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A farmer measures the distance around a rectangular field. The length of each long side of the rectangle is found to be 29.59 m, and the length of each short side is found to be 13.5 m. What is the total distance around the field?
A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 260 kg · m2 and is rotating at 8.0 rev/min about a frictionless vertical axle, What is the new angular speed of the merry-go-round
How much work is done by a person lifting a 2.0-kg object from the bottom of a well at a constant speed of 2.0 m/s for 5.0 s
The legend that Benjamin Franklin flew a kite as a storm approached is only a legend - he was neither stupid nor suicidal. what is the current through the water layer
Daisy throws a rock horizontally with a speed of 12 m/s from a bridge. It falls 2.28 s before reaching the water below. When the rock hits the water it is traveling with what horizontal component of the velocity.
What is the magnitude of the torque exerted by the entire flagpole at the point of contact with the building.
A bungee cord is stretched between two poles with a force of 390 N. What is the velocity of a wave on this bungee cord
The car encounters a loop of radius R = 18 m at ground level. As you will learn in the course of this problem, the initial height 54.00 m is great enough so that the car never loses contact with the track.
The low temperature in a freezer is -20 C, and the discharge temperature is 35 C. What is the maximum theoretical coefficient of performance
A 3.00 kg block starts from rest at the top of a 30° incline and slides a distance of 1.80 m down the incline in 1.30 s. Find the magnitude of the acceleration of the block
A sea-going prirate's telescope expands to a full length of 29 cm and has an objective lens with a focal length of 26.9 cm. What is the focal length of the eye piece
For a car moving at speed v, the force of air drag on the car is proportional to v^2 . Suppose the power output of the car is doubled, by what factor is the speed of the car increased
Assume that while pecking on a tree the woodpecker's head comes to a stop from an initial velocity of 0.7 m/s over a distance of 0.003 m. Evaluate the magnitude of the corresponding deceleration in units of the acceleration due to gravity g. What is ..
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