Physics, 23.10.2020 16:00 rockstargirl7256
To physics professors challenge each other to a 100 m race. Dr. Rice runs the race in 10.40 seconds. Dr. Lopez runs the first 25 m with an average speed of 10 m/s, the next 50 m with an average speed of 9.5 m/s, and the last 25 m with an average of 11.1 m/s. Who lost?
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Physics, 21.06.2019 21:30
Aparticle with mass 1.81×10−3 kg and a charge of 1.22×10−8 c has, at a given instant, a velocity v⃗ =(3.00×104m/s)j^. what are the magnitude and direction of the particle’s acceleration produced by a uniform magnetic field b⃗ =(1.63t)i^+(0.980t)j^?
Answers: 2
Physics, 23.06.2019 00:40
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
Physics, 23.06.2019 01:00
Use vsepr theory to predict the molecular geometry of the molecule hcn.
Answers: 3
To physics professors challenge each other to a 100 m race. Dr. Rice runs the race in 10.40 seconds....
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