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Provide all logical steps in the solution(s)/ answer(s).
A child of mass 28.0 kg is sliding on ice with a velocity of 2.25 m/s in the positive x direction. She is holding a 2.4 kg ball in her hand. She throws the ball straight ahead of her with a velocity of 2.70 m/s (in the + x direction.)
a. What is her velocity immediately after releasing the ball?
(b) What ?s the velocity of the center of mass of the child and ball immediately after she releases the ball? (If you don?t do a calculation you must give a logical explanation for your answer.)
A brewery ferments beer in a raised and closed tank. The tank is a vertical cylinder, with a diameter 1.80m and contains fluid to a depth of 0.900m. How long does it take for all the beer to drain from the tank
a person rides on a 12-m-diameter ferris wheel that rotates at the constant rate of 6.6 rpm. calculate the magnitude
Light of wavelength 5.60 multiply.gif 102 nm passes through a slit of width 0.180 mm. Determine the width of the first-order bright fringe
q1. a 2.90-m-long 300 kg steel beam extends horizontally from the point where it has been bolted to the framework of a
Work of 2 Joules is done in stretching a spring from its natural length to 17 cm beyond its natural length. What is the force (in Newton's) that holds the spring stretched
After 6.00 kg of water at 77.5 oC is mixed in a perfect thermos with 3.00 kg of ice at 0.0 oC, the mixture is allowed to reach equilibrium. find the change in entropy that occurs
we drive a distance of 1 km at 16 kmh. then we drive an additional distance of 1 km at 32 kmh. what is our average
to make ice a freezer that is a reverse carnot engine extracts 38 kj as heat at -10degc during each cycle with
A block of iron at 43.0°C has mass 2.30 kg. If 3.50×104 J of heat are transferred to the block, what is its resulting temperature
A particle with charge 2.8 C moves through a uniform magneticfield. At one instant the velocity of the particle is (1.4 i +1.2 j + 0.48 k) m/s and the magnetic force on the particle is(11.9 i - 14.1 j + 1.57 k) N.
A 0.596 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, what is the initial acceleration of the metal cylinder
Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree at an angle of 33° above the horizontal. What is the magnitude of the net torque exerted on the branch by the children
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