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An Olympic long jumper jumps 8.04m, reaching a height of 0.80 m halfway through his jump. What was his velocity as he left the ground? Also, how far would he be able to jump on the moon (g=1.63 N/kg) and how much time would he spend off the lunar surface?
An insulated Thermos contains 131 cm3 of hot coffee at 82 °C. You put a 12g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though ..
Two circular disks spaced 0.50mm apart form a parallel-plate capacitor. What are the diameters of the disks
The speed of a bobsled is increasing because it has an acceleration of . At a given instant in time, the forces resisting the motion, including kinetic friction and air resistance, total 500 N.
Put A 220 lb man presses the brakes with a force of 28 lbs/in2 to stop his car while traveling at a speed of 48 mi/hr. find the amount of deceleration experienced by him
Harry Potter (55kg) is riding his broom north when a Slytherin casts a spell to knock him from the broom. what is Harry's velocity
A 1.9-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. What is the elastic potential energy of the system
You would like to slow down your aging process by traveling very fast relative to Earth on a spaceship. What is the required speed of the spaceship
A coach tells his little league players that hitting a .275 batting average, within 7% percentage error, means that they had a really great season. 7-year-old Tommy ended the season hitting a .258 batting average. According to his coach, did he ha..
A guitar string is 91.00cm long and has a mass of 3.6g. From the bridge to the support post (= L) is 60 cm, and the string is under a tension of 551 N.
A body of mass 1.2 kg makes an elastic collision with another body at rest and continues to move in the original direction but with 1/7 of its original speed. What is the mass of the other body
A 9.00 bullet has a speed of 1.10 km/s. What is the bullet's kinetic energy if its speed is halved, What is its kinetic energy in joules
In a Young's double-slit experiment, the seventh dark fringe islocated 0.027 m to the side of thecentral bright finge on a flat screen, What is the wavelength of the light being used
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