about 1 month ago - No comments
Question by : Suppose you want to save energy and you are going to leave your warm home for a half hour on a cold day.? I thought to room temperature, but I am not sure. Suppose you want to save energy and you are going to leave your warm home for a half hour
about 2 months ago - No comments
Question by : what is the control variable and uncontrolled variable of what attracts more solar energy black,red,or white? i need to know wat is my controlled varriable and uncontrolled variable of what attracts more solar energy black,red,or white? —————————————— Answer by zircaliumYour uncontrolled variable is color – this is the experimental variable that you
about 5 months ago - No comments
Question by marcusosullivan: how do you connect a wind turbine to the electricity meter for net metering? —————————————— Answer by M1LithiumYou need what is called a “Grid Tie Inverter” It converts DC Power to AC, regulates the power, and makes the connection to the “Grid” (your meter). —————————————— Know better? Leave your own answer in
about 5 months ago - 9 comments
Question by Sam A: The Obama Admin wants roofs pained white to save energy on air conditioning. What? What about the darker colors helping “attract” heat energy needed in winter? Seems a trade off. —————————————— Answer by PanchodeWhen the Feds show up with the paint letm do it. Just paint it black after they leave.
about 7 months ago - No comments
Question by Kimberly: How much solar energy (kJ) would have to be transferred to a 59.0 meter length of asphalt highway that is 14.0? How much solar energy (kJ) would have to be transferred to a 59.0 meter length of asphalt highway that is 14.0 meter wide and 20.1 centimeters deep in order to raise
about 9 months ago - 5 comments
Question by Susan: Does a black solar vehicle capture more solar energy than a white solar car? So.. Solar Vehicle A is black, Solar Vehicle B is white. Because the color black absorbs sunlight, will solar vehicle A’s solar panel capture more solar energy because the solar car’s body attracts more light rays or does
about 10 months ago - 5 comments
Question by candy: what temperature would you turn your heater on to in the winter time to keep you warm and still save energy? If there is such a thing! I am visiting a cousin out of town and I tend to stay colder than he does which means I need more heat in the
about 1 year ago - No comments
Japan’s Nichia LEDs inside Dimmable with most standard TRIAC dimmers Soft warm white light Flood light 1 Year Warranty No mercury, no lead, no UV, and no IR. This environmentally friendly 17 watt dimmable LED Par38 can save up to 80% of energy over an incandescent or halogen bulb, and produces soft warm white light
about 1 year ago - No comments
The Led 5 watt Cree warm white 3000K light bulb has E27 medium base and consumes only 5 watts of power. The light produces 300 lumens of light, has a beam angle of 120 degrees and is rated for 50,000 hours of use. The light has a acrylic lens with a aluminum lamp base and
about 1 year ago - No comments
Bulb Shape: MR16 (2 inches in diameter) Base Type: GX 5.3 and GU 5.3 base Brightness: Warm White: ~150 lumens Natural White:~180 lumens Daylight White: ~205 lumens Energy Consumption: 3 watts Comparable to a: 35watt halogen bulb Fully Dimmable! This new 3watt LED Bulb is a direct replacement for a 35W MR 16 halogen bulb.