A 2.50-kg rock is attached at the end of a thin, very light rope 1.45 m long. You start it swinging by releasing it when the rope makes an 110 angle with the vertical. You record the observation that it rises only to an angle of 4.5° with the vertical alter swings. (a) How much energy bas this system lost during that time? (b) What happened to the “lost” energy? Explain ?how it could have been “lost.”
Energy from the Sun Albeda ● Albeda is the reflection of the sun’s energy ● Earth’s (although changing frequently) is about 0.36 Watts ● One watt hour = 3600 Joules ● Nuclear power plants produce MUCH more energy than what is converted to electricity. ● Watt’s up Black Body Emissions ● Wien displacement - you can measure wavelength for peak energy ○ The hotter the object, the shorter the wavelength What’s in the atmosphere ● Nitrogen - 78.1% ● Oxygen - 20.9% ● H2O - 0.48% ● CO2 - 0.035% ● Ozone - 0.000007% ● Argon - 0.93% Quatar Depression and the Water Cycle ● The Quatar Depression is a depression in Egypt where it would be possible to utilize the water cycle to make a system for solar powered energy. Th
