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Posts tagged Please
WHAT SIZE SHOULD THE SOLAR PANEL ON A SATELLITE ORBITING JUPITER BE?(NEED HELP SOON PLEASE)?
Jan 26th
Question by FydorMendeleev:
What size should the solar panel on a satellite orbiting Jupiter be?(need help soon please)?
A)What size should the solar panel on a satellite orbiting Jupiter be if it is to collect the same amount of radiation from the Sun as a 1.0 m^2 solar panel on a satellite orbiting Earth?
B)Can radio waves have the same frequencies as sound waves (20 Hz-20,000 Hz})?
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Q&A: PLEASE HELP WITH MY SOLAR ENERGY INSTALLATION?
Jul 5th
Question by bayphoto3001:
Please help with my solar energy installation?
I have a few volkswagen solar panels, those that they use to keep the batteries charged.
I´m planing to use them in combination with a automobile battery and a small power inverter with a timer to pump water only a couple of minutes a day to water my bonsais,
I have the panels, the battery, the timer, the power inverter and the pump,
What else do I need to make it work?
A friend told me that I have to prevent the energy from going back or something to shut off the timer when the batteries are charging. Thanks!
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Q&A: DOES THE EXHAUST FAN GENERATE ELECTRICITY IF THE WIND IS ROTATING ITS BLADE?? PLEASE TELL?
Jun 19th
Question by shayan ahmed:
does the exhaust fan generate electricity if the wind is rotating its blade?? please tell?
does the exhaust fan generate electricity if the wind is rotating its blade
because motion (because of wind) + magnetism (in the motor) = electricity
please tell this and tell me how to make easy dynamo
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HELP! PLEASE! [10 POINTS] HOW IS WIND ENERGY GENERATED AND HOW LONG WILL IT LAST?
Jun 18th
Question by Joshua 5533:
HELP! PLEASE! [10 points] How is wind energy generated and how long will it last?
Please tell me how wind energy is generated and how long will it last on earth. Also tell me 4-6 advantages of using it. THANK YOU SO MUCH.
Why is it a renewable resource?
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Q&A: HOW IS ELECTRICITY GENERATED USING WIND TURBINES? PLEASE EXPLAIN FROM THE PERSPECTIVE OF THERMODYNAMICS.?
Jun 9th
Question by Jesse12321:
How is electricity generated using wind turbines? Please explain from the perspective of thermodynamics.?
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Q&A: WHAT SIZE SOLAR PANEL NEEDED TO RECHARGE A 12 VOLT DEEP CYCLE BATTERY? PLEASE HELP?
May 29th
Question by demongelding1@hotmail.com:
What size solar panel needed to recharge a 12 volt deep cycle battery? PLEASE HELP?
Hello everyone. We are working on a solar charging system for a deep cycle battery, used to power a stock tank heater for our horse. I need to know how many watt solar panel I need to recharge this battery during daylight hours. We live in the Upper Peninsula of MI, also known as the tundra. We get temps -40 below regularly. So this info would be helpful. Thanks so much!!
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Q&A: PLEASE IS IT IMPORTANT TO GET A 12V DC GENERATOR WITH LOW OR HIGH RPM TO RUN A WIND TURBINE. A BIT CONFUSED?
Apr 23rd
Question by Tobi o:
Please is it important to get a 12v DC generator with low or High RPM to run a Wind Turbine. A bit confused?
Please is it important to get a 12v DC generator with low or High RPM to run a Wind Turbine. A bit confused??
Which is Important, the RPM or Watt of the generator?
I presume with a 12v DC generator, I do not need a charge controller for the batteries?
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ECOBRITES ULTR-BRITES 12X2W HI-PERFORMANCE LED LIGHT (REPLACING 200W INCANDESCENT/HALOGEN BULB). WARM-WHITE LIGHT OUTPUT IN 30-DEGREE ANGLE “SPOT” BEAM SPREAD WITH FOCUS LENS. STANDARD PAR38 / R38. DESIGNED FOR RECESSED DOWNLIGHT, SPOTLIGHT, TRACK LIGHT & FLOODLIGHT (REPLACEMENT OR RETROFIT FOR INCANDESCENT, HALOGEN, FLUORESCENT & CFL BULB). IDEAL FOR HIGH CEILING, LOBBY, ENTRANCE. FREE SHIPPING AND HANDLING WITHIN THE CONTINENTAL USA. * CAUTION: THIS IS NOT A DIMMABLE MODEL – PLEASE USE ECOBRITES DIMMABLE MODELS IF YOU ARE USING DIMMER SWITCH.
Apr 10th
- Save 78% more Energy than Incandescent Bulbs, or 47% more than Fluorescent Bulbs
- Rated Life 50X Longer than Incandescent Bulbs, 6X Longer than Fluorescent Bulbs
- No UV, IR or Heat Radiations, unlike Incandescent Bulbs
- No Mercury, Lead-Free and RoHS compliant, unlike Fluorescent Bulbs
- No Flicker, No Buzz Noise, or No Warm-up Delay, unlike Fluorescent Bulbs
ecoBrites Ultr-Brites 12x2w Hi-Performance LED light (replacing 200w incandescent/halogen bulb). Warm-White Light Output in 30-Degree Angle “Spot” Beam Spread with focus lens. Standard PAR38 / R38. Designed for Recessed Downlight, Spotlight, Track Light & Floodlight (replacement or retrofit for Incandescent, Halogen, Fluorescent & CFL Bulb). Best for High Ceiling, Lobby, Entrance. Free Shipping and Handling within the continental USA. * Caution: this is not a dimmable model – Please use ecoBri
SALE Price: $ 169.00
Rating: 
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ECOBRITES HI-BRITES 12X1W HI-PERFORMANCE LED LIGHT (REPLACING 100W INCANDESCENT/HALOGEN BULB). WARM-WHITE LIGHT OUTPUT IN WIDE ANGLE “FLOOD” BEAM SPREAD WITH 120-DEGREE DIFFUSER. STANDARD PAR38 / R38. DESIGNED FOR RECESSED DOWNLIGHT, SPOTLIGHT, TRACK LIGHT & FLOODLIGHT (REPLACEMENT OR RETROFIT FOR INCANDESCENT, HALOGEN, FLUORESCENT & CFL BULB). IDEAL FOR HIGH CEILING, LOBBY, ENTRANCE. FREE SHIPPING AND HANDLING WITHIN THE CONTINENTAL USA. * CAUTION: THIS IS NOT A DIMMABLE MODEL – PLEASE USE ECOBRITES DIMMABLE MODELS IF YOU ARE USING DIMMER SWITCH.
Apr 2nd
- Deliver 78% more Energy Savings than Incandescent Bulbs, or 47% more than Fluorescent Bulbs
- Rated Life 50X Longer than Incandescent Bulbs, 6X Longer than Fluorescent Bulbs
- No UV, IR or Heat Radiations, unlike Incandescent Bulbs
- No Mercury, Lead-Free and RoHS compliant, unlike Fluorescent Bulbs
- No Flicker, No Buzz Noise, or No Warm-up Delay, unlike Fluorescent Bulbs
ecoBrites Hi-Brites 12x1w Hi-Performance LED light (replacing 100w incandescent/halogen bulb). Warm-White Light Output in Wide Angle “Flood” Beam Spread with 100-degree Diffuser. Standard PAR38 / R38. Designed for Recessed Downlight, Spotlight, Track Light & Floodlight (replacement or retrofit for Incandescent, Halogen, Fluorescent & CFL Bulb). Best for High Ceiling, Lobby, Entrance.
Free Shipping and Handling within the continental USA. * Caution: this is not a dimmable model – Please use eco
SALE Price: $ 97.00
Rating:
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Q&A: PLEASE CAN YOU GIVE ME SOME TIPS ON HOW TO SAVE ELECTRICITY IN THE HOME & WHICH ITEMS USE THE MOST…?
Mar 27th
Question by ane519:
Please can you give me some tips on how to save electricity in the home & which items use the most…?
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