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This procedure has actually been used to "weigh" astronauts in space. A 42.5- chair is attached to a spring and allowed to oscillate. When it is empty the chair takes 1.30 to make one complete vibration. But with a person sitting in it, with her feet off the floor, the chair now takes 2.54 for one cycle.
What is the mass of the person?
A skier with a mass of 63 kg starts from rest and skis down an icy slope that has a length of 50 m at an angle of 32 degrees with respect to the horizontal. Iillustrate what is the speed of the skier at the bottom of the slope?
A certain lightbulb has a tungsten filament with a resistance of 18.0 when cold and 138 when hot. Find the temperature of the hot filament
water flowing through a hose at 4.0m/s fills a 600l child's wading pool in 8.0min. What is the diameter in cm of the hose
An archer pulls back 0.75 m on a bow which has a stiffness of 200 N/m. The arrow weighs 50 g. What is the velocity of the arrow immediately after release
Tarzan, who weighs 639 N, swings from a cliff at the end of a convenient vine that is 18 m long, What would the greatest force on the vine be during the swing
A 1kg ball released from horizontal attatched to a 2.5 m string collides ellastically with a 2 kg block at rest. what is the speed of the block after the collision.
Throughout a race, runner runs 10.0 meters north, turns 45 degrees north of east, and runs 5 meters. Then, after a while, the runner turns due east and runs for 15 meters to finish the race. What is the magnitude and direction of the runner's tota..
Bob Richards is production manager of Zychol Chemicals, in Houston Texas, is making his quarterly report, which is to include a productivity examine for his section.
A parachutist with mass 86.0 kg jumps from an airplane traveling at a speed vi=112 km/hr at a height H=2570 m. He lands with a speed of vf=5.21 m/s.
Start from the expression of the electric filed outside an infinite sheet of uniform surface charge density
For nitrogen gas at 35 C calculate the vrms, the vp and the translational kinetic energy
Two blocks connected by a rope of negligible mass are being dragged by a horizontal force. Suppose F = 65.0 N, m1 = 10.0 kg, m2 = 26.0 kg, evaluate the acceleration of the system
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