Current in an incandescent lamp
The current in an incandescent lamp is 0.5A when connected to a 120-V circuit, and 0.2 A when connected to a 10-V source. Does the resistance of the lamp change in these cases? Explain your answer and defend it with numerical values.
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The registrar of a large university knows that 30% of the students come to college with credit for an advance placement (AP) course. The registrar is going to conduct interviews with students regarding their experiences at the university. Dependin
The uniform electric field between the two plates of a capacitor is 120 N/ and the potential difference between plates is Va-Vb = 32V. a) The magnitude of the electric force on a charge -2.0 X 10^-10C in the electric field is ___?
In lab, you titrate a standard solution of sodium hydroxide with an unknown solution of acetic acid. You make the standard bydissolving 25.0 g of solid sodium hydroxide in 500.0 ml ofsolution.
Calculate the velocity v of each 25 kg cylinder after the 20 kg cylinder has dropped 2 m. The 10 kg cylinder of case (a) is replaced by a constant force of 98.1 N (10 x 9.81) in case (b).
Determine the power required at steady state, in hp, to heat the building using electrical resistance elements and compare with the minimum theoretical power that would be required by a heat pump.
The combustion gases leave the heat exchanger at 380 K. Assume that all compression and expansion processes are isentropic. Determine the thermal efficiency of the combined cycle.
Carbon monoxide is a gas at 0 °C and a pressure of 1.06 × 105 Pa. It is a diatomic gas, each of its molecules consisting of one carbon atom (atomic mass = 12.0 u) and one oxygen atom (atomic mass = 16.0 u). Assuming that carbon monoxide
Write a brief note to describe the following graphs including its useful to a particular variable or data.
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