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What is the terminal speed of a 5.6 kg spherical ball with a radius of 3.0 cm and a drag coefficient of 1.55? The density of the air through which the ball falls is 1.2 kg/m3.
A generator with an rms voltage of 130V is connected in series to a resistor 3.25 kilo-ohm, At what frequency must this circuit be operated for the current to lead the voltage by 24.0 degrees
Copper has an electrical resistivity %u03C1 = 1.72 x 10-8 %u03A9m. What is the electrical resistance of a copper wire with a radius of 1.0 mm and a length of 25 m
A heavy piece of hanging sculpture is suspended by a 90 cm-long, 5.0 g steel wire, What is the mass of the sculpture
A 1500kg car skids to a halt on a wet road where coefficient of friction = 0.46. How fast was car traveling if it leaves 68m long skid marks.
A jet lands at 14.8 m/s, applying the brakes 2.19 s after landing. Find the acceleration needed to stop the jet within 5.89 102 m
A strip of doped silicon 325 µm wide contains 9.6 1022 conduction electrons per cubic meter and an insignificant number of holes, What is the thickness of the strip
A 69.20-kg free runner jumps off a wall at a velocity of 6.95 m/s at an altitude of 2.37 m above the ground. What is the free runner's kinetic energy when he jumps off the wall
Suppose you decide to take a trip in your car today. You start out and drive 32 miles in 20 minutes, What is your average speed for the entire trip including when you were parked
A 555.0 g/hr stream of liquid methyl alcohol, also called methanol, (CH3OH) at 7.20 atm, At what rate must heat be supplied to this system
When a high speed passenger train traveling at 113 km/h rounds a bend, the engineer is shocked to see that a locomotive has improperly entered onto the track from a siding and is a distance D = 642m ahead.
A waterpipe of radius 0.02 m delivers water at a flow rate of 0.01m^3/ s^1 at 20 degrees C. What is the average velocity of the water
lens forms an image of an object. The object is 16.0 cm from the lens, What is the focal length of the lens? Is the lens converging or diverging
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