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A uniform 2 kg cylinder of radius 0.15m is suspended by twostrings wrapped around it. As the cylinder descends, the stringsunwind from it. What is the acceleration of the center of mass of the cylinder? (Neglect the mass of thestring)
A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top. What is the final angular velocity of the top
An athlete swims the length L of a pool in a time t1 and makes the return trip to the starting poisition in a time t2. (a) If she is swimming initially in the positive x-direction, determine her average velocities symbolically in (a) the first hal..
A 115.29 g ice cube at -11°C is placed in an aluminum cup whose initial temperature is 79°C. What is the mass of the cup
An experimenter bombards a target of 54Cr with alpha particles such as 4He + 54Cr -> p+ 57Mn Suppose the incoming alpha particle has 26MeV kinetic energy in the lab, What is the kinetic energy of the detected proton
A 6.50 g bullet moving at 726 m/s strikes a 590 g wooden block at rest on a frictionless surface. What is the speed of the bullet-block center of mass
A compressed-air cylinder is known to fail if the pressue exceeds 100 atm. A cylinder that was filled to 20 atm at 22°C is stored in a warehouse. Unfortunately, the warehouse catches fire and the temperature reaches 900°C. What is the pressure ins..
A hydraulic lift is lifting a car that weighs 13 kN. The area of the piston supporting the car is A, How far must the small piston be pushed down to raise the car a distance of 1.3 cm
Two point charges of equal magnitude are 7.6 cm apart. At the midpoint of the line connecting them, their combined electric field has a magnitude of 43 N/C. Find the magnitude of the charges. (q = ? pC)
Multiple-Concept Example 11 deals with a situation that is similar, but not identical, to that here. What is the mass of the bar
A farsighted person uses glasses with a refractive power of 3.5 diopters. The glasses are worn 2.7 from his eyes. What is this person's near point when not wearing glasses
A 66-N ? m torque acts on a wheel with a moment of inertia 175 kg ? m2. If the wheel starts from rest, how long will it take the wheel to make one revolution
Pendulum bob A has half the mass of pendulum bob B. Each bob is tied to a string that is 5.1 meters long, How high do the bobs rise after the collision
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