Physics, 30.11.2019 06:31 kookycookiefanx
Ahorizontal pipe has an abrupt expansion from d1 = 5 cm to d2 = 10 cm. the water velocity in the smaller section is 8 m/s and the flow is turbulent. the pressure in the smaller section is p1 = 380 kpa. taking the kinetic energy correction factor to be 1.06 at both the inlet and the outlet, determine the downstream pressure p2, and estimate the error that would have occurred if bernoulli’s equation had been used. take the density of water to be rho = 1000 kg/m3.
Answers: 3
Physics, 21.06.2019 20:00
You notice a very one-dimensional-thinking snail crawling along one rail of a railroad track. naturally, you remove it to a safer place. but before you do, you observe it as it moves from position xi = -92.9 cm to position xf = -64.9 cm along the rail, as measured from a point where one rail abuts the next. what is the snail\'s displacement δx in centimeters?
Answers: 1
Physics, 21.06.2019 21:50
Adiver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. he then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. the net external torque acting on the diver is zero. what is his moment of inertia in the tuck position?
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Physics, 22.06.2019 14:10
Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?
Answers: 1
Physics, 22.06.2019 19:30
The ability to make things happen is also called a. heat b. force c. matter d. energy
Answers: 1
Ahorizontal pipe has an abrupt expansion from d1 = 5 cm to d2 = 10 cm. the water velocity in the sma...
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