Physics, 20.09.2019 05:30 sindy35111
Consider a 2100-kg car cruising at constant speed of 70 km/h. now the car starts to pass another car by accelerating to 110 km/h in 5 s. determine the additional power needed to achieve this acceleration. what would your answer be if the total mass of the car were only 700 kg
Answers: 3
Physics, 21.06.2019 22:30
Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.
Answers: 1
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)
Answers: 1
Physics, 22.06.2019 07:00
We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation
Answers: 3
Consider a 2100-kg car cruising at constant speed of 70 km/h. now the car starts to pass another car...
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