Physics, 03.07.2019 06:20 Xavier8247
The diameter of a centrifugal pump which is discharging 0.03 m3/s of water against a total head of 20 m is 0.4 m. the pump is running at 1500 r. p.m. a geometrically similar pump with rotor diameter of 25 cm is running at 3000 r. p.m (a) find the total head of the second pump in m a. 31.25 (3 marks) b. 46.23 c. 51.28 d. 37.43 (b) find the discharge from the second pump in m3/s (3 marks) a. 0.01465 b. 0.02310 c. 0.04565 d. 0.03453 (c). find the ratio of powers w1/w2 a. 1.31 b. 2.26 c. 1.19 d. 5.36
Answers: 1
Physics, 22.06.2019 05:10
What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n
Answers: 1
Physics, 22.06.2019 05:30
James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the
Answers: 1
Physics, 22.06.2019 10:30
You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?
Answers: 2
The diameter of a centrifugal pump which is discharging 0.03 m3/s of water against a total head of 2...
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