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A 40 kg girl sits on a turn table with a moment of inertia of 1200.The turn table completes 1 revolution in six seconds. The girl starts in the middle of the turn table. The girl then walks to a point that is 10 m per pedicularly away from the center. Calculate the angular speed of the girl.
a cylinder contains 4.56 mol of helium gas at a temperature of 310 k. the molar specific heat of helium at con- stant
a 90 kg sofa sits stubbornly on the wrong side of your living room. if the coefficient of static friction between the
the nose of an ultralight plane is pointed south and its airspeed indicator shows 32 . the plane is in a 14 wind
A bumper car with mass m1 = 113 kg is moving to the right with a velocity of v1 = 4 m/s. A second bumper car with mass m2 = 94 kg is moving to left with a velocity of v2 = -3.2 m/s.
The intensity of the sunlight that reaches Earth's upper atmosphere is approximately 1450 W/m2. Find the rms value of the magnetic field.
A block of mass 2.50 kg is pushed 2.20 m along a frictionlesshorizontal table by a constant 16.0 N force directed 25.0 degreesbelow the horizontal. Determine the work done by the applied force.
At a given instant, the blood pressure in the heart is 1.50 104 Pa. If an artery in the brain is 0.43 m above the heart, what is the pressure in the artery
A car is moving with a velocity (3.0m/s)x + (1.0m/s)y and 3.0 seconds later its velocity is (6.0m/s)x - (3.0m/s)y.
An exoplanet with a mass of 5 times the mass of Jupiter and a radius of 2 Jupiter radii orbits a 3 solar mass star a distance of 10 AU from the star. estimate the orbital velocities of the star and the planet
A 1.4-m-diameter vat of liquid is 2.2m deep. The pressure at the bottom of the vat is 1.3atm. What is the mass of the liquid in the vat
Solar energy is incident on the pond at an average rate of 400 . If the water absorbs all the solar energy and does not exchange energy with its surroundings, explain how many hours will it take to warm from 15 to 25 ?
a classic 1957 chevrolet corvette of mass 1240 kg starts from rest and speeds up with a constant tangential
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