What produces most lift at low speed? A: The straight wing is found on a lot of low-speed airplanes. This kind of wing extends from the body of the airplane at right angles. These wings provide good lift at low speeds, and they are structurally efficient, but are not suited to high speeds. Which airfoil […]
Can copper wire be used as a heating element?
Can copper wire be used as a heating element? Copper is a good conductor of heat. This means that if you heat one end of a piece of copper, the other end will quickly reach the same temperature. Most metals are pretty good conductors; however, apart from silver, copper is the best. Why is copper […]
Why are studies of identical twins raised in different environments extremely valuable?
Why are studies of identical twins raised in different environments extremely valuable? Why are studies of identical twins raised in different environments extremely valuable in understanding the causes of a disease? They are extremely valuable in understanding the causes of a disease, because it differentiates between nature vs. nurture. What is the rarest type of […]
Which force affects the movement of ship?
Which force affects the movement of ship? The main factors that affect the motion of the ship and its response are the shape, size and weight of the ship. These factors determine other important parameters such as the centre of gravity, the centre of buoyancy and the beam at the waterline. What are 4 Forces […]
What factor does not affect the total stopping distance of a vehicle?
What factor does not affect the total stopping distance of a vehicle? Visibility is one of a number of factors that do not affect your braking distance per se but can inhibit your thinking distance. The longer it takes for you to spot hazards in the road, the more time will have passed before you […]
What are the potential applications of gel electrophoresis?
What are the potential applications of gel electrophoresis? Applications of gel electrophoresis In the separation of DNA fragments for DNA fingerprinting to investigate crime scenes. To analyze results of polymerase chain reaction. To analyze genes associated with a particular illness. In DNA profiling for taxonomy studies to distinguish different species. What is the function of […]
What is the intensity of UV light?
What is the intensity of UV light? The intensity of UV radiation is measured in the units of milliwatts per square centimeter (mW/cm2) which is energy per square centimeter received per second. Also, it is measured in the units of millijoules per square centimeter (mJ/cm2), which is energy received per unit area in a given […]
What are pollutants give example?
What are pollutants give example? These are those which are emitted directly from the source and persist in the form in which they were added to the environment. Typical examples of pollutants included under this category are ash, smoke, fumes, dust, nitric oxide, sulphur dioxide, hydrocarbons etc. What are the major sources of pollutants? The […]
How does a dimming mirror work?
How does a dimming mirror work? Technology. In auto dimming mirror technology, a forward-looking sensor detects low ambient light from headlights behind the car and directs the rear-view sensor to look for glare. The mirrors darken automatically in proportion to how bright the glare is, then clear once the glare is no longer detected. Why […]
What is the source of energy for the life in deep sea ocean trenches where sunlight does not reach?
What is the source of energy for the life in deep sea ocean trenches where sunlight does not reach? Answer: Instead of sunlight, vent life relies on hydrogen sulfide – more commonly known as rotten egg gas and toxic to most land-based life. In a process called chemosynthesis, specialized bacteria create energy from the hydrogen […]