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A fighter pilot dives his plane toward the ground at400 m/s. He pulls out of the dive on a vertical circle. What is the minimum radius of the circle, so that the normal forceexerted on the pilot by his seat never exceeds three times his weight?
A person weighs 836 N in air and has a body fat percentage of 20.5%. What is the overall density of this person's body
A motorcycle has a constant speed of 25.0 m/s as it passes over the top of a hill whose radius of curvature is 118 m, Find the centripetal force that acts on the cycle
Romeo(77.0kg) entertains Juliet(55.0kg) by playing his guitar from the rear of heir boat at rest in still water, 2.70 m away from Juliet, How far ados the 80.0 kg boat move toward the shore it is facing
How long after the beginning of the power failure would it have taken the flywheel to stop if the power had not come back on? Explain how many revolutions would the wheel have made during this time?
a 600 ton Boeing business jet is flying at 500 mph at a constant altitude of 35,00 ft. if the jet is holding passengers as cargo amounting to a weight of 37 tons, what is the lifting force acting on the jet provided by the air?
The planet Uranus has a satellite, Ariel, which travels in an orbit of radius 1.910×108 m with a period of 2.52 days. Calculate the mass of Uranus from this information
A daring ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. What must be the horizontal distance between the saddle and limb when the ranch hand makes his move
Determine the absolute pressure at the bottom of a lake that is 50 m deep. Write yor answer correct to two decimal paces let Patm = 101,300 Pa
A 23-g lead bullet is shot with a speed of 320 m/s into a wooden wall. Assuming that 60% of the kinetic energy is absorbed by the bullet as heat (and 40% by the wall), what is the final temperature of the bullet
The Tevatron at the Fermi National Laboratory can accelerate protons to a kinetic energy of 1 TeV. In one particular experiment the kinetic energy of the protons is 650 GeV. What is the de Broglie wavelength of these protons
Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. Determine the acceleration (magnitude and direction) of the man
The box of a well-known breakfast cereal states that one ounce of the cereal contains 99 Calories. what is the heaviest barbell that could be lifted a distance of 1.6 m
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