Electronic flash unit cameras contain a capacitor for storing the energy used to produce the flash. In one such unit the flash lasts for 1/675 s with an average light power output of 2.7❝105 W. (a) If the conversion of electrical energy to light is 95% efficient (the rest of the energy goes to thermal energy) how much energy must be stored in the capacitor for one flash? (b) The capacitor has a potential difference between its plates of 125V when the stored energy equals the value calculated in part (a). What is the capacitance?
Answers: 3
Physics, 22.06.2019 05:00
Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock
Answers: 3
Physics, 22.06.2019 08:30
Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.
Answers: 1
Physics, 22.06.2019 11:30
If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?
Answers: 1
Physics, 22.06.2019 13:50
9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.
Answers: 1
Electronic flash unit cameras contain a capacitor for storing the energy used to produce the flash....
Arts, 06.03.2021 03:40
English, 06.03.2021 03:40
Mathematics, 06.03.2021 03:40
Social Studies, 06.03.2021 03:40
Mathematics, 06.03.2021 03:40
Mathematics, 06.03.2021 03:40
Advanced Placement (AP), 06.03.2021 03:40
Advanced Placement (AP), 06.03.2021 03:40
Mathematics, 06.03.2021 03:40
Spanish, 06.03.2021 03:40
Mathematics, 06.03.2021 03:40
Mathematics, 06.03.2021 03:40