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Mable
Questions (24)
find dt/dx
t=((a^2+x^2)^1/2)/v1 + ((d^2+b^2)^1/2)/v2
0 answers
309 views
Suppose A light ray starts
at the point A = (0,a) in an uniform medium 1 where the speed of light is c1 and then passes through
1 answer
702 views
A rectangle is inscribed into a semi circle at radius 2. What is the largest area it can have and what are the dimensions
Answers
2 answers
1,638 views
it is assumed that f is differentiable and that w has an absolute maximum at t0
w(t)= f(t)/(c+t) derivative is
1 answer
411 views
w(t)= f(t)/(c+t)
w'(t)=? I got f'(t)(c+t)-f(t)/(c+t)^2 as the derivative and I'm having a hard time trying to prove that f(t_0) =
2 answers
391 views
One litre of water at 0 degrees Celsius will have a different volume at higher temperatures. For a temperature 0 ≤ T ≤ 30
1 answer
664 views
a stone that is thrown near the surface of the earth. There is no air resistance. Position increases in the up direction. The
1 answer
667 views
Car A with a mass of 1000kg is travelling east at 25m/s when it collides with car B, 2000kg, travelling north at 15m/s. After
2 answers
1,451 views
A drug company is testing new toothpaste in 2 flavors, regular and cinnamon. In a sample of 193 people, 121 liked regular, 112
2 answers
540 views
calculating the current ratio of the XYZ nonprofit corporation balance sheet using appendix b.
2 answers
1,321 views
How many grams of copper is deposited from an aqueous solution of copper sulfate, (CuSO4(aq)), by passing one mole of electrons
1 answer
640 views
The compound with the highest boiling point will be which of the following?
A.CH3Cl B.CH3Br C.CH4 D.CH3F
1 answer
1,587 views
Carbon is able to form large numbers of organic compounds because carbon can
A.form 4 bonds B.form single, double and triple
1 answer
922 views
The melting point of a compound is not influenced by which of the following?
A. polarity B. electronegativity of its atoms C. Van
3 answers
1,848 views
An amine is characterized by what functional group?
A.-CO2CH3 B.-NH2 C.-CO2H D.-CHO E.-OH
1 answer
1,490 views
Esters are
A.found in some medicines B.often fragrant C.essential oils in fruits and flower D.found in some types of flavorings
1 answer
1,398 views
Suggest a type of reaction and the conditions required to breakdown polyamides into their monomers.
0 answers
396 views
Draw three repeating units of the condensation polymer made from ethanedioic acid and ethanediol.
if anyone has a weblink that
2 answers
1,040 views
Suggest a type of reaction and the conditions required to breakdown polyamides into their monomers.
0 answers
384 views
Construct the following using molecules of your choice: a) a polyester and b) a polyamide. Each drawing should have four
1 answer
1,068 views
What types of linkage joins the nucleotides a) within a single DNA strand and b) between two single DNA strands?
1 answer
680 views
Explain in terms of molecular structure why sugars have a relatively high melting point compared to hydrocarbons of a similar
1 answer
847 views
Quartics using P(X) = af(b(x-c)+d
Recall Q(X) = (x-2)(x-1)(x+1)(x+2) a)Choosing a (i) Rewrite Q(x) for a. Let b = 1, c = 0 and d
0 answers
559 views
What functional group(s) must be present in a monomer of a condensation reaction?
1 answer
590 views
Answers (5)
collect like terms -- remember that double negatives makes a positive
collect like terms and simplify 4x^2-5x^2=-x^2 -3x=8x-11x 8=6+2 final answer : -x^2-3x +8
it is assumed that f is differentiable and that w has an absolute maximum at t0 Show that f(t0) = f′(t0)(C + t0).
(1) x-y=-11 (2) y+7=-2x rearrange the equation 1 to get y by itself -> x=-11+y substitute that in equation 2 y+7=-2(-11+y) and solve for y
Explain in terms of molecular structure why sugars have a relatively high melting point compared to hydrocarbons of a similar size.
