Homework answers and tutorials

Waiting for answer What is the average deviation of ##1.76, 2.28, 1.90##?
mean deviation ##=0.2## Compute mean ##barx## ##barx=(1.76+2.28+1.90)/3=1.98## Mean deviation ##=(sum abs(xbarx))/n## Mean deviation ##=(abs(1.761.98)+abs(2.281.98)+abs(1.901....
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Waiting for answer One year on Mercury is equal to 87.97 Earth days. One year o...
Sorry it is a bit long but I wished to explain about ambiguities in the question and the derivation of units/equations. The actual calculations are short! With assumptions I get ## ~~ 0.69color(white)(.) "Earth years"##...
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Waiting for answer What is the area and circumference of of circle with diamete...
The area of circle is ##314.16## square inches and circumference is ##62.832## inches. Area of a circle with radius ##r## is given by ##pir^2## and circumference is given by ##2pir...
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Waiting for answer What is the definition of the Inverse Sine Function?
The Inverse Sine Function is denoted by, ##arc sin ## or, ##sin^1## and is defined by, ##arc sin x=theta, x in [1,1] iff sin theta=x, theta in [pi/2,pi/2]## The Inverse Sine F...
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Waiting for answer What are spinal nerves?
Spinal nerves come off the spinal cord. There are thirtyone pairs of spinal nerves are connected to the spinal cord. They have no special names but are numbered by level of vertebral column at which they emerge from the spinal cavity. There are: Eight cervical nerve pairs (C1 through C8) Twelv...
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Waiting for answer In order to open the clam it catches, a seagull will drop th...
##2.3s## (2sf), Assuming dropped from rest vertically with no air resistance. Assuming that we are treating the clam as falling vertically from rest with no air resistance, the follo...
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Waiting for answer Can Newton's Law of Cooling be used to find an initial tempe...
Yes, if you know the room temperature and the temperature of the cooling object at two known times ##t_{2} t_{1} 0## after the initial time ##t_{0}=0##. I will do this in the general...
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Waiting for answer What is the relationship between passive and active transpor...
use ATP to pump the nutrient against/up the concentration gradient. Transport occurs from a low concentration of solute to high concentration of solute. Requires cellular energy. And Passive transport is Movement of molecules DOWN the concentration gradient. It goes from high to low concentration,...
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Waiting for answer How did Mansa Musa, Sonni Ali, and Askia Muhammad change the...
Mansa Musa, Sonni Ali, and Askia Muhammad were all very effective leaders, and led their respective civilizations into golden ages. Mansa Musa Mansa Musa was arguably the greatest M...
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Waiting for answer How do you find the square root of 17?
##sqrt(17)## is not simplifiable and is irrational. We can calculate rational approximations like: ##sqrt(17) ~~ 268/65 ~~ 4.1231## Since ##17## is prime, it has no square factor...
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Waiting for answer Love is an understatement. What does this mean?
Not much ! But any sentence means little when taken out of context. Who is speaking? Is it Werther or is it Don Juan ? It makes all the difference.
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Waiting for answer Why can't we add a methyl group to to the first carbon atom...
You can add a methyl group to the first carbon atom of a propane parent chain, but that would be equivalent to butane , or normal, unbranched butane. Here's why that would be so. Below are the two isomers of butane, butane and 2methylpropane If you start with the for propane, or ##C_3H_8##,...
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Waiting for answer What is allopatric speciation?
The speciation is the fact that two different populations of a same specie leads to 2 news . Allopatric speciation Allopatric speciation can occurs when populations of a same specie are geographically separated, so genetics exchanges are not possible any longer.By living in different places, the...
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Waiting for answer What is the source of mechanical energy in an electric gener...
there are a lot of source of mechanical in an electric generator. most common of these is the hydro plant which uses the potential energy of the water as it falls from high place. the water hits the paddle of the generator and gives the needed kinetic energy. another is the use of wind turbines....
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Waiting for answer What is 0.25 as a fraction and percent?
As a fraction: ##1/4## As a percent: ##25%## ##0.25=25/100=5/20=1/4## 0.25=25/100=25% Hope this helps :)
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Waiting for answer How do you simplify and make the decimal 0.875 into a fracti...
##0.875=7/8## You can start by changing it straight forward to ##875/1000##. Now you have to see if this fraction can be reduced. Both numerator and denominator can be divided by 25...
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Waiting for answer What is projectile motion?
, also called ballistic motion, is a form of motion in which an object or particle (called a projectile) is thrown near the earth's surface, and it moves along a curved path under the action of gravity only....
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Waiting for answer What is a transformer?
Electrical transformer is a device to step up or step down voltage in ac circuits. There are primary winding and secondary winding on an iron core Picture credit en wikipedia .org....
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Waiting for answer What is the square root of 144?
##12## The square root of ##144 = 12^2## is ##sqrt(144) = sqrt(12^2) = 12##
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Waiting for answer How many grams of methane gas, CH4 , occupy a volume of 2.00...
Hello, You can start by converting you pressure from torr to atm. Or look up and R=constant with torr units. once you did that, use the formula PV=nRT, in order to find n=quantity of moles. Then, use the molar mass of CH4, to find the mass using this relationship n(mol)=mass(g)/molar_mass(g/mol)...
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