What is the cost of a human body, in terms of the different
2016年10月30日 — WARNING! Long answer! The elements in the human body are worth about $600 US. > 99% of the mass of the human body consists of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. They are worth about $576. All the other elements taken together are worth only about $9 more. For the calculations, I have assumed a mass of …
What is the full taxonomy classification of humans? | Socratic
2018年3月3日 — Domain: Eukarya Kingdom: Animalia Phylum: Chordata Class: Mamallia Order: Primate Family: Hominidae Genus: Homo Species: Sapiens Hope this helps. Eukarya means having ...
Combinations and Permutations - Statistics - Socratic
In poker, a 5-card hand is called two pair if there are two cards of one rank, two cards of another rank, and a fifth card of a third order of the cards doesn't matter (so, example, QQ668 and 68QQ6 are the same).
How can humans impact the lithosphere? - Socratic
2018年6月24日 — Humans can impact the lithosphere in the following ways :- The Lithosphere is the solid outer part of the Earth. Agriculture(farming or animal husbandry) :- If farmers uses fertilizers,chemical fertilizers and pesticides and insecticides then it may contaminate the soil and could also loose its soil fertility. It may also lead to soil erosion. Planting the same crop over …
What is the half equation for Fe2+ + MnO4-=Fe3+ +Mn2
2018年4月18日 — Half equations are exclusively OXIDATION or REDUCTION reactions, in which electrons are introduced as virtual particles... "Ferrous ion" is oxidized: Fe^(2+) rarr Fe^(3+) + e^(-) (i) And "permanganate ion" is reduced: MnO_4^(-)+8H^+ +5e^(-)rarr Mn^(2+) + 4H_2O(l) (ii) For each half-equation charge and mass are balanced ABSOLUTELY, and thus it reflects …
Simple Machines - Physics - Socratic
A simple machine is an elementary mechanical device with a specific mechanism that changes the direction or magnitude of a force. These simple machines have no internal source of energy and create a greater output force than the input force; the ratio of these forces is the mechanical advantage of the machine. The simple machines are considered to be the "building blocks" of …
Andy is 6 feet tall and is walking away from a street light that is 30 ...
2016年11月2日 — 2.5 feet/sec Let the man be x feet away from the street light, and his shadow length be y, Let the tip of the shadow be l feet away from the light such that l=x+y and we are given that dx/dt=2 By similar triangles: y/6=(x+y)/30 :. 30y=6(x+y) :. 30y=6x+6y :. 30y-6y=6x :. 24y=6x :. y=1/4x Now, l=x+y => l=x+1/4x :. l=5/4x Differentiating wrt x gives; (dl)/dx=5/4 And …
How do you balance this redox reaction using the oxidation …
2014年7月8日 — WARNING: This is a long answer. The balanced equation is "5Fe"^"2+" + "MnO"_4^"-" + "8H"^"+" → "5Fe"^"3+" + "Mn"^"2+" + "4H"_2"O". You follow a series of steps in order: Identify the oxidation number of every atom. Determine the change in oxidation number for each atom that changes. Make the total increase in oxidation number equal to the total …
How does mining affect the atmosphere, biosphere ... - Socratic
2018年2月13日 — Atmosphere: Pollutes the air with dust. This affects wildlife and creates poor air quality in the area. When coal is burned it releases many harmful chemicals into the air, such as methane (greenhouse gas) and contributes to global warming Biosphere: Destroys plant and animal habitats (kills plants, destroys resources that animals use) and causes animals to leave …
What is the value of 4P4? - Socratic
2017年4月12日 — ""_4P_4=color(green)(24) ""_4P_4 means the number of ways (permutations) of arranging 4 items from a collection of 4 items. There are 4 choices for the first item, and for each of these, there are 3 remaining choices for the second item (or 4xx3=12 choices for selecting and aarranging the first 2 items), and for each of these, there are 2 remaining choices for the third …