Which cell has highest efficiency? Scientists have developed a solar cell that is capable of converting direct sunlight into electricity with 44.5 percent efficiency — making it, potentially, the most efficient solar cell in the world. Current solar technology only converts electricity with a maximum efficiency of about 25 percent. Which metal is used to […]
How do you tell if two vectors are perpendicular?
What are examples of alternative energy?
What are examples of alternative energy? The Best Examples of Alternative Energy Sources Solar Power. When most people think of alternative energy sources they tend to use solar power as an example. Nuclear Power. Hydroelectric Energy. Wave Energy. Biofuels. Natural Gas. Geothermal Power. Wind Energy. What is the three basic energy system? During exercise, your […]
When electrons are being shared between atoms it is called a n?
When electrons are being shared between atoms it is called a n? A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, […]
Which position is safe for always keep the cylinder?
Which position is safe for always keep the cylinder? Always keep the cylinders in a vertical position with the valve on top. If cylinder is placed in any other position, liquid LPG may gush out of the open valve creating a dangerous situation. Cylinders must be installed at ground level and never below ground level […]
Which gas is highly compressible?
Which gas is highly compressible? Gases are compressible because most of the volume of a gas is composed of the large amounts of empty space between the gas particles. At room temperature and standard pressure, the average distance between gas molecules is about ten times the diameter of the molecules themselves. How much work is […]
How much fuel does a train use per Kilometre?
How much fuel does a train use per Kilometre? The average fuel consumed per kilo- meter for all passenger and cargo trains is 7.97 L/ km. This value for local, trafficking, railway track laying and maneuvering trains is 7.92 L/km. Why do trains have wires above them? In our world, a catenary is a system […]
Do we eat sunlight?
Do we eat sunlight? Yes, definitely. Almost all living things on earth are fueled by the sun either directly or indirectly. (The exception is organisms that live near volcanic vents deep in the ocean.) Energy from the sun is taken in by plants and eaten by animals. Do humans get energy directly from the sun? […]
Why are there three beams on a triple beam balance?
Why are there three beams on a triple beam balance? The triple beam balance is used to measure masses very precisely; the reading error is 0.05 gram. With the pan empty, move the three sliders on the three beams to their leftmost positions, so that the balance reads zero. Are triple beam scales illegal? Cocaine […]
What frequency is gamma rays?
What frequency is gamma rays? Gamma rays have frequencies greater than about 10^19 cycles per second, or hertz (Hz), and wavelengths of less than 100 picometers (pm), or 4 x 10^9 inches. (A picometer is one-trillionth of a meter.) Is there a shorter wavelength than gamma rays? Electromagnetic energy travels as waves that vary in […]