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A baseball outfielder throws a 0.150 kilogram baseball at a speed of 40.0 m/s and an initial angle of 30 degree. Find the kinetic energy of baseball at highest point of its trajectory?
A 46-N lithograph is supported by two wires. One wire makes a 27° angle with the vertical and the other makes a 12° angle with the vertical. Find the tension in each wire
A 4.6 kg object and a 13.0 kg object, both resting on a frictionless table, are associated by a mass less compressed spring. The spring is released and the objects fly off in opposite directions. The4.6-kg object has a velocity of8.0 m/s to the left...
A 5.00 g charged insulating ball hangs on a 27.0 cm long string in a uniform horizontal electric field. Given the charge on the ball is 2.00 ?C , find the strength of the field. The angle that the string makes with the vertical is 8.00° N/C.
A helium-neon laser of the type often found in physics laboratories has a beam power of 4.00 mW at a wavelength of 633 nm. Calculate the intensity of the focused beam
An electron is released from rest at the negative plate of a parallel plate capacitor. How fast is the electron moving just before it reaches the positive plate
A baseball is hit at Fenway Park in Boston at a point 0.626 m above home plate with an initial velocity of 31.00 m/s directed 50.0° above the horizontal. find the vertical distance by which the ball clears the wall
A heat engine has a useful work output of 4.0 kJ and expels 8.0 kJ of exhaust energy in each cycle. what is the engine's thermal efficiency
A solid, uniform ball rolls without slipping up a hill, asshown in the figure . At the top of the hill, it is moving horizontally; then it goes over the vertical cliff. How fast is it moving just before it lands
What is the maximum possible temperature of the cold reservoir.
An individual is running around a turn with an 11 m radius at 3.75 m/s. What is the runner's centripetal acceleration
an lc circuit consists of a capacitor with c2.90mf and an inductor with l30.0mh. at t0 the capacitor has a charge
A sprinter running the 100 m dash has a constant acceleration of 3.0 m/s2 for the first 3.5 seconds of the race, How long does it the sprinter to run the race
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