Homework answers and tutorials

Waiting for answer What drives surface currents?
Winds, Rise and fall of tides and Thermohaline circulation. When used in association with water, the term "current" describes the motion of the water. Some currents you may be fami...
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Waiting for answer How do sedimentary rocks form?
Sedimentary rocks form when particles are deposited, compacted, and eventually cemented together over time to form a rock. Sediments are formed by the deposition of layers of particl...
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Waiting for answer How do you simplify ##36^ (3/2)##?
##36^(3/2)=+216## ##36^(3/2)## ##color(white)("XXX")=(36^(1/2))^3## ##color(white)("XXX")=(+sqrt(36))^3## ##color(white)("XXX")=(+6)^3## ##color(white)("XXX")=+216##
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Waiting for answer 6 1/2 divided by 3/4?
##8.67## or ##26.3## ##6 1/2 : 3/4## Make the fractions improper ##13/2 : 3/4## Reciprocal so it will be multiplication, instead of division ##13/2 * 4/3## ##52/6## Simplify ##26/3...
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Waiting for answer How are quantitative and qualitative observations different?
Quantitative observation have accuracy over qualitative observation as in quantitative observation data is recorded in terms of number . Qualitative observations are descriptive obs...
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Waiting for answer Why does nondisjunction cause mutation?
Nondisjunction is the failure of homologous chromosomes or chromatids to segregate during or . Nondisjunction during mitosis can result in . Nondisjunction during meiosis results in one daughter cell having both of a pair of parental chromosomes with the other having none. It causes a mutation in t...
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Waiting for answer How can altitudes be used to calculate the circumference of...
See explanation for a nice approximation, using altitude H km and visible horizon ( nautical ) distance D km : Circumference = ##2pi(1/2D^2/H+H)## km Let B be the beacon from the top...
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Waiting for answer What is 150 mm expressed in decimeters?
##150 mm div 10 div 10 = 150/(10xx10) = 1.5dm## Although decimeters exist, they are seldom used in this form. We prefer to use metres, centimetres and millimetres. We would say 20 c...
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Waiting for answer What are some examples of monosaccharides?
Examples of monosaccharides are glucose, fructose, galactose, ribose, and deoxyribose. Molasses has a high content of the monosaccharide glucose. Cherries contain the monosaccha...
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Waiting for answer What are the 5 states of matter?
Read below. Well look who's lucky. This is our lesson last week on my review class. Anyways, To update you, there are now SIX (yep, six!) states of matter. Solid Liquid Gas P...
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Waiting for answer What is the distance from earth to the sun in scientific not...
9.3 * ##10^7## 93,000,000 = ##9.3 * 10 ^7##
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Waiting for answer How far is Uranus from the sun?
Uranus is in elliptical orbit.The distance varies from 20.11AU to 18.33 AU. AU is the unit used in astronomy to measure distances inside solar system 1AU=149597870 Kilometers.
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Waiting for answer How do you find the integral of ##tan^2(x) * sec^3(x) dx##?
See the explanation section, below. Rewrite the integrand using ##tan^2x = sec^2x1##. Let's give the integral we want the name ##I## ##I = int tan^2xsec^3x dx = int (sec^5xsec^3x...
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Waiting for answer What are some examples of smooth muscle tissue? What are som...
A) The digestive tract. B) The muscles in your legs. Smooth muscle is usually in the parts of our body that are involuntary; that is, the parts that we don't have to think about. For...
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Waiting for answer What is asexual reproduction?
A form of reproduction that does not involve meiosis, ploidy reduction or fertilization, and the offspring is a clone of the parent organism;because of no exchange of genetic material....
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Waiting for answer Here is an interesting question: what is the difference betw...
crow Feathers: less shiny may have lighter markings Bill: smaller and flat. Ther is no tuft of hair atop the bill. Size: smaller, size of a pigeon. Raven Feathers: shiny and wet sheen Bill: bigger more powerful and curved. There is a tuft of hair atop the bill. Size: larger; almost size o...
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Waiting for answer What is the derivative of ##e^x(sinx)##?
##e^x(cosx+sinx)## Since this is a product of 2 functions we may apply the which states that the derivative of a product of 2 functions is the first function times the derivative of...
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Waiting for answer Calculate the wavelength of the spectral line in Lyman serie...
##lambda=656"nm"## The Rydberg expression is : ##1/lambda=R[1/n_1^(2)1/n_2^(2)]## ##1/lambda=1.0973xx10^(7)[1/2^(2)1/3^(2)]## ##1/lambda=0.1524xx10^7m^(1)## ##lambda=6.56xx10^(7)"m"= 656"nm"##
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Waiting for answer Convert 3/10 to a decimal and then to a percent?
##3/10 = 0.3 = 30%## Any fraction can be expressed in decimal notation by dividing the top number (numerator) by the bottom number (denominator). So either on paper or by use of a ca...
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