a car is traveling at a constant speed of 14 meters per second along a straight highway. a tree and a speed limit sign are beside the highway. as it passes the tree the car starts to accelerate the car is accelerated uniformly at 2.0 meters per second ^2 until it reaches the speed limit sign 5.0 second later (what is the distance between the tree and the sign?)
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Physics, 22.06.2019 02:30
Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference
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Physics, 22.06.2019 16:30
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
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Physics, 23.06.2019 06:00
Atoms in a molecule are bonded together by sharing gaining or losing_
Answers: 2
a car is traveling at a constant speed of 14 meters per second along a straight highway. a tree and...
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