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Once upon a time, a stunt man named Evil Knievel boasted that he would jump across the Grand Canyon on a motorcycle. (This stunt was never attempted.) The width of the Grand Canyon varies from place to place, but suppose that Mr. Knievel attempts to jump across at a point where the width is about 4.18 miles, and the two rims are at the same altitude. What minimum initial speed would be required to make it safely across the canyon? Express your answer in m/s and mph. Ignore air drag.
at a time when mining asteroids has become feasible astronauts have connected a line between their 3130-kg space tug
A small sphere with a mass of 1.0 g is suspended at the end of an insulating string of length 50 cm within a uniform horizontal electric eld of 12,000 N/C. What is the value of the charge on the small sphere
The function y(x, t) = (25.0 cm) cos(?x - 20?t), with x in meters and t in seconds, describes a wave on a taut string. What is the transverse speed for a point on the string at an instant when that point has the displacement y = +22.0 cm?
A 100-W electric-resistance heater inside the tank is energized for 10 minutes. Calculate the mass of CO2 in the tank and the temperature and pressure in the tank at the end of the 10 minutes period
Illustrate what is the magnitude of the net gravitational force on the mass at the origin due to the other two masses?
Two football players are initially 2m apart. At the same instant they accelerate towards each other, Draw a picture. Define your coordinate system
A 33.0cm focal length converging lens is 17.2cm behind a diverging lens. Parallel light strikes the diverging lens. What is the focal length of the diverging lens
A simple pendulum is 0.50m long. At t=0 it is released from rest starting at an angle of 10 degrees.Ignoring friction, what will be the angular position of the pendulum
"The Compton generator is a beautiful demonstration of the Coriolis force due to the earth's rotation,.... A narrow glass tube in the shape of a torus or ring (radius R of the ring >> radius of the tube) is filled with water, plus some dust partic..
To hoist himself into a tree, a 72.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the tree. determine the man's upward acceleration
tall corporation purchased 75 percent of light corporations voting common stock on january 1 20x2 at an amount equal to
If Superman really had x-ray vision at 0.1 nm wavelength and a 4 mm pupil diameter, at what altitude could he distinguish villains from heroes, assuming he needs to resolve points separated by 6 cm to do this?
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