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A solid wood door 1.00m wide and 2.00m high is hinged along one side and has a total mass of 43.0kg. Initially open and at rest, the door is struck at its center by a handful of sticky mud with mass 0.700kg, traveling perpendicular to the door at 13.0m/s just before impact.
A) Find the angular speed of the door.
B) Does the mud make a significant contribution to the moment of inertia?
A string of a violin is 32 cm long between fixed points with a fundamental frequency of 440 Hz and a mass per unit length of 7.2 x 10-4 kg/m. What are the wave speed and the tension in the string
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Methane (CH4) is burned with the 20% dry excess air at 227C. Combustion occurs at one atmosphere. Determine the adiabatic flame temperature (C)
What is the magnitude of the magnetic forces on each of three sides?
Determine the force (in N) of the car on truck all through the impact. Call this force positive if it points to the east, and negative if it points to the west.
A recording engineer works in a soundproofed room that is 45 dB quieter than the outside. If the sound intensity in the room is 1.30 x10-10 W/m2, what is the intensity outside.
Explain how does that compare with the heat needed to reaise the temp of the same mass of water through the same temp difference?
The depth of water behind the Hoover Dam in Nevada is 220 m. What is the water pressure at base of this dam? (Neglect the pressure due to the atmosphere.)
A 25 g glass tumbler contains 450 mL of water at 24°C. what is the final temperature of the drink
What force does the middle block exert on the leftmost block?
An isotope of beryllium with an atomic mass of 7.017u emits a gamma ray and recoils with a speed of 2.19m/s. find the wavelength of the gamma ray
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