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At 16 degrees celsius the carbon resistor in an electric circuit, connected to a 3.2 V battery, has a resistance of 194 ohms. What is the current in the circuit when the temperature of the carbon rises to 61 degrees celsius? Use a temperature coeffiecient of -0.0005 degrees celsius inverse. Answer in unites of mA.
The voltage in typical household wiring is 120 V. How much current does a 100 W lightbulb draw? What's the bulb's resistance under these conditions? The filament in the lightbulb has a diameter of 0.050 mm. What is the current density in the filam..
The drawing shows a top view of a square room. One wall is missing,and the wall on the right is a mirror. From point P in the center of the open side, a laseris pointed at the mirrored wall.
A car of mass 1790 kg is traveling without slipping on a flat, curved road with a radius of curvature of 34 m. If the car's speed is 15 m/s, illustrate what is the frictional force between the road and the tires?
The air around a spinning 142g baseball (below) of radius 3.55cm experiences a faster speed on the left than the right side, determine the pressure difference between the right and left sides of the ball
A vertical container with base area of length L and width W is being filled with identical pieces of candy,each with a volume of v and a mass m. Assume that the volume of the empty spaces between the candies is negligible.
In a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves on a circle. Determine the angle of the total acceleration relative to the radial direct..
What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the proton.
A geiger counter registers a count rate of 4,000 counts per minute from sample of a radiosotope. twelveminutes later the count rate is 1000 counts per minute. what is the half-life of the radiosotope?
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m, What is the weight of the bananas in newtons
A 2.26 kg block is on a plane inclined at 22.4 degrees with respect to the horizontal. How many forces are acting on the block
Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.6 seconds, what will be his final velocity and how far will he fall
the radius of curvature of the cornea is typically 7.7 mm. if we construct a lens with this radius of curvature on one
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