Physics, 01.10.2019 17:20 fluffypuppies24
1. assume the acceleration of gravity is 2 10 m/sec downwards. a cannonball is fired at ground level. if the cannon ball rises to a height of 80 meters and travels a distance of 240 meters before it hits the ground, what is the magnitude of the initial veloci ty in meters per second?
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Explain vector addition, triangle method and parallelogram method
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Physics, 22.06.2019 06:30
Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)
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Physics, 22.06.2019 07:00
World class speed skaters can skate a 3,000-m course in about 4 minutes.what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s
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1. assume the acceleration of gravity is 2 10 m/sec downwards. a cannonball is fired at ground level...
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