How can skin drag friction be reduced? Friction drag can be reduced by delaying the point at which laminar flow becomes turbulent. This can be accomplished by smoothing the exposed surfaces of the aeroplane by using flush rivets on the leading edges and through painting, cleaning, waxing, polishing or the application of surface coatings. Why […]
How do you find the wavelength of a yellow light?
How do you find the wavelength of a yellow light? The frequency (f) and wavelength (d) are related by the equation f = c/d, where c is the speed of light (approximately 2.99 x 10^8 meters per second). A specific yellow light might be 570 nanometers in wavelength, therefore, (2.99 x 10^8)/(570 x 10^-9) = […]
What is element 119 called?
What is element 119 called? Ununennium, also known as eka-francium or element 119, is the hypothetical chemical element with symbol Uue and atomic number 119. Ununennium and Uue are the temporary systematic IUPAC name and symbol respectively, which are used until the element is discovered, confirmed, and a permanent name is decided upon. What’s the […]
Is United States in the Western Hemisphere?
Is United States in the Western Hemisphere? The United States is located in both the Northern and Western hemispheres. The Equator divides the Earth into Northern and Southern hemispheres while the Prime Meridian divides the Earth into Eastern and Western hemispheres. How many countries are in the Western world? A Partial List of Western Countries […]
Why is a touchdown six points?
What are the common deficiency diseases?
What are the common deficiency diseases? Any currently treated or untreated nutrient deficiency or disease. These include, but are not limited to, Protein Energy Malnutrition, Scurvy, Rickets, Beriberi, Hypocalcemia, Osteomalacia, Vitamin K Deficiency, Pellagra, Xerophthalmia, and Iron Deficiency. How do you know if your body is lacking vitamins? 8 Common Signs You’re Deficient in Vitamins […]
Can you or can you please?
Can you or can you please? “Could” is the polite form of “can”—so both are correct, but we use them in different situations. We use “can” when we are telling someone to do something. We use “could” when we are making a request. Teacher to students: “Can you please be quiet!” What does explain yourself […]
What is the law of electric charges?
What is the law of electric charges? Things that have the same charge push each other away (they repel each other). This is called the Law of Charges. Things that have more electrons than protons are negatively charged, while things with fewer electrons than protons are positively charged. Things with the same charge repel each […]
Is a Van de Graaff generator dangerous?
Is a Van de Graaff generator dangerous? Preliminary cautions: The Van de Graaff can produce a spark that is simply irritating or quite dangerous. A spark several centimeters long can be the equivalent of 100 000 volts or more. What is the principle of the Van de Graaff generator? The Van De Graaff generator works […]
What percentage of our goods come from China?
What percentage of our goods come from China? 21.2% What food does the US import? United States agriculture imports total $127.6 billion with coffee and cocoa, fresh and processed vegetables, and grains and feeds accounting for the majority. Does US import meat from China? The US does import multiple types of food from China. Including […]