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A crate of mass m (=30 kg) is placed at rest on a (frictionless) inclined plane, which has an angle (= 60o) above horizontal.
a) How long would it take the crate to slide 8 m down the incline?b) If the crate were kept from sliding by a rope pulling parallel to the incline, what would the size of the tension be?
Two plane mirrors stand facing each other, 2.79 m apart, and a woman stands between them. What is the position of the third closest image
electric field of a sinusoidal electromagnetic wave obeys the equation \(E=-(375V/m) sin((5.97*10^{15}rad/s)t+(1.99*10^7rad/m)x)\), What is the amplitude of the electric field of this wave
A plane flies 450 km east from city A to city B in 45.0 min and then 900 km south from city B to city C in 1.50 h. (Assume points east and points north.) what is the plane's average velocity for the total trip
Three carts of masses m1 = 4.50 kg, m2 = 12.00 kg, and m3 = 3.00 kg move on a frictionless, horizontal track with speeds of v1 = 4.50 m/s to the right, v2 = 3.00 m/s to the right, Find the final velocity of the train of three carts
A spotlight on a boat is y = 2.7 m above the water, and the light strikes the water at a point that is x = 9.4 m horizontally displaced from the spotlight (see the drawing). The depth of the water is 4.0 m. Determine the distance d, which locates the..
At the instant shown, the spring is unstretched and B is moving downward at 4 ft/s. Use conservation of energy to identify velocity of B when it has moved downward 2 ft from its current position.
Illustrate what method of ethical oversight (such as a code of ethics, an ethics advisory board, oversight by the board of directors or an ethics audit) would you suggest for Acre Woods Retirement Community as Illustrated in the case study in App..
Assume a volleyball player claims a hang time of 1.25 seconds. Then that player must be able to jump a vertical distance of what.
A hunter aims directly at a target (on the same level) 101m away. If the bullet leaves the gun at a velocity of 203m/s, by how much will it miss the target.
An unknown metal alloy is being tested to discover its thermal properties to see if it is suitable for use as a component in an aircraft wing. The alloy is formed into a bar measuring 1 meter in length, and is then heated from its starting temp. o..
A 50 newton horizontal force pushes a 10 kg mass sitting on a horizontal surface. What is the acceleration of the mass
You wish to launch a satellite that will remain above the same spot on earth's surface. calculate the radius of the circular orbit this satellite must have
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