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Q. A string is wrapped around a uniform solid cylinder of radius r. The cylinder can rotate freely about its axis. The loose end of the string is attached to a block. The block and cylinder each have mass m. Note that the positive y direction is downward and counter clockwise torques are positive. Determine the magnitude alpha of the angular acceleration of the cylinder as the block descends.
Express your reply in terms of the cylinder's radius r and the magnitude of the acceleration because of gravity g.
A dentist uses a small mirror with a radius of 36 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 16 mm from the tooth, what is the magnification of an image.
A car drives north at 46 for 10 and then turns east and goes 5 at 60. At last, it goes southwest at 30 for 6.0. What is the average velocity.
What is t he steam-side coefficient
A 0.27 kg rock is thrown perpendicularly upward from the top of the cliff that is 32 m high. When it hits the ground at the base of cliff, the rock has a speed of 29 m/s. suppose that air resistance can be ignored, find out A) initial speed of the ro..
According to the law of universal gravitation, what will happen to Earth if the Sun were somehow replaced by the black hole of same mass.
An Indy car with a speed of 120km/h goes around a level, circular track with a radius of 1km. What is centripetal acceleration of the car.
What approximations or simplifying assumptions must you make in the calculations? (Note: Some of these choices are false because they are wrong physics!)
The pilot of an aircraft wishes to fly due west in a 33.10 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 190 km/h what must its speed relative to the ground be.
How long would it be on the incline before it arrives back at bottom.
how fast is the mass moving when leaves the spring. What is her velocity relative to the ice surface.
suppose that no heat is lost to the surroundings, what is the situation when termal equilibrium is reached.
If in general R were calculated as R=V/I, which curcuit arrangement in part A of experiment would have the smalles ERROR? define.
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