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A child of mass m is released from rest at the top of a water slide, at height h= 8.5 meter above the bottom of the slide. Assuming that the slide is frictionless because of the water on it, determine the child speed at the bottom of the slide.
Two friends hold on to a rope, one at each end, on a smooth, frictionless ice surface. What is the magnitude of the angular momentum of the system comprised of the two friends
A motorcyclist is traveling along a road and accelerates for 6.98 s to pass another cyclist. What is the angular displacement of each wheel during this time
an adventurous archaeologist crosses between two rock cliffs by slowly going hand-over-hand along a rope stretched
An object is placed 7.00 cm in front of a concave mirror. The radius of curvature of the mirror is 20.00 cm. Where is the image located? What is the magnification? Is this image real or virtual? Upright or inverted?
A 0.20 m 0.70 m 0.40 m block is suspended from a wire and is completely under water. What buoyant force acts on the block
A narrow beam of 400-keV photons is incident normally on a 2 mm iron liner. What fraction of the photons has an interaction in the liner? What thickness of Fe is needed to reduce the fraction of photons that are transmitted without interaction to 10%..
A spring-loaded toy gun is used to shoot a ball of mass straight up in the air, as shown in the figure. (Figure 1) The spring has spring constant . If the spring is compressed a distance of 25.0 centimeters from its equilibrium position and then r..
"Romeo tosses a pebble at Juliet's window to wake her. Unfortunately, Find the magnitude and direction of the pebble's velocity as it leaves Romeo'shand
a proton is placed at rest near the positive side of two oppositely charged parallel plates. there is a potential
A spaceship approaching Earth at 0.70 c fires a particle beam toward Earth, with speed 0.76 c relative to the ship
Suppose you have a gamma ray photon of wavelength 0.0001 nm that hits a muon. If the exiting gamma ray comes out at 30°, what is the wavelength of the exiting photon
Assume someone drops an apple from a vertical distance of 6.0 meters, directly above the point where the arrow hits the tree.
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