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For a science fair competition, a group of high school students build a kicker-machine that can launch a golf ball from the origin with a velocity of 39.5 m/s and initial angle of 30.4° with respect to the horizontal.
(a) Where will the golf ball fall back to the ground?
(b) How high will it be at the highest point of its trajectory?
(c) What is the ball's velocity vector (in Cartesian components) at the highest point of its trajectory?
(d) What is the ball's acceleration vector (in Cartesian components) at the highest point of its trajectory?
A bungee jumper with mass 63 jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 47. He finally comes to rest 21.00 below the level of the bridge.
Two 3.25μF capacitors are connected in series across the terminals of a 50.0-Hz ac generator that has a peak voltage of 244V. Determine the rms (peak) current in the circuit
Water flowing through a garden hose of diameter 2.72 cm fills a 22.0-L bucket in 1.60 min. What is the speed of the water leaving the end of the hose
An electron with mass 9.11×10-31 kg moves with a speed of 2.00×106 m/s in a circle of 2.83 cm radius under the influence of a magnetic field. What is the radius of the proton's orbit
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
A railroad car of mass 2.3 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, compute the speed of the three coupled cars after the collision
catapult fires an 800-kg rock with an initial velocity of 100 msat a 40deg angle from ground. what is the magnitude of
You throw a glob of putty straight up toward the ceiling, which is 3.00m above the point where the putty leaves your hand. What is the speed of the putty just before it strikes the ceiling
if a tune LC circuit has a capacitance of 7. 10^-2 pF and an inductor of 100 uH, what is its natural frequency
A block is at rest on a plank whose angle can be varied. The angle is gradually increased from 0 deg. find the kinetic coefficent of friction between the block and the plank
a parallel-plate capacitor with plate are A and separation x has charges +Q and -Q on its plates. The capacitor is disconnected from the source of charge, what is the total energy stored in the capacitor
Illustrate what is the maximum load that can be hung from a copper wire of diameter 0.46 mm? Answer in units of N.
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