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Question: A 1.4kg block and a 2.7kg block are attached to opposite ends of a light rope. The rope hangs over a solid, frictionless pulley that is 27cm in diameter and has a mass of 0.78kg .When the blocks are released, what is the acceleration of the lighter block?
In Denver, children bring their old jack-o-lanterns to the top of a tower and compete for accuracy in hitting a target on the ground. What is the launch speed needed to hit the bulls-eye
What is the new acceleration of box
A boy tosses a ball in the vertical direction off the side of a cliff. if the initial velcoity of the ball is 15 m/s upward, determine the maximum height sb reached by the ball
An object, that is 3.25 mm high is placed 16 cm in front of a lens. The image produced by this lens appears 6.0 cm behind the object, what is the height of the image
Discuss, from a thermodynamics and physics point of view, the efficiency of electric cars where electricity is not generated from renewable sources.
A variable capacitor is connected to a battery of voltage V. The capacitor initially has a capacitance C0 and charge q0. Calculate the power supplied by the battery
What is the maximum number of lines per centimeter a diffraction grating can have and produce a complete first-order spectrum for visible light
You are traveling on a hilly road. At a particular spot, when your car is perfectly horizontal, What is the radius of the circular arc in meters
A catcher catches a 145{\rm g} baseball traveling horizontally at 32.0{\rm m}/{\rm s}. what average force did the ball exert on the catcher
An orange is thrown straight up with an intial velocity of10m/s. A small gun is positioned 1 m below the orange'sintial position. Given the intial velocity of a bullet gunfired is 30m/s. Our goal is to hit the oragne when it reachesthe highest poi..
A conducting bar with a mass of 0.155 kg and a length of 16.0 cm is suspended touching two vertical electrical contacts which form an electric circuit with a battery that has an electric potential of 8.5 V. What is the resistance R that exists in t..
The maximum gas pressure in an 8-in diameter diesel-engine cylinder is 750 psi. There are six r-9 UNC cap screws fastening the cylinder head to the engine block
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