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A waterpipe of radius 0.02 m delivers water at a flow rate of 0.01m^3/ s^1 at 20 degrees C.
(a) What is the average velocity of the water?
(b) Is the flow laminar or turbulent?
(c) Is there enough Information to determine the maximum velocity of the water in the pipe?
A 2.5 mm diameter copper wire carries a current of 33 A, uniformly distributed across its cross-section. Determine the magnetic field at the surface of the wire
An MP3 player operates with a voltage of 3.7 V, and is using 0.21 W of power. Find the current being supplied by the player's battery
A person weighing 700N on a wire. find the tension force in the two segments of the wire. left wire 20 degrees and right wire 40 degrees.
Playing near a road construction site, a child falls over a barrier and down onto a dirt slope that is angled downward at 42° to the horizontal, What is the coefficient of kinetic friction between the child and the slope
An observer, whose eyes are 1.99 m above the ground, is standing 35.0 m away from a tree. The ground is level, and the tree is growing perpendicular to it. The observer's line of sight with the treetop makes an angle of 23.0° above the horizontal. Ho..
A 2.2 mH inductor is connected in parallel with a variable capacitor. The capacitor can be varied from 100 pF to 270 pF. What is the range of oscillation frequencies for this circuit
A 128 carton is pulled up a frictionless baggage ramp inclined at 30.0 above the horizontal by a rope exerting a 72.60 pull parallel to the ramp's surface. If the carton travels 5.20 along the surface of the ramp, compute the work done on it by the r..
Two slits with a separation of 8.5 x 10-5 m create an interference pattern on the screen 2.3 m away. what is the linear distance from the central bright fringe to the tenth dark fringe above it
A flower pot fell of a windowsill and falls past the window below. you may ignore air resistance. it takes the pot .470s to pass the window, which is 1.80m hight. how far is the top of window below the windowsill from w/c the flower pot fell.
A crate of potatoes of mass 12.0 kg is on a ramp with angle of incline 30° to the horizontal, Find the frictional force (magnitude and direction) on the crate if the crate is sliding down the ramp
batted straight back to Lonnie with a return speed of 60 m/s. If the bat is in contact with the ball for .050 s, illustrate what is the impulse experienced by the ball.
A 9 ohm resistor are connected in series to a power supply. The voltage drop across the 6 ohm resistor is measured with a amphmeter and found to be 12.0 volts. what is the voltage setting of the power supply
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