Homework answers and tutorials

Waiting for answer How do you convert 12 kilograms to pounds using 1 kg = 2.2 l...
##26.4## lbs Conversions are always in direct proportion. More of one quantity means more of the other. Set up equivalent fractions and make sure you match the corresponding values...
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Waiting for answer If the measure of each interior angle of a regular polygon i...
The polygon will have 40 sides. The measure of the interior angles of a polygon is determined by the formula ##((n  2)180)/n## = interior angle measure were ##n## is the number...
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Waiting for answer Do you use a semicolon or a colon to introduce a quote? Or s...
You would normally use a comma. Example: Mr Johnson once said, "Never let your dreams be dreams."
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Waiting for answer What is the least common multiple of 6 and 8?
Lease Common Multiple is ##24##. Multiples of ##6## are ##{6,12,18,color(red)24,30,36,42,color(red)48.......}## Multiples of ##8## are ##{8,16,color(red)24,32,40,color(red)48..........
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Waiting for answer What is the best definition of a passive verb?
With a passive verb, the subject receives the action. When a sentence has a passive verb, the subject receives the action. for example: The ball was hit by the boy. The ball is th...
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Waiting for answer What is a caldera? How are they formed?
Caldera is a depression formed as a byproduct of volcanic eruption. As magma gets spewed out, the mouth of volcano collapses over itself forming a steep, bowlshaped depression. The depression us usually filled with water thus forming a caldera lake.
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Waiting for answer A triangular sail has a base length of 2.5 meters. The area...
The height of the sail is ##3m##. The area of a triangle can be calculated as: ##A=1/2xxbxxh## where ##b## is the length of base and ##h## is the length of height From the text we...
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Waiting for answer Where is DNA found in a cell?
Nucleus In eukaryotic cell, organelles are known to be compartmentalizeâ€”membrane bound which can be double or single membraneâ€”except the ribosome. The deoxyribonucleic acid (DNA), wh...
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Waiting for answer How do you convert 100 mm Hg to Pa?
##1.33xx10^(4) Pa## Let's use the following relationships to solve this problem: 1 atm = 760 mmHg 1 atm = 101,325 Pa Dimensional analysis will be best to convert from one unit o...
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Waiting for answer How do hydrogen bonds hold DNA together?
The between the nitrogenous base pairs of DNA are strong dipoledipole attractions. They hold the two strands of DNA together. The nitrogenous bases in DNA are A (adenine), C (cytosine), G (guanidine), and T (thymine). Here are their structures: In each of these bases, the nitrogen of the second...
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Waiting for answer How long did it take astronauts to reach the moon?
Apollo 11 took 51 hours 49 minute to reach lunar orbit. Astronauts came out after 109 hours /. latest unmanned craft n New horizon on way to Pluto crossed lunar orbit in 8 hours.
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Waiting for answer If y=6 for every value of x, can y be regarded as a functio...
Yes it can. A function is a mapping from one set (of numbers) to another. As long as each input gets mapped to only one output (e.g. the mapping doesn't take the input "3" and map...
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Waiting for answer How do you balance H3PO4 +Mg(OH)>Mg3(PO4)2 +H20?
##2H_3PO_4+3Mg(OH)_2 Mg_3(PO4)_2+6H_2O## Please note that since magnesium is in group 2 it has a valency of 2+ and so the formula for magnesium hydroxide is ##Mg(OH)_2## [Mistake i...
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Waiting for answer What is a hyperbole about school?
A hyperbole about school is: A Monday in school lasts a million years.
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Waiting for answer What is a wedge?
A wedge is a simple machine. It consists of a rigid object with narrow end and a wider end. It is used to change the magnitude and/or direction of an applied force. Typically forces applied to the blunt end (the top of the wedge in the figure above) are converted into forces acting perpendicular t...
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Waiting for answer How do you calculate molar volume of nitrogen gas?
Molar volume is the volume of the gas under the conditions T=273K, P=1.0 atm (101.3 kPa). These conditions are known as STP (standard temperature and pressure) You can use the equation: PV = nRT. If you isolate the variable "V" (by dividing both sides by "P"), you will be left with: V= nRT/P  wh...
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Waiting for answer How do you write ##400## in exponential notation?
See explanation. ##400=4xx10^2## To write a number in scientific (exponential) notation you "move" the decimal point until you get a number between 1 and 10 and multiply this number...
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Waiting for answer How do you find a double angle formula for sec(2x) in terms...
##sec2x## ##=1/cos(2x)## ##=1/(cos^2xsin^2x)## ##=1/(cos^2xsin^2x(1/sin^2x1/cos^2x))## ##=(1/(cos^2x)1/sin^2x)/(1/sin^2x1/cos^2x)## ##=(sec^2xcsc^2x)/(csc^2xsec^2x)##
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Waiting for answer Topics for working model of biology?
check the list below kidney model effect of amoking on lungs heat model circulatory model i hope it helped
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Waiting for answer What contributions did Hershey and Chase make to the underst...
They defined that DNA (not proteins) were responsible for transformation of (thus, genetic infomation) In their experiment, they labeled a virus capsid (protein part of the virus) w...
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