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a) A bicycle rider races with a constant speed around acircular track25m in diameter. what is the acceleration of the bicycle toward the center of the track if the speed is 6.0m/s
b)At Six Flags Over Georgia near Atlanta, the Wheelie carriespassengers in a circular path with a radius of 7.7m. the ridermakes a complete rotation every 4.0s. (a) what is a passengersangular velocity due to the circular motion?(b) what accelerationdoes a passenger experience?
c) A stunt driver drives a car so fast that it leavesthe ground as it tops a hill. if the hill is approximated by a165m radius vertical circle, what speed must the car exeed toleave the ground at the top of the hill?
A car is traveling along a straight road at a velocity of +27.6 m/s when its engine cuts out. For the next 1.40 seconds, Find the velocity of the car at the end of the initial 1.40-second interval
A 25 kg bear slides, from rest, 12 m down a lodgepole pine tree, moving with a speed of 5.6 m/s just before hitting the ground. What is the average frictional force that acts on the sliding bear
Two converging lenses, each of focal length 14.2 cm, are placed 59.9 cm apart, and an object is placed 26.6 cm in front of the first. determine the magnification of the system
a glass flask whose volume is 1000 at a temperature of 0.300 is completely filled with mercury at the same temperature.
A and B went to rock climbing. A and B used similar length rope but Arope is more elastic,which stretches a bit. B has static rope,which doesn't stretch,and is not recommended forsafety purpose in procliming.
Two thin-walled concentric conducting spheres of radii 5.0 cm and 10 cm have a potential difference of 100 V between them
A 1500kg weather rocket accelerates upward at 10m/s2. It explodes 1.9s after liftoff and breaks into two fragments, What was the speed of the heavier fragment just after the explosion
The hydrogen alpha emission spectra has a 658.28 nanometer wavelength. What is the red-shifted wavelength of hydrogen alpha light from the bootes galaxy cluster
A horizontal force of 210N is exerted on a 2.0 kg discus as itrotates uniformaly in a horizontal circle ( at arm's length ) ofradius .90 m. Calculate the speed of the discus
a certain wire has a resistance of 150 o. what is the resistance of a second wire made of the same material that is 14
A bicyclist coasts down a 7.0 degree hill at a steady speed of 5.0 m/s. what must be the cyclist's power output to climb the same hill at the same speed
Two relativistic rockets move toward each other. As seen by an observer on earth, rocket A, of proper length 500m, travels with a speed of .8c while rocket B, of proper length 1000m travels with a speed of .6c.
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