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A flywheel turns through 36 rev as it slows from an angular speed of 4.8 rad/s to a stop.
(a) Suppose a constant angular acceleration, calculate the time for it to come to rest.
(b) Calculate its angular acceleration?
(c) Calculate how much time is required for it to complete the first 18 of the 36 revolutions?
During a lunar eclipse, the Moon, Earth, and Sun all lie on the same line, with the Earth between the Moon and the Sun. Calculate the force exerted on the Earth by the Moon
An Italian chef, who is very scientific in her approach to cooking, measures the specific heat of a porcini mushroom by placing it in a calorimeter filled with 0.678 kg of olive oil at 13.2°C. What is the specific heat of the mushroom
air at 300 k and 100 kpa flows into a hair drier having electrical work input heating coil and fan motor of 1500 w.
a soccer player kicks a soccer ball initially at rest setting it in motion at a velocity of 30 m/s. what is the force exerted on the players foot
A light bulb is connected to a 240 Vwall socket. The current in the bulb depends on the time t according to the relation I = (2.121 A) sin[ (439.6Hz) t ]. What is the resistance of the bulb's filament?
A group of hikers hears an echo 3 s after shouting. If temperature is 16°C, how far away is the mountain that reflected sound wave.
A uniform soda can of mass 0.140 kg is 12.00 cm tall and filled with 1.31 kg of soda. After that small holes are drilled in the top and bottom (with negligible loss of metal) to drain the soda.
A ray of light is incident on a flat surface of a block off utilize quartz that is surrounded by water. The angle of refraction is 22.6°. Find the angle of reflection.
The big mall near Sally and Amy's city has extended their operating hours to accommodate the huge crowds expected for the After Thanksgiving Sale. How long were they in the mall
Two sound speakers separated by a distance of 3-meters, are driven in phase by same audio amplifier. A listener sits directly in front of one speaker at a distance of 4 meters from it so that listener and speakers form a right triangle.
you are designing a delivery ramp for crates containing exercise equipment. the crates of weight 1480 n will move with
A 12 kg block is at rest on a level floor. A 390 g glob of putty is thrown at the block such that it travels horizontally, hits the block, and sticks to it. what is the initial speed of the putty
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