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Tungsten-filament lightbulb emits light based on the temperature of the filament. which phenomenon does this demonstrate?

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

The velocity of sound wave in air at 35°c is 353m/s, calculate the velocity of sound at 46°c