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The fastest pitched baseball was clocked at 46 m/s. If the pitcher exerted his force (assumed to be horizontal and constant) over a distance of 1.0 meter and a baseball has a mass of 145 gram,
Find what force did the pitcher exert on the ball during this record-setting pitch? (You need to find the acceleration to use Newton's second law. F=ma)
A 75 N/m spring is suspended vertically with nothing attached to it and rests at equilibrium. Then a mass is attached to the spring and given a nudge. Determine the mass attached to the spring
A thin uniform rod (mass = 1.95 kg) swings about an axis that passes through one end of the rod, What is the length of the rod
one atmospheric pressure corresponds to the height of 0.76 m hg column in a barometer. if water is used instead of hg
a student pulls a 5kg object along a horizontal surface at a constant speed of 2m/s by a 15N force acting 30 degrees above the horizontal
The electric field at a distance of 0.148m from the surface of a solid insulating sphere with radius 0.367m is 1690N/C, Calculate the electric field inside the sphere at a distance of 0.217m from the center
A 65.0 kg bungee jumper steps off abridge with a light bungee cord tied to her and to the bridge. The unstretched length of the cord is 11.0m. She reaches the bottom of her motion 36.0 m below the bridge before bouncing back
An air bubble has a volume of 1.45 cm3 when it is released by a submarine 100 m below the surface of a lake. What is the volume of the bubble
white light is sent downward onto a horizontal thin film that is sandwiched between two materials. the indexes of
When a potential difference of 12V is applied to a wire 6.6m long and 0.35mm in diameter the result is an electric current of 2.1A
A ball is thrown from the brink of a cliff 15.0 m high with an initial velocity of v0 = 7.0 m/s at an angle q0 = 26.0 o above the horizontal. How long does it take to land
A 205-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp isinclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is0.900, and the log has..
Find the minimum initial speed of a projectile in order for it to reach a height of 2135 km above the surface of the eartH
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