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A projectile of mass 0.605 kg is shot straight up with aninitial speed of 18.3 m/s. (a) How high would itgo if there were no air resistance? (b) If theprojectile rises to a maximum height of only 7.02 m, determine the magnitude of the average force d..
Estimate the most energetic X-ray you can get from a heavy atom with Z = 86
Concrete is pumped from a cement mixer to the place it is being laid, instead of being carried in wheelbarrows. Calculate the resistance of the hose
A skier is gliding along at 4.8m/s on horizontal, frictionless snow. He suddenly starts down a 10 degree incline. His speed at the bottom is 15m/s. how long does it take him to reach the bottom
A tin can is filled with water to a depth of 38cm . A hole 20cm above the bottom of the can produces a stream of water that is directed at an angle of 30? above the horizontal
A photon of wavelength 0.50801 nm strikes a free electron that is initially at rest. What is the speed of the recoil electron after the collision
A spring has a force constant of k = 1.0 x 104 N/m. Determine how far must it be stretched for its potential energy to be 65 Joule
Find the present worth of all the costs if i - 10%. Assume all costs incurred to be at the end of the respective year.
A rock is thrown vertically upward with an initial speed of 100 ft/s. At the same instant another rock is thrown vertically downward from the top of a 280 ft cliff with an initial speed of 40 ft/s. Find the time when the rocks pass each other
Assume that at a given frequency the opacity of the stellar plasma at the surface of a given star is dominated by Thomson scattering. What percentage of the solar radius is this value
Most geologists believe that the dinosaurs became extinct 65 million years ago when a large comet or asteroid struck the earth, What percentage is the earth's speed around the sun
The tube is submerged in a large, graduated cylinder filled with water. The tube is slowly raised out of the water and the same tuning fork, vibrating with frequency fo. is held a fixed distance from the top of the tube. Determine the height h of ..
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