Physics, 27.07.2019 04:50 aiken11192006
Apulley system lifts a 500-lb. block 2.0 feet with an effort of only 50 lb. if the 50 lb. moves 30 feet, calculate the efficiency of the pulley system.
Answers: 1
Physics, 21.06.2019 17:10
Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s
Answers: 1
Physics, 22.06.2019 22:30
Determine the net charge of the predominant form of arg at (a) ph 1.0, (b) ph 5.0, (c) ph 10.5, and (d) ph 13.5
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Physics, 22.06.2019 23:30
Sound travels slower in colder air that it does in warmer air. make a claim about the effect of air temperature on the speed of sound. support your claim with evidence
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Apulley system lifts a 500-lb. block 2.0 feet with an effort of only 50 lb. if the 50 lb. moves 30 f...
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