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I) What is a circuit?
II) Identify 2 differences between a series and a parallel circuit.
III) Three lamps with resistances 1 ?, 2 ? and 3 ? are connected in series in a circuit with a voltage source of 12V.
A) What is the current in the circuit?
B) Calculate the voltage drop across each lamp.
The specific heat of ethanol is 2.44 J/g·°C. How various kilojoules of energy are required to heat 50.0 g of ethanol from -20.0°C to 68.0°C.How far last car travel before momentarily coming to rest.
A beam of sunlight encounters a plate of crown glass at a 52.70° angle of incidence. Find the angle between the violet ray and the red ray in the glass
A 5.5 ohm resistor, a 11.3 ohm resistor and a 11 ohm resistor are connected in series with a 36 V battery. If the resistors are instead connected in parallel across the battery, what is the equivalent resistance
A car sounding its horn (rated by the manufacturer at 600 Hz) is moving at 20 m/s toward the east. What frequency will he hear the assuming that the speed of sound is 343 m/s
A 532 nm light wave in vacuum transmits into a glass plate of thickness 1.00 cm and index 1.60, at normal incidence. How many wavelengths span the glass
The electron emitted during \(\beta\) in tritium (a hydrogen atom with two neutrons) hasa kinetic energy of 5.7 KeV. What is the deBroglie wavelength for this electron? What is the deBroglie wavelength for this electron? Would you expect such an e..
A closely packed coil of 500 turns carriers a current of 2.0 A. at what rate must the current change in order to induce an emf of 75V
The normal airflow over the Rocky Mountains is west to east. The air loses much of its moisture content and is chilled as it climbs the western side of the mountains. What is its temperature at the end of the descent
An underdamped oscillator, where gamma = omega/3, is initially at rest and is subjected to a driving force given by F(t)= Asin(omega*t)+Bsin(3*omega*t),
An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is Save = 1.23×109 W/m2. What is the RMS value of the electric field
A diver springs upward with an initial speed of 7 m/s from a diving board that is 2 m above the water. Find the total time the diver is airborne
You hear a fire truck with a certain intensity, and you are about 1 mile away. Another person hears the same fire truck with an intensity that is about 10 times less. how far is the other person from the fire truck
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