Physics, 02.11.2020 02:30 babsst7480
A tennis ball and a solid steel ball of the same diameter are dropped at the same
time. Which ball has the greater amount of force acting on it?
A. The tennis ball
B. The steel ball
C. They both have the same amount of force acting on them.
Answers: 2
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Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?
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Asteel tube (k=50 w/mk) of inner and outer diameter di = 20mm and do=26mm, respectively, is used to transfer heat from hot gases flowing over the tube (h-hot = 200w/m2k) to cold water flowing through the tube (h-cold = 8000 w/m2k). what is the cold-side overall heat transfer coefficient uc? to enhance heat transfer 16 straight fins of rectangular profile are installed longitudinally along the outer surface of the tube. the fins are equally spaced around the circumference of the tube, each having a thickness of 2mm and a length of 15mm. what is the corresponding overall heat transfer coefficient uc? *solve for uc in both cases*
Answers: 1
A tennis ball and a solid steel ball of the same diameter are dropped at the same
time. Which ball...
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