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1. The centers of a 15kg lead ball and a 50g lead ball are separated by 10cm
A) what gravitational force does each exert on the other (answer should be in Newtons and doesn't depend on x10)
B) What is the ratio of this gravitational force to the weight of the 50g ball
Air at 1 ATM & 80 °C is fed to a chiller. The air contains water vapour at 15 degrees of superheat. The air stream is chilled to condense 50% of the water in the feed. At what temperature must the chiller operate if the product streams are also at..
Find out the rate of the wheel's rotation in revolutions per minute that will produce this effect.
A major league pitcher can throw a baseball in excess of 42.9 m/s. If a ball is thrown horizontally at this speed, how much will it drop by time it reaches the catcher who is 18 m away from the point of release.
What provided the added kinetic energy? None of these is correct. the momentum of the platform the man moving the weights further away from his body the man pulling the weights closer to his body
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with an amplitude of 20.0 cm
An imaginary accelerator consists of colliding beams of electrons and protons, each of 2TeV total energy. What laboratory energy would be required to achieve the same center - of - mass energy if electrons collide with stationary protons?
Sam, who's mass is 79 kg, takes off across level snow in his jet powered skis. The skis have a thrust of 204 N and a coefficient of kinetic friction on snow of 0.1. Unfortunatately the skis run out of fuel after only 13 s.
A woman is reported to have fallen 139 ft from a building, landing on a metal ventilator box, which she crushed to a depth of 30 in. She suffered only minor injuries.
Landing on the Moon, a spacecraft fires its retrorockets and comes to a complete stop just 19m above the lunar surface. It then drops freely to surface.How long does it take to fall in seconds? What is its impact speed in meter per seconds.
The distance between deer B and C is 92 m. What is distance between deer A and C.
If a bird were to start out from the origin (where the student starts) and fly directly (in a straight line) to the school, illustrate what distance would the bird cover? Express your answer in miles.
When they oppose one another, the box accelerates at 0.240 m/s2 in the direction of F2. (a) What is the magnitude of F1? (b) What is the magnitude of F2?
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