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A 30 g ball of clay traveling east at 2.0 m/s collides and sticks together with a 30 g ball of clay traveling north at 4.0 m/s. What is the speed of the resulting ball of clay?
Mike pulls a sled across level snow with force of 235 N along a rope that is 35.5° above the horizontal. If the sled moved the distance of 75.0 m, how much work did Mike do.
find the maximum distance she can be from the craft and still return within 2.30 min (the amount of time the air in her helmet remains breathable).
A child complains that her milk is too hot. It is indeed too hot at 90o C. what is the temperature of the mixture
On an air track, a 400g glider moving to the right at2.00 m/s collides elastically with a 500g glider moving in theopposite direction at 3.00 m/s. Find the velocity of first glider after the collision
After a 0.805 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.32E+6 m/s. find the Compton shift in the photon's wavelength
A tetherball leans against the smooth, frictionless post to which it is attached, What is the force the pole exerts on the ball
A steel (Young's modulus 2.0 x 1011 N/m2) wire is strung between two supports attached to a ceiling. What is the radius of the wire
Two gravitational forces act on a particle, in perpendicular directions. To find the net force, can we add the magnitudes of those two forces?
A square aluminum plate 10.0cm on a side carries an electric charge of -2.88x10^-12C.
A 1400kg sports car accelerates from rest to 90m/s in 26.9s . How much work is done on the car by the engine, What is the average power delivered by the engine
The molecular mass of helium is 4 g/mol, the Boltzmann's constant is 1.38066×10^?23J/K, the universal gas constant is 8.31451 J/K· mol, What is the average kinetic energy of each helium atom
A board lies on top of 2 uniform cylinders that lie on a fixed plane inclined at an angle theta. what is the acceleration of the board
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