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When a 0.111 kg mass is suspended at rest from a certain spring, the spring stretches 3.90 cm. Find the instantaneous acceleration of the mass when it is raised 6.20 cm, compressing the spring 2.30 cm.
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 11.3 m/s, How high will be the highest point of trajectory
An extreme skier, starting from rest, coasts down a mountain that makes an angle of 34.3 ° with the horizontal. How fast is she going just before she lands
Suppose you have a tube 1.20 m long, open on both ends. Determine the frequency of the 2nd overtone, assuming the speed of sound to be 343 m/s. Repeat for the same length tube but with a closed end.
An archer shoots an arrow at a 74.0 m distant target, the bull's-eye of which is at same height as the release height of the arrow. At what angle must the arrow be released to hit the bull's-eye
question when a beam of monochromatic light is incident on two narrow slits by a distance .14 mm the angle between the
An automobile tire is rated to last for 40,000 miles. To an order of magnitude, through how many revolutions will it turn?
A toy cannon uses a spring to project a 5.34 g soft rubber ball. The spring is originally compressed by 5.09 cm and has a force constant of 7.98 N/m. With what speed does the projectile leave the barrel of the cannon
A disk-shaped merry-go-round of radius 2.63 m and mass 155 kg rotates freely with an angular speed of 0.744 rev/s. find the initial and final kinetic energies for this system
an ion having charge 6e is traveling horizontally to the left at 8.60kms when it enters a magnetic field that is
A cylinder is rotating about an axis that passes through the center of each circular end piece. Obtain the magnitude of the force of friction applied by brake shoe
An electron in an oscilloscope is accelerated as a result of the potential difference between the cathode and anode. The electron has negligible initial speed and a final speed of 2.40 107 m/s. Find the voltage drop from cathode to anode.
in reaching her destination a backpacker walks with an average velocity of 1.34 ms due west. this average velocity
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