Finding out the moment of inertia of the pulley
A 2.50 kg mass is attached to a light cord that is wrapped around a pulley of radius 3.45 cm, which turns with negligible friction. The mass falls at a constant acceleration of 3.85 m/s2. Find the moment of inertia of the pulley.
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Ignore any friction between the skateboard and the sidewalk. What is the skateboard's velocity relative to the sidewalk at this instant? Be sure to include the correct algebraic sign with your answer.
If the amine is valuable then slightly more than 1equivalent of a 3 degree (tertiary) amine, such as triethylamine orpyridine is added.
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From a point 1000 feet closer to the mountain along the plain, they find that the angle of elevation is 29 ^\circ. How high (in feet) is the mountain?
For comparison, a .22 caliber bullet has a mass of 2.6 g and, starting from rest, exits the barrel of a gun with a speed of 409 m/s. Determine the work done to launch the motion of both the hammer and the bullet.
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Suppose she starts at the top of the wave with a speed of 1.7 m/s and moves down the wave until her speed increases to 8.5 m/s. The drop in her vertical height is 2.6 m. If her mass is 59 kg, how much work is done by the (nonconservative) force of
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