Two cars start from rest at a red stop light. when the light turns green, both cars accelerate forward. the blue car accelerates uniformly at a rate of 5.2 m/s2 for 4.5 seconds. it then continues at a constant speed for 13.4 seconds, before applying the brakes such that the car's speed decreases uniformly coming to rest 437.29 meters from where it started. the yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the blue car comes to a stop. 1) how fast is the blue car going 3.6 seconds after it starts?
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Physics, 21.06.2019 20:00
Afixed electric space heater wired by a cable with an ampacity of 30 a should draw a maximum current of a. 30 a. b. 24 a. c. 15 a. d. 27 a.
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Physics, 22.06.2019 04:10
You will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. (refer to the walk-through video to locate the online lab within the online textbook).
Answers: 2
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 09:30
Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec
Answers: 3
Two cars start from rest at a red stop light. when the light turns green, both cars accelerate forwa...
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