Physics, 10.01.2020 23:31 starbae1084
Avehicle accelerates from 0 to 30 m/s in 10 seconds on a
straight road, then travels 15 seconds at a constant velocity
next it slows down, coming to a stop in 5 seconds. the car
waits 10 seconds, and then backs up for 5 seconds
accelerating from 0 to -10 m/s draw a graph showing the
vehicle's velocity vs time by following these steps
what is the velocity of the vehicle at 0 seconds?
m/s
Answers: 2
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The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.
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Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.
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Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?
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Avehicle accelerates from 0 to 30 m/s in 10 seconds on a
straight road, then travels 15 second...
straight road, then travels 15 second...
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