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At the same instant that a motionless 9.6 kg ball is dropped from 27 m above the Earth's surface, a second ball, with a mass of 4.5 kg, is thrown straight upward from the Earth's surface with initial velocity of 21.1 m/s. They move along nearby lines and pass without colliding. At the end of 2.1 s, what is the velocity of the center of mass of the two-ball system?
q1. what mass in grams of steam at 100degc should be mixed with 257 g of ice at its melting point in the thermally
What is the highest speed with which an 1180-kg car can round a turn of radius 75.00 m on a flat road if the coefficient of static friction between tires and road is 0.80.
How fast is the shadow of the plane moving along the ground? (That is, what is the magnitude of the horizontal component of the plane's velocity?)
A cockroach of mass m lies on the rim of a uniform disk of mass 3 m that can rotate freely about its center like a merry-go-round. find the angular velocity of the cockroach-disk system
A 5kg sphere moves at 20m/s makes a perfectly inelastic collision with a second sphere that is at rest. What is the mass of the second sphere
A car drives straight off the edge of a cliff that is 60 m high. The police at the scene of the accident observed that the point of impact is 134 m from the base of the cliff. How fast was the car traveling while it went over the cliff.
part of the wonder of blowing soap bubbles is watching the different colors reflect. if part of the soap bubble looks
If the power output of a 630 kHz radio station is 50.0 kW, how many photons per second are produced
A 13.30 kg crate is pulled by an 181N force (parallel to the incline) up a rough incline. Assume that the incline makes an angle of 31.80° with the horizontal and that the coefficient of kinetic friction is 0.436.
To pump out a subway, a pump is used that can increase the absolute pressureon the pool of water at the bottom of yhe subway to 400 kpa. what is the flow velocity at street level
Determine the current I flowing through a solenoid, if the magnetic flux inside its core is found to be 2.60 multiply.gif 10-4 Wb.
Analog voltmeter A has an equivalent resistance of 2.40 x 105 ? and a full-scale voltage of 50.0 V. What is its full-scale voltage
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