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Three identical light bulbs are connected in series, then are disconnected and arranged in parallel. For each of the scenarios below indicate what changes (if any) take place:
a. Total resistance of the circuit
b. Total current of the circuit
c. Power dissipated by the circuit
d. Voltage used by one of the light bulbs e. Resistance of one of the light bulbs.
a solenoid 1.40 m long and 2.50 cm in diameter carries a current of 18.0 A. Find the length of the wire forming the solenoid
A black hole has a mass that is 10,000 times the mass of the Sun. What is its Schwarzschild radius
A charged particle moves through a velocity selector at a constantspeed in a straight line. The electric field of the velocity selector is 4.15*103 N/C, while the magnetic field is 0.360T.
Light of wavelength 380 nm is required to cause electrons to be ejected from the surface of a metal. What is the kinetic energy of the ejected electrons
Two wooden crates rest on top of one another. The smaller top crate has a mass of m1 = 16.0 kg and the larger bottom crate has a mass of m2 = 90.0 kg. find the frictional force the lower crate exerts on the upper crate
To pump out a subway, a pump is used that can increase the absolute pressureon the pool of water at the bottom of yhe subway to 400 kpa. what is the flow velocity at street level
A closed ended manometer is used to measure the pressure in a tank of gas. what is the gauge pressure (in Pa) in the tank
A 0.100 kg block is suspended from a spring. When a small pebble of mass 40 g is placed on the block, What is the net force on the pebble when it is at a point of maximum upward displacement
A bar-shaped piece of silicon at room temperature is one inch inlength and has a 100 μm2 cross-sectional area (i.e. 10x10μm). It is doped with phosphorous to a concentration of1017/cm3. Find the electrical current through the bar when avoltage of ..
In the standing wave experiment, the length of the string is 1.400 m. When a mass of 80 grams is hung, the 7th harmonic is obtained. find the frequency of the vibrator
At 20C and 750 torr pressure, the mean free paths for argon gas(Ar) and nitrogen gas(N) are lambdaAr = 9.9 x 10^-6 cm, What is the mean free path of argon
A series ac circuit contains a 230? resistor, a 18.0mH inductor, a 4.50?F capacitor, What is the power factor of this circuit
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