 88.0 km/h is blowing toward the south. What is the speed of plane over the ground in km/h.
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