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A 77 kilogram man floats in fresh water with 3 percent of his volume above water when his lungs are empty, and 5 percent above water when his lungs are full. Determine the volume of air he inhales?
What is wind velocity
an 78-kg jogger is heading due east at a speed of 2.8 ms. a 56-kg jogger is heading 42 deg north of east at a speed of
A roller coaster car travels down a hill and is moving at 18 m/s as it passes through a section of straight, horizontal track. what is the speed of the car at the top
It has been suggested that rotating cylinders about 9.0 mi long and 6.0mi in diameter be placed in space and utilized as colonies. What angular speed should such a cylinder have so that the centripetal acceleration at its surface equals the free-fall..
A sphere completely submerged in water is tethered to the bottom with a string. What is the density of the sphere
A28.0-kg block is initially at rest on a horizontal surface. A horizontal force of76.0N is required to set the block in motion, after which a horizontal force of57.0N is required to keep the block moving with constant speed.
An astronomical telescope for hobbyists has an angular magnification of -150. The eyepiece has a focal length of 4.90 mm, About how long is the telescope
For a submarine, identify when it will have the LEAST buoyant force acting on it. Suppose that neither the volume of the submarine nor the density of the water change.
An astronaut orbiting the Earth is preparing to dock with a Westar VI satellite, Determine the speed of the satellite
A 0.50-kg object is attached to an ideal massless spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.7 m/s at the equilibrium position.
a wire of nichrome a nickel-chromium-iron alloy commonly used in heating elements is 1.5 m long and 1.8 mm2 in
in a newtons rings demonstration using 540-nm light the distance from the center of the rings to the first bright ring
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