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A stone thrown horizontally from the top of a 26.0-m tower hits the ground at a point 21.0 m from the base of the tower.
Find the speed at which the stone was thrown.
Find the speed of the stone just before it hits the ground.
The water was originally at 0°C. The specific heat of water = 1.00 kcal/kg×°C, The original temperature of the ice was:
In a baseball game, the catcher stops a 35 m/s pitch. How much net work is done on the baseball as it is caught? what average force did the mitt exert on the ball
A converging lens with a focal length of 6.20cm forms an image of a 3.80mm-tall real object that is to the left of the lens. Where are the object and image located
A cannon fires a cannon ball at 999.16 m/s in a straight line that passes directly over an observer's head. how far is the cannon from the observer
Two blocks (M1 = 2.75 kg and M2 = 6.49 kg) are in contact on a frictionless, horizontal tabletop. What is the contact force between the blocks
You measure an electric field of 1.32*10^6 N/C at a distance of 0.156m from a point charge. What is the magnitude of the charge
What is the magnitude of the average force required to stop 1200kg car in 9.0 if the car is traveling at 65km/h
A girl with a mass of 60kg springs from a trampoline with an initial upward velocity of 8.0 m/s. what is the maximum height that the girl (with box) reaches
Potassium iodide has an interplanar spacing of d = 0.296 nm. A monochromatic X-ray beam shows first-order diffraction maximum while the grazing angle is 7.8°. Compute the X-ray wavelength λ .
a charge q1 q is positioned on the x axis at x a. where should a charge q2 9q be placed to produce a net electric
A rifle is aimed horizontally at a target 58 away. The bullet hits the target 2.5 below the aim point. What was the bullet's flight time? What was the bullet's speed as it left the barrel?
A jet airplane flying over Chyenne, Wyoming, has an air speed of 260 m/s in a direction 5.0 degrees south of west. What is the velocity of the airplance relative to the earth
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