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Prior to being placed in its hole, a uniform utility pole of weight 5630 N and length 9.1 m makes some nonzero angle with the vertical. A vertical cable attached a distance 2.5 m below its upper end holds it in place while its lower end rests on the ground.
Find the tension in the cable.
Find the magnitude of the force exerted by the ground on the pole.
Find the direction of the force exerted by the ground on the pole.
The free-fall acceleration on the surface of Neptune is about one and one half times that on the surface of the Earth. Find the ratio of their average densities
Suppose Fuzzy, a quantum-mechanical duck, lives in a world in which h = 2?J · s. Fuzzy has a mass of 2.25 kg, What is the minimum uncertainty in the duck's speed
A rubber ball is dropped and bounces vertically from a horizontal concrete floor. If the ball has a speed of 2.9 m/s just before striking the floor and a speed of 2.0 m/s just after bouncing
A (perfect) transformer has 20 V and 2 A in its primary coil, 200 turns in its primary circuit, and 20 in its second. How much power is in the secondary circuit
A man takes his dog out for a walk. The dog has no legs and is dragged along sidewalk on a little sled (mass of dog + sled = 13.0kg). The sidewalk exerts a frictional force of 14.0N.
Water at 20°C exits a circular tap moving straight down with a flow rate of 10.1 cm3/s. If turbulent flows are characterized by Reynolds numbers above 2300 or so, how far does the water have to fall before it becomes turbulent
A ball rolls off a table with a horizontal velocity of 5 m/s If it takes 0.6 secs for it to reach the floor A. What is the verticle componet of the balls velocity just before it hits the floor? (use g= 10 m/s^2) B. What is the horizontal componet ..
A 11.0nC point charge is at the center of a 2.50m× 2.50m × 2.50m cube. find the electric flux through the top surface of the cube
The intensity of an earthquake wave passing through the Earth is measured to be 2.5×106 at a distance of 55 from the source. At what rate did energy pass through an area of 3.0 at 1.0
A box of mass 5.4 kg is accelerated from rest by a force across a floor at a rate of 2.0 m/s2 for 9.0 s. Find the net work done on the box
Falling light. According to general relativity and the equivalence principle, light is bent by gravity. Determine the time it takes for the light to strike the ground
A man stands on a scale in an elevator that is accelerating upward. compute the magnitude of the acceleration of the elevator?
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