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A garden hose is attached to a water faucet on one end and a spray nozzle on the other end. The water faucet is turned on, but the nozzle is turned off so that no water flows through the hose. The hose lies horizontally on the ground, and a stream of water sprays vertically out of a small leak to a height of 0.68 m. What is the pressure inside the hose?
Suppose you have a spherical balloon filled with air at room teperature and 1.0 atm pressure; its raidus is 12cm. what's the balloon's new radius
A football spends a total of 5 seconds in the air. It reaches a peak height of 30 meters. How long does it take to reach its peak height? The football has the range of 90 yards. What is its horizontal velocity.
Two particles with masses 2m and 5m are moving toward each other along the x axis with the same initial speed, Find the final speeds of the two particles after the collision
A resistor is connected across the terminals of a 9 V battery, which delivers 1.27E+5 J of energy to the resistor in 8.00 hours
Wonder Woman and Superman fly to an altitude of 1650 km, carrying betwen them a chest full of jewels that they intend to put into orbit around Earth. At what speed does the chest impact the surface of the water
According to highly accurate GPS-measurements , the continent of North America is drifting with a speed of 1cm/year. estimate the kinetic energy the continental US has
The telescope at Yerkes Observatory in Wisconsin has an objective whose focal length is 19.4 m. Its eyepiece has a focal length of10.0 cm. What is the angular magnification of the telescope
A 35.0-cm-diameter circular loop is rotated in a uniform electric field until the position of maximum electric flux is found. evaluate the magnitude of the electric field
A hand grenade is thrown with a speed of v0 30 m/s, and a 60 degree angle with x-axis, just prior to exploding. It breaks into two pieces of equal mass after the explosion. One piece has a final velocity of 40 m/s along x. Find the velocity of t..
Two negative, equally charged drops of water, 0.80 mm apart, exert an electrostatic force of 78.5 x 10-9 N on each other. Determine the net charge on each drop.
A 2 kg box is raised from rest a distance of 3 m by a vertical force of 110 N. Find the final kinetic energy of the box
A 7,800-kg truck runs into the rear of a 1,000-kg car that was stationary. The truck and car are locked together after the collision and move with speed 2 m/s
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