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A laminar boundary layer of 20-C water moving at 0.8 m=s exists on one side of a 2-m-wide, 3-m-long flat plate. At x ¼ 3 m find:
(a) The boundary-layer thickness.
(b) The wall shear stress.
(c) The maximum y-component of velocity.
(d) The drag force.
(e) The displacement and momentum thicknesses.
(f) The flow rate through the boundary layer.
A voltage of 10 Volt is connected across a resistor of 10 capital omega. Determine the power dissipated in the resistor
A stream of singly ionized gold atoms pouring from a small oven impinges on a metal target. The target is attatched to the positive terminal of a 12V battery and oven is attatched to the negative terminal. How much kinetic energy do the ions pick up ..
Suppose you are an astronaut and you have been stationed on a distant planet. What is the acceleration due to gravity on the planet
0.5 kg of ice slowly melts. The latent heat of fusion is 80 kcal/kg. By how much does the entropy of the ice change
The maximum wavelength for which an electromagnetic wave can eject electrons from a platinum surface is 196 nm. When radiation by a wavelength of 156 nm shines on the surface, what is the maximum speed of the ejected electrons?
A cart for hauling ore out of a gold mine has a mass of 437 kg, including its load. Find the work that the donkey performs on the cart during this process
A conducting sphere of radius r1 = 0.37 meter has a total charge of Q = 3.3 μC. Find what is the total charge on sphere two, Q2 in C
An electron is released from rest at the negative plate of a parallel plate capacitor. How fast is the electron moving just before it reaches the positive plate
A constant horizontal force a pushes a kg FedEx package across a frictionless floor on which an xy coordinate system has been drawn. package's x and y velocity components versus time t.
An engine does 17200 J of work and rejects 6470 J of heat into a cold reservoir whose temperature is 272 K
A laserpointer has a beam intensity of 37 W/m2 and a beam radius of 3.1 mm. what is the force on the car
Block A (5.70 kg) is resting on a smooth (no friction) horizontal surface. Find the acceleration (magnitude and direction) of block
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