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dave
Questions (200)
This man was responsible for the painting of the Sistine Chapel, as he spent 4 years lying on his back atop a scaffold , just a
0 answers
607 views
What transportation vessel and animal are on the family crest of the McDonalds of Scotland ? (Mr. G's ancestors)
2 answers
1,171 views
a 1.75kg pistol lies at rest on an essentially frictionless bench. it accidentally fires and shoots a 25 gram bullet parallel to
0 answers
397 views
what is the equation for the reaction of Cu(NH3)subscript2(SO4) with NaOH?
0 answers
405 views
If a pogo stick was to be reinvented and you were to choose the spring type. What type of spring will generate the most return
1 answer
675 views
please help me with thisone thanks
solve the inequality algebraically. Express the solution in interval notation. (x-8)^2/x^2-36
3 answers
703 views
Fish-liver oil is a good source of Vitamin A. When 0.1232 g of fish liver oil is dissolved in 500. mL of solvent, an absorbance
0 answers
594 views
Consider a red flame color produced by excited lithium with a wavelength of 671 nm. What is the mass equivalent of 1 mol of
2 answers
692 views
what would happen if you mixed isopropanol with copper and dranked it
0 answers
380 views
what would happen if you mixed isopropanol with copper
0 answers
295 views
An electron in the n = 5 excited state of a hydrogen atom emits a photon of 1281 nm light. To what energy level does the
4 answers
1,233 views
If a cube has one edge of 2m, what is the surface area of this cube?
1 answer
384 views
The heat of vaporization of a substance is
2900 J/g at its boiling point of 313�C. How much of this substance can be vaporized if
1 answer
1,217 views
What is the sum of the measures of the interior angles of an 11-side polygon?
1 answer
444 views
1. Test the Nation on CBC:“Test the Nation” was the biggest
survey ever conducted to see just how smart Canadians are. In
1 answer
477 views
1. What would you think of a company's ethics if ti changed accounting methods every year?
2. What accounting principle would
1 answer
596 views
Calculate the mass of salts needed for constructing a buffer using potassium monobasic phosphate and potassium dibasic phosphate
4 answers
845 views
what are the possible coordinate of the midpoint of the given segment
1 answer
634 views
10,000(1-n/20)=6500
please show work
1 answer
271 views
a baseball team buys 15 bats for $405. aluminum bats cost $25 and wooden bats cost $30. how many of each type did they buy?
2 answers
922 views
A marathon race has 522 runners divided into 6 groups. What is a reasonable number of runners in each group?
A 112, because 522/6
2 answers
427 views
if the diagonals of quadrilateral ABCD intersect at their midpoints, then the quadrilateral is a parallelogram.
Prove that AM MC
2 answers
621 views
really stuck, a 90 kg skier has 140 KJ of total mechanical energy when he is at a height of 120m above the bottom of the hill.
0 answers
495 views
a right circular cylinder has a volume 600cubic cm. if it costs $2 for the material needed to make the top and bottom and $3 for
0 answers
475 views
For which of these elements would the electron affinity process shown be least favorable?
1. H + e− ! H− 2. Li + e− ! Li−
1 answer
578 views
The first ionization potential of the elements B, C, and N (atomic numbers 5, 6, and 7) steadily increases, but that of O is
1 answer
2,063 views
For which of these elements would the electron affinity process shown be least favorable?
1. H + e− ! H− 2. Li + e− ! Li−
2 answers
632 views
In an atom, the maximum number of electrons having the quantum numbers n=5 and §¤ = 3 is:
1. 9. 2. 14. 3. 50. 4. 25. 5. 7.
2 answers
639 views
simplify (e is positive)
(24e)^1/3 / (3e)^1/3
1 answer
460 views
Due to a cart's sudden acceleration, a 200g wooden block remains on the front of the cart and does not slide or fall off. The
0 answers
530 views
at on time, the velocity of a rifle bullet was measured using a ballistic pendulum made up of a wooden block suspended from a
1 answer
1,157 views
• Find a peer reviewed article which discusses the effects of optimism on physical and psychological health. • Write a 1400
6 answers
1,035 views
I do not understand a problem from a text book or how to solve the problem for the answer. Could shomeone show me the steps
2 answers
826 views
y-3=1/2(x-6) "finding the value of a variable"
x=2 I know the answer is 1, but how do I work the problem to get 1. This problem
2 answers
644 views
what is the probability of a six card hand cantoning no fives?
2 answers
406 views
a group of hockey officials consists of 6 referees and 5 linesmen. the probability that the youngest referee and linesman would
1 answer
368 views
A Ferris wheel has a radius of 15 meters and takes 20 seconds to complete one full revolution. The seat you are riding in, takes
1 answer
849 views
A committee of 2 teachers and 3 students is to be randomly chosen from a group of 5 teacher and 6 students. the total number of
2 answers
2,090 views
the number of ways in which 18 students in Mr. Garr grade 3 class can line up for a photo if the the Armstrong triplets cannot
0 answers
411 views
Ticket Sales
Living in or near a metropolitan area has some advantages. Entertainment opportunities are almost endless in a major
0 answers
583 views
1570536900 x 3966.848485^-2 =
1 answer
274 views
In February 1955, a paratrooper fell 365 m from an airplane without being able to open his chute but happened to land in snow,
1 answer
4,542 views
write each decimal as a fraction or mixed number in simplest form 0.78
1 answer
770 views
What amount would accumulate if you invested $1,000 at the end of each period for 21 periods at 10%?
0 answers
360 views
using the quadratic equation on a 2 dimensional projectile motion problem...
i am solving for tf and i have it worked all the way
3 answers
612 views
(Projectile Motion) You are being asked to bombard an enemy fortress that sits on a 40 m tall cliff 100 m from your location.
8 answers
723 views
alright.. this is the linear programming question i got..
JJ Manufacturing has three factories (1,2,3) and three distribution
0 answers
762 views
alright.. this is the question i got..
JJ Manufacturing has three factories (1,2,3) and three distribution centers (A,B,C).
0 answers
680 views
At what rate must $500 be compounded for it to grow to 1079.46 in 10 years?
8 percent? i think
1 answer
744 views
nitorgen has an atomic number of 7. which of the following elementshave similair chemical proteries? carbon, neon, phosphorus,
0 answers
499 views
how to caculate moles with only molarmass
1 answer
394 views
After an unexpected increase in the price of oil, the long run adjustment_____ the price level and_____the unemployment rate as
0 answers
725 views
if production displays economies of scale, the long run average cost curve is:
a) upward sloping b) above the short run average
0 answers
1,054 views
When the price of summer tank tops falls and you buy more because they are relatively less expensive, this is called:
a)elasticit
2 answers
755 views
When the price of summer tank tops falls and you buy more because they are relatively less expensive, this is called:
3 answers
981 views
what are the common place copernicum or ununbium are found in
1 answer
425 views
what are place to find the element ununbium or copernicium
2 answers
427 views
does spots mean commercial
i have tried dictionaries and online translators none of them know the word
5 answers
525 views
what is wrong with saying
llegamos con mi mama en el aeropuerto? should the en el be del?
2 answers
484 views
a compound made in the first part of an experiment,
[Co(NH3)5Cl]Cl2 appeared to be a dark brown/orange/purple color. This product
1 answer
543 views
What are the possible ions that would form from a solution of [Co(NH3)5Cl]Cl2?
0 answers
181 views
show that (-1,1), (9,4), (20,6) and (10,1) are the vertices of a rhombus and then find the area of this rhombus?
1 answer
545 views
lula wants to round 76.24491 to the nearest hundreth. how do you do it?
1 answer
442 views
WHAT IS THE RECIPROCAL OF 5 3/4
3 answers
428 views
why must a business manage information as a resource?
1 answer
860 views
draw some quadrilaterals. one fifth is blue. one half is yellow.
2 answers
465 views
how do you detect the presence of co2 in a liquid
2 answers
508 views
a partial moves along the x-axis so that its velocity at time t, for 0< = t = < 6, is given by a differentiable function v whose
1 answer
1,408 views
t= hours 0 1 3 4 7 8 9
l(t) people 120 156 176 126 150 80 0 concert tickets went on sale at noon (t=0) and were sold out within 9
3 answers
1,192 views
Why did the South choose to return to a Confederacy despite the failures of this governmental form in the late 18th Century?
3 answers
705 views
n Fig. 21-41, three identical conducting spheres initially have the following charges: sphere A, 7Q; sphere B, -8Q; and sphere
3 answers
1,216 views
(a) What equal positive charges (in Coulombs) would have to be placed on two celestial objects with masses 9.40 x 1027 and 1.99
2 answers
701 views
Calculate the number of coulombs of positive charge in 261 cm3 of (neutral) water. (Hint: A hydrogen atom contains one proton;
1 answer
1,639 views
how do you find the reference angle of csc,sec, cot?
for example: csc theta= 2 times square root of 3 / 2
1 answer
554 views
The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is
2 answers
943 views
When a student plotted ln [vapor pressure of a gas] vs. inverse Kelvin temperature, she obtained a straight line with a slope
1 answer
948 views
if f(x) = x^2 - 2x, find f(x+2) - f(2) / 2
the answer is: x+2 but l got: x^2 - 2x - 8 = 0 which is x = 4 or x = -2
5 answers
395 views
find the equation of a line tangent to the graph of y = x / (square root of 5x^s +4), at x = 1.
am i suppose to take the
1 answer
481 views
Hi, I need help on answering this question:
To what extent did foreign affairs shape American domestic politics in the 1790s? --
2 answers
544 views
a balloon rises at a rate of 3 meters per second from a point on the ground 30 meters from an observer. find the rate of change
3 answers
5,622 views
how do I work this?
(-4x^12y^7)^2 (2x^-3y^-2)^2 divided by (5x^-3y^10)^-1 i need step by step help
1 answer
362 views
how do you get that answer???
2 answers
253 views
(2x^2y^-4z^-5)^3
How is the answer 8x^6 _____ y^12z^15
1 answer
388 views
Why is a nail attracted to either pole of a magnet, but another magnet is attracted to only one of the poles?
Did you post this
0 answers
633 views
Does a light bulb glow because....
a) there is burning inside b) an electric current glows c) the filament is hot d) a very small
1 answer
938 views
Does a 5000-watt heater use twice the energy of a 2500-watt heater. What calculation do I need to do to compare these and answer
0 answers
472 views
How do I calculate the orbital velocity of a satellite that is 400 miles above the earth?
Set the centripetal acceleration
0 answers
650 views
When a thermometer is placed in a beaker of hot water, WHY does the mercury level DROP, then rise?
See my answer below to the
1 answer
666 views
When a thermometer is placed in a beaker of hot water, why does the mercury level drop, rise?
The mercury expands when heated and
0 answers
879 views
why do fetal pigs have sensory papillae for bitter taste on the tongue?
i have no idea. maybe so they won't eat something bad?
0 answers
563 views
i have to write a project about amy project. i'll write for what i am trying to say but i hope you can help me put it in a
0 answers
634 views
i am giving a speech tomorrow on my persuasive speech on why i think music devices should be allowed in school as long as
0 answers
745 views
my major for college is biomedical engineering and i was looking athe salaries and they were around 50K to 80K.
and i was
0 answers
540 views
i'm supposed to write a law for abortion for my government class. And can you please read this over and give me any advice on
0 answers
456 views
Listening to music devices at school has negative stuff, but also postive stuff.....
i will have add more and make it look like a
0 answers
684 views
One of people’s favorite hobbies is to listen to music.
is there another word to say for people. it sounds too informal for an
0 answers
746 views
growth-oriented: i asked my dad for help in my english assignment and he gave me this word but can someone put this in simple
0 answers
630 views
a satellite is in geosynchronous orbit 36,000 km above earth. describe how you would fond the speed of this satellite.\
http://en
0 answers
433 views
I need help with this problem:you live in the middle of a block that is square and one mile around. there is a stop sign on each
0 answers
404 views
hi I'm taking sat II lliterature test and i was wondering if you can give me a site where i can take a practice test online for
3 answers
828 views
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