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A man in a maze makes three consecutive displacements. His first displacement is 6.40 m westward, and the second is 21.0 m northward. At the end of his third displacement he is back to where he started. Find the magnitude and direction of his third displacement.
A gun shoots bullets that leave the muzzle with a speed of 336 m/s. If a bullet is to hit a target 136 m away at the level of the muzzle, the gun has to be aimed at a point above the target. How far above the target is this point.
What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to four times the Earth's radius before coming to rest momentarily
A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 265 kg · m2, What is the new angular speed of the merry-go-round
What is this value? In this state, the interference pattern still appears showing that each individual electron can interfere with itself.
A wooden raft has a mass of 45 kg. When empty it floats in water (density 1000 kg/m3) with 68% of its volume submerged. What mass of sand could be put on the raft without it sinking.
suppose an electric motor continuously operating with average power 4.65 kW runs the pump. Find its efficiency.
The equation of a transverse wave traveling along a very long string is given by y = 6.9 sin(0.025(pi)x + 4.5(pi)t), Determine the transverse displacement
Suppose the highway is icy and the coefficient of friction between the tires and pavement is only one-third what you found in part (1). What should be the maximum speed of the car so it can round the curve safely.
A 17-cm-long microscope has an eyepiece with a focal length of 3.1cm and an objective with a focal length of 0.35cm. What is the approximate magnification
How long does it take the crate to hit the ground. suppose that the plane continues to fly with the same velocity.
A long straight metal wire of radius r1= 3.30E-2 m is bounded by a metalic cylindrical shell of inner radius r2= 1.39 E-1 m and outer radius r3= 1.84E-1 m.
Expalin how many revolutions will the car have gone through when the magnitude of its total acceleration is 2.00 m/s^2?
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