Physics, 15.04.2020 20:16 hrijaymadathil
Consider a household that uses 23.3 kW-hour of electricity per day on average. (kW-hours is a measure of energy that will be discussed in detail in a later chapter. At this point we want to establish estimations.) Most of that electricity is supplied by fossil fuels. To reduce their carbon footprint, the household wants to install solar panels, which receive on average 320 W/m2 from the Sun each day. If the solar panels are 16.7% efficient (fraction of solar energy converted into useable electrical energy), what area of solar panels is needed to power the household?
Answers: 2
Physics, 21.06.2019 20:10
Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to un to deliver the same amount of charge as current 1? 88.28 192 s 2016 s 21,000 s
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Physics, 22.06.2019 03:30
Two polarizers are oriented at 24.0β to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?
Answers: 2
Physics, 22.06.2019 10:30
Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?
Answers: 1
Physics, 22.06.2019 11:00
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 3
Consider a household that uses 23.3 kW-hour of electricity per day on average. (kW-hours is a measur...
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