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A diver performing a double somersault spins at an angular speed of4.9π rad/s precisely 0.70 s after leaving the platform.assuming the diver begins with zero initial angular speed andaccelerates at a constant rate, what is the diver's angularacceleration during the double somersault? answer in units ofrad/s2
A cannon ball of mass 10 kg is launched at its melting point with an initial velocity of 100 m/s. If all of its kinetic energy is converted to heat energy, causing the cannon ball to completely melt but not increase in temperature, what is the lat..
A consumer upset with the latest trend of postal rate increases has decided to try to send letters by balloon even though they may not reach their intended destination
A proton (mass 1.67 x 10^-27 kg) is moving at 1.30 x 10^-6 m/s directly toward a stationary helium nucleus (mass 6.64 x 10-27 kg ). what is the proton's velocity
A circular loop in the plane of the screen lies in a 0.61 T magnetic field pointing into the screen. What is the magnitude of the average induced emf
two blocks, each of mass m=2.80kg are hung from the ceiling of an elevator. If the elevator moves with an upward acceleration a of magnitude 1.9m/s^2, find the tensions T1 and T2 in the upper and lower strings
A viscous fluid is flowing in a constant cross-section, horizontal pipe. With a pressure difference across the pipe of 1 × 106 Pa, what is the new flow rate
If the balloon is 24.9 cm in diameter when child loses it, what is its diameter at an altitude of 1510 m? Assume that the balloon is very flexible and so surface tension can be neglected.
Two spaceships approach Mars from the same direction. One has a speed of 0.2c, What is the speed of one spaceship relative to the other
You switch from a 1.40NA 60x oil immersion objective to a 0.5NA 20x air immersion objective. What is the acceptance angle (in degrees) for the oil immersion objective
Energy is to be stored in a flywheel in the shape of a uniform solid disk with a radius of R = 1.30m and a mass of 73.0kg. find the maximum kinetic energy that can be stored in the flywheel
Calculate the minimum angle above the horizontal at which Hiawatha must aim in order to outrun the arrow.
A current of 2.5 a runs through 20 circular wire loops of diameter 10 cm. What is the magnetic field magnitude and direction at the center of the loops? (Show the derivation of any formula that you use.)
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