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Motion in more than one directionA cartoon coyote sets out to capture the elusive road-runner by wearing a pair of ACME jet-powered roller skates, which provide a constant horizontal acceleration of 10 m/s^2. The coyote starts off at rest 100 m from the edge of a cliff at the instant the road-runner zips past him in the direction of the cliff.(a) If the road-runner moves with constant speed, what is the minimum speed the road-runner must have in order to reach the cliff before the coyote?(b) At the edge of the cliff the road-runner escapes by making a sudden turn, and the coyote continues straight off the cliff. If the cliff is 200 m above the ground, where does the coyote land, assuming that his skates remain horizontal and continue to work while in flight?(c) What are the components of the coyote's impact velocity?
Two wheels can rotate freely about fixed axles through their centers. The wheels have the same mass, but one has twice the radius of the other. Compare the magnitudes of the two forces
The Hoover Dam is 220 meters high and the pressure at the bottom of the dam is 2.2 million Pascals. What is the pressure at 55 meters from the surface in million Pascals
A jet plane is flying with a constant speed along a straight line, at an angle of 30.0? above the horizontal. The plane has a weight W? of magnitude 86,500N, What is the magnitude of the thrust force
An 81 kg person puts on a life jacket, jumps into the water, and floats. The jacket has a volume of 3.1 x 10-2 m3, What is the density of the life jacket
Two identical conducting small spheres are placed with their centers 0.395 m apart. Find the electric force exerted by one sphere on the other
A 60 (g} tennis ball with an initial speed of 32 {m/s} hits a wall and rebounds with the same speed. The figure shows the force of the wall on the ball throughout the collision.
If the lamp's 215 W output is focused on a person's shoulder, over a circular area 25.0 cm in diameter, Find the peak magnetic field strength
Light of wavelength 500 nm is incident normally on a diffraction grating. What is the number of rulings per centimeter for the grating
A particle starts from rest at x = 0 and moves for 15.7 s with an acceleration of +2.25 cm/s2. find the position of the particle at the end of this motion
The ball has a mass of 30 kg and a speed v=4m/s at the instant it is at its lowest point, 0 degrees.. Determine the tension in the cord at the instant = 25. Neglect the size of the ball. Determine the rate at which the ball's speed is decreasing at t..
The press box at a baseball park is 30 ft above the ground. A reporter in the press box looks at an angle of 18 degrees below the horizontal to see second base. What is the horizontal distance from the press box to second base.
A 7.57- g bullet is moving at 689.00 m/s as it leaves the 0.63- m-long barrel of a rifle. What is the average force on the bullet
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