  Centrale des maths - centraledesmaths.uregina.ca  Dilemmes & doutes    « D & D »    Sujet: kilowatts   nouvelle recherche

3 articles trouvés pour ce sujet.    Page1/1            Solar cells 2018-02-12 karla pose la question :Solar (photovoltaic) cells convert sunlight directly into electricity. If solar cells were 100% efficient, they would generate about 1000 watts of power per square meter of surface area when exposed to direct sunlight. With lower efficiency, they generate proportionally less power. For example, 10% efficient cells generate 100 watts of power in direct sunlight. Suppose you want to supply 22 kilowattss of power to a house by putting solar panels on its roof. For solar cells with the average power of 49 watts per square meter of solar panels, how many square meters of solar panels would you need? Assume you can make use of the average power from the solar cellsPenny Nom lui répond.     Watts and kilowatts 2008-06-23 Kenneth pose la question :Hello: Here is my question: Find the kilowatt-hours of electricity used by a light bulb with a rating of 60 watts if the light is used for 10 hours.Stephen La Rocque and Harley Weston lui répond.     Kilowatts and Horsepower 2006-11-03 Michael pose la question :How many Kilowatts=1 Horsepower or Horsepower=1 Kilowatt?Stephen La Rocque lui répond.      Page1/1    Centrale des maths reçoit une aide financière de l’Université de Regina et de The Pacific Institute for the Mathematical Sciences.    Qui sommes-nous :: carte du site :: our english site