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Questions (41)
T-10T-24=0
1 answer
392 views
C4H6O2
a) Draw a plausible structure for this compound that contains alcohol, ether, and alkyne functional groups. b) Draw a
2 answers
2,459 views
Indicate which elements can be used as potential semiconductors, and which ones can be used as potential dopants used to make
0 answers
619 views
Rank from longest to shortest bond length:
Si-O, Si-H, Si-S
2 answers
3,130 views
how many sigma and pi bonds in hooc-cooh
0 answers
769 views
How much energy (in kj) is required to ionize 2.78 moles of hydrogen atoms
the right answer is: 3.65x10^3 kj wondering how they
1 answer
7,178 views
Calculate the ionization energy (in kj) for a mole of hydrogen atoms, making the assumption that ionization is the transition
1 answer
754 views
what is the minimum uncertainty in the position of an electron moving at a speed of 4 x 10^6 m/s ± 1 %?
I keep getting 1.44
1 answer
955 views
4.72 g of a compound of carbon, hydrogen, and silver was burned in an atmosphere of oxygen, yielding 7.95 g of CO2, 1.02 g of
1 answer
1,778 views
Can geranium be used to detect infrared radiation emitted by a remote control device that has a wavelength of 902 nm? the work
1 answer
509 views
the lead (II) nitrate in 25.49 ml of a 0.1338M solution reacts with all of the aluminum sulfate in 25.00 ml solution. What is
0 answers
585 views
the lead (II) nitrate in 25.49 ml of a 0.1338M solution reacts with all of the aluminum sulfate in 25.00 ml solution. What is
1 answer
656 views
A 0.2638 g impure sodium carbonate sample is analyzied by titrating the sodium carbonate with the 0.1288 M hydrochloride
1 answer
843 views
4) An aircraft has a landing velocity of 50 ms-1 and decelerates uniformly at 10 ms-2 to rest . Calculate:
(a) the time taken to
1 answer
503 views
a. Employee job satisfaction (high, normal, low) and employee success (0-2 promotions, 3-5 promotions, 5+ promotions) are to be
4 answers
707 views
Why is it more significant to write in the present tense when describing a person in comparison to writing in the past?
1 answer
538 views
A straight road up a hill has a slope of 1/4. From the bottom of the hil to the top of the hill, the horizontal change is 80 m.
2 answers
561 views
When a rocket is moving at a constant speed, it has a relativistic mass that is 60 percent greater than its rest mass.
Find the
3 answers
588 views
a) Explain why the knee-jerk reflex still functions in a person with a severed spinal cord.
b) Why is there no sensation of the
0 answers
1,188 views
A market survey has estimate that the probability of a household's subscribing to the following magazines is:
Reader's Digest -
1 answer
1,122 views
To study the unity of Canada, a seven=person committee is to be selected from five public figures from Western Canada, five
2 answers
691 views
Each hand in the game of bridge has 13 cards dealt from a regular deck of 52 cards.
a) How many different bridge hands are
1 answer
732 views
Over the past week, an airline pilot was n Vancouver three days, Calgary two days, Whitehorse one day, and Winnipeg two days.
a)
1 answer
603 views
Louis Braille devised a system of six raised or not-raised dots to signify a letter of the alphabet.
a) How many different
0 answers
503 views
Samuel Morse developed a character coding system that was used to send messages along telegraph lines and also for light
1 answer
618 views
A ferris wheel has radius of 25 m and its centre is 27 m above the ground. It rotates once every 40 seconds. Sandy gets on the
3 answers
1,982 views
is there a formula for an INFINITE ARITHMETIC series/sequence?
i know its not s = a / 1-r.. that's for geometric.
1 answer
1,435 views
Given the expression Sn = n^2 + 2n for the sume of the first n terms of a series, determine
a) An expression, in simplified form,
0 answers
743 views
What weight of H2 at STP could be contained in a vessel that holds 4g of oxygen at STP?
First, I used the Ideal Gas Law to find
1 answer
726 views
Compare the chemical composition of the contents of the stomach one hour after eating a meal containing proteins, carbohydrates,
0 answers
1,036 views
Compare the chemical composition of the contents of the stomach one hour after eating a meal containing proteins, carbohydrates,
0 answers
657 views
today, i did a lab on the molar volume of hydrogen gas. in this experiment, we poured around 10 mL of hydrocholric acid into a
3 answers
2,421 views
in correspondance to my last post..
i was wondering.. how does one say "you know me better than that!" in french? that's wat i
2 answers
1,050 views
can someone please edit this for any spelling/grammar mistakes?
it's a skit on french expressions. N: Bonjour, Cynthia. C:
1 answer
629 views
Solve for x:
sin2x + cos^2x = 1 0° < or equal to x < 360°
3 answers
550 views
Solve for x:
2x^3 + 9x^2 +10x +3 =0
1 answer
600 views
Solve:
tanx - 2sin2x = 0 0°< or equal to x < 360°
3 answers
1,230 views
When I measure pressure in relation to depth, I found that as the depth increases, so does the pressure. I experimented this in
0 answers
577 views
When I measure pressure in relation to depth, I found that as the depth increases, so does the pressure. I experimented this in
0 answers
566 views
I did a lab on pressure and depth today. This lab was to simply submerge a plastic tube into a large graduated cynlinder to find
3 answers
706 views
1 word 2 meanings. My child has an assigment and the teacher wants 2 meanings for each word. What is this?
I think it either
0 answers
740 views
Answers (22)
The simultaneous attack of Austria by Prussia and Italy in 1866 is your answer
Austria’s desire to solidify its power after a military defeat to Prussia I just took the test and this is the correct answer
never mind! figured it out. forgot to multiply the velocity to 1%
acceleration = change in velocity / change in time so.. a = 10 - 0 / 1.35 a = 7.41 m/s^2
acceleration and velocity are two different things. try using.. d = vt + (1/2)a(t^2)
whoops.. wrote it wrong.. should be.. 0.6m = (mv) / (square root 1 - (v/c)^2) and that's as far as i got.. i don't know what to do from there or if it's the right equation :S
-5x > 0 -5x/-5 > 0/-5 x < 0 since we are dividing by a negative, the inequality changes so, no the answer is not the same 9x > 81 x > 81/9 x > 9
;S i checked the answer key and it says 6075
part a.. should be 5, 0.125 10, 0.0625 as you move down the y-values.. you can see the pattern that they go down by half each time.. so from 0.25, decrease that by half and so forth.
i don't get where the horizontal displacement of +30 comes from :S
b/2-15 = 16 b/2 = 16 + 15 b/2 = 31 b = 31 * 2 b = 62 answer A!
yes we did. so would it slow or speed up the rate of the reaction?
225 + 324 = c^2 549 = c^2 take the square root of 549. c = 23.4
o____O how did you get to that value? can you show me how to solve it algabraeically?
nevermind, i understand!
how did you get 210 and 330? =S
35/185 = x/100 x = [100 * 35] / 185 x = 18.9%
60/180 = x/100 x = [60 * 100] / 180 x = 33%
70/100 = x/3000 x = [3000 * 70] / 100 x = 2100
28/x = 40/100 isolate x x = [100 * 28] / 40 x = 70 so you are correct, it is answer c
17x - 89y combine the like terms (8x and 9x)
Thank you! What would be the difference if a small graduated cylinder was used instead of a large one? The pressure would still increase as the depth increases? What about the molecules?
