What would happen if you dropped a feather on the moon? The drag pressure across the surface area of the fabric is enough to slow descent to a safe speed. On the moon, there is no atmosphere — and therefore no aerodynamic drag to slow the fall of high surface area objects. If you were […]
How does Doppler effect occur?
How does Doppler effect occur? The Doppler effect is a change in the frequency of sound waves that occurs when the source of the sound waves is moving relative to a stationary listener. As the source of sound waves approaches a listener, the sound waves get closer together, increasing their frequency and the pitch of […]
What are the two definitions for Half Life?
What are the two definitions for Half Life? 1 : the time required for half of something to undergo a process: such as. a : the time required for half of the atoms of a radioactive substance to become disintegrated. Which of the following is the best definition for Half-Life? Physics. the time required for […]
What do you mean by Earth radiation balance?
What do you mean by Earth radiation balance? The radiation balance of the Earth system is the algebraic sum of the incoming and outgoing components of radiation. These components are balanced over long-time periods and over the Earth as whole. If they were not, the Earth would be continually cooling or warming. What is back […]
Who is known as the father of toxicology?
Who is known as the father of toxicology? Mathieu Joseph Bonaventure Orfila (1787–1853), often called the “Father of Toxicology,” was the first great 19th-century exponent of forensic medicine. Orfila worked to make chemical analysis a routine part of forensic medicine, and made studies of asphyxiation, the decomposition of bodies, and exhumation. What are the three […]
How Burmese pythons are affecting the Everglades ecosystem?
How Burmese pythons are affecting the Everglades ecosystem? Pythons compete with native wildlife for food, which includes mammals, birds, and other reptiles. Severe mammal declines in Everglades National Park have been linked to Burmese pythons. Raccoons and opossums often forage for food near the water’s edge, which is a habitat frequented by pythons in search […]
What is the smallest body organ?
What is the smallest body organ? What’s the smallest organ in the human body? You’ll find the pineal gland near the center of the brain, in a groove between the hemispheres. It’s not an organ like those in the abdominal cavity. What is the most important brain or heart? Many people would probably think it’s […]
What Colour carpet is best for not showing dirt?
What Colour carpet is best for not showing dirt? The best carpet color to hide dirt is dark brown. You can also successfully conceal dirt with darker shades of green and blue. Pink, light green and light brown carpets have a fair performance when it comes to camouflaging dirt. If you must use bright colored […]
What is the biogeochemical cycle of nitrogen?
What is the biogeochemical cycle of nitrogen? The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes. What causes lack of nitrogen in soil? Nitrogen deficiency […]
How much gold is in my phone?
How much gold is in my phone? There are 0.034 grams of gold in each cell phone, according to the U.S. Geological Survey. That’s the equivalent of 0.001 troy ounces, worth about $1.82 at today’s prices. There are also 16 grams of copper, worth about 12 cents, 0.35 grams of silver, worth 36 cents, and […]