Physics, 16.06.2021 04:50, renegade2020
One particular lightbulb has a 0.22-meter length of the tungsten wire used as its filament. This tungsten wire filament has a resistance of 19
ohms at a temperature of 20°C. The tungsten wire filament has a resistance of 240 ohms when this bulb is operated at a potential difference of
120 volts.
Explain why the resistance of the tungsten wire filament increases when the bulb is being operated compared to the resistance of the filament at
20°C
Answers: 3
Physics, 21.06.2019 17:00, emmdolzx
Ajogger accelerates from rest to 4.86 m/s in 2.43 s. a car accelerates from 20.6 to 32.7 m/s also in 2.43 s. (a) find the magnitude of the acceleration of the jogger. (b) determine the magnitude of the acceleration of the car. (c) how much further does the car travel than the jogger during the 2.43 s?
Answers: 2
Physics, 22.06.2019 19:00, Clervoyantyvonne
The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?
Answers: 3
One particular lightbulb has a 0.22-meter length of the tungsten wire used as its filament. This tun...
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