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As seen from above, a playground carousel is rotating counterclockwise about its center on frictionless bearings. A person standing still on the ground grabs onto one of the bars on the carousel very close to its outer edge and climbs aboard. Thus, this person begins with an angular speed of zero and ends up with a nonzero angular speed, which means that he underwent a counterclockwise angular acceleration. The carousel has a radius of 1.70 m, an initial angular speed of 3.10 rad/s, and a moment of inertia of 121 kg · m2. The mass of the person is 47.1 kg. Find the final angular speed of the carousel after the person climbs aboard.
f =
Sea Launch mission planners are going to launch their Russian launch vehicle from a Lo = 3 degrees into LEO with an inclination of 34 degrees and the longitude of ascending node of 124 degrees. Current LST at the launch site is 1140.
A 42.5 mA current is carried by a uniformly wound air-core solenoid with 425 turns, a 19.5 mm diameter, and 13.0 cm length. Compute the inductance of the solenoid
If you were to walk briefly in space without a spacesuit while far from the Sun (as an astronaut does in the movie 2001), At what rate would you lose energy
A bowling ball encounters a 0.760m vertical rise on the way back to the ball rack, as the drawing illustrates. find the gain in potential energy at the top
One hockey puck of mass 0.2 kg strikes an identical stationary puck on a frictionless ice rink. what fraction of the energy was lost
A neutral conductor completely encloses a hole inside of it. you observe that the outer surface of this conductor carries a charge of -12 microC. how much charge is on the inner surface of the conductor
Power transmission lines often use a form of electric current called alternating current, but in many regions, such as the Province of Quebec, high-voltage direct-current lines are used instead. What is the power loss due to resistance in the line
Suppose a crate of mass 8.4 kg is placed on the plank in the figure below at a distance x = 8.3 m from the left end. find the forces exerted by the two supports on the plank
Two cars are initially at rest at the starting line of a 100-m long track. the first car accelerates at a rate of 2.50 m/s^2. how far behind is the first car
External forces compress 21 mol of ideal monatomic gas; during the process the gas transfers 15 kJ of heat to its surroundings, How much work was done on the gas
Maximum mass of exactly 1 metric ton?
A flywheel with a diameter of 0.510 m is rotating at an angular speed of 178 rev/min. What is the linear speed of a point on the rim of the flywheel
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