Physics, 01.03.2021 03:20 KillerSteamcar
On the position-time curve, if the slop of the tangent at a point is negative, that means
A) The velocity is negative
B) The velocity is positive
C) The acceleration is positive
D) The acceleration is negative
Answers: 1
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Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.
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Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack
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Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)
Answers: 2
On the position-time curve, if the slop of the tangent at a point is negative, that means
A) The ve...
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