What was the initial speed of the arrow
An archer shoots an arrow horizontally at a target 14 m away. The arrow is aimed directly at the center of the target, but it hits 55cm lower. What was the initial speed of the arrow?
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After falling from rest from a height of 27 m, a 0.53 kg ball rebounds upward, reaching a height of 17 m. If the contact between ball and ground lasted 1.6 ms, what average force was exerted on the ball?
If it takes Ann 0.79 s to react and apply the brakes, how many meters will she have moved before she begins to slow down?
A cowboy at a dude ranch ?lls a horse trough that is 1 m long, 74 cm wide, and 46 cm deep. He uses a 2.1 cm diameter hose from which water emerges at 2.7 m/s . How long does it take him to ?ll the trough?
How does the brick's kinetic energy (K) just before striking the ground compare with the gravitational potential energy (U_{grav}) at the top of the building? Set y=0at the ground level.
If the tosser must accelerate the bale from a dead start to V in 6feet how much force must be exerted? What value of angle would minimize this acceleration force?
River Pascal with a volume flow rate of 5.23×105 L/s joins with River Archimedes, which carries 9.80×105 L/s, to form the Bernoulli River. The Bernoulli River is 138.5 m wide and 3.17 m deep, and has a rectangular cross-section. What i
Determine the multitarget-single hit parameters D0, Dq, and n.
A powerful bolt of lightning can carry a current of 230 kA. If two such bolts strike simultaneously at a distance of 36 m from each other, what is the magnetic force per meter exerted by one bolt on the other?
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