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Dennis
Questions and answers by visitors named
Dennis
Questions (106)
Find an angle between 0 & 360 degrees that is coterminal 820 degrees.
4 answers
3,053 views
"A friend" What is the grammatical name?
2 answers
204 views
Quadrilateral ABCD is a square. The coordinates of point A are (3,2), coordinates of point B are (-3,2),and the coordinates of
7 answers
2,334 views
Define Home Economics?
Its a academic discipline which combines aspects of consumer science, nutrition, cooking, parenting and
7 answers
2,163 views
Is this true or false
In general, the electronegativiy values of nonmetallic elements are greater than the electronegativity
1 answer
417 views
is this always true that the compound NH3 contains two double covalent bonds? and that the chemical formulas of molecular
1 answer
1,040 views
How is the ionic charge of a group 1A,2A, or 3A ion determined?
Group IA elements have 1 electron in their outer shell. Group IIA
1 answer
1,191 views
what is the difference between the sulfite and sulfate anions?
Sulfate is SO4 2-. Sulfite is SO3 2-. sulfate is
1 answer
354 views
what suffix ends the names of all binary molecular compounds?
http://chemistryhelper.googlepages.com/home9
2 answers
948 views
What causes dispersion forces?
Disperson forces are caused by an unsymettrical distribution of charge in the molecule, causing a
1 answer
481 views
what does an -ite or -ate ending in a polyatomic ion mean? i'm thinking it mean Oxygen is in the formula, or is it Sulfur is in
1 answer
718 views
How does accuracy differ from precision?
Accuracy is how close a measurement is to a generally accepted value. Precision is how
1 answer
509 views
Why must a calculated answear generally be rounded? and
how many siginificant figures must you round an answear to when
1 answer
419 views
complete the following sentence. For an experimental measurement, the experimental value minus the accepted value is called the
1 answer
476 views
What is a volume of 1 L also equal to?
1 liter = 1000 cubic centimeters It equals about 1.057 quarts
1 answer
521 views
A Kilogram was originally defined as the mass of ___________.
The kilogram was originally defined as the mass of one litre of
1 answer
502 views
Circle the letter of the unit of mass commonly used in chemistry that equals 1/1000 Kilogram.
a)gram b)Milligram c)milliliter
2 answers
1,119 views
Does the mass of an object changes with location?
No. Weight depends upon location; mass does not. According to the theory of
1 answer
414 views
The volume of any solid, liquid, or gas will change with _________.
temperature and pressure.
1 answer
364 views
The space occupied by any sample of matter is called its __________.
volume
2 answers
668 views
What is ment by a "derived unit."
http://www.physics.nist.gov/cuu/Units/units.html
1 answer
508 views
What properties explain the behavior of liquid-filled thermometers?
Liquids expand upon heating and contract upon cooling.
2 answers
2,309 views
What is the zero point, O K, on the kelvin scale called?
absolute zero. or 0 Kelvins.
2 answers
983 views
A change of temperature equal to one Kelvin is eual to a change of temperature of how many degrees Celsius?
1
1 answer
485 views
What is the volume of a paperback book 21cm tall, 12 cm wide, and 3.5 cm thick?
just multiply them all together, so do 21 x 12 x
4 answers
2,221 views
How does weight differ from mass?
Weight changes with gravity while mass does not change.
1 answer
437 views
What the relationship between degrees Celsius and Kelvins?
A one degree change in Celsius = a one degree change in Kelvin.
1 answer
436 views
How do i Convert 170 degress C to kelvins?
K = 273 + C
3 answers
456 views
How are the two parts of a conversion factor related?
Either the numerator or the denominator is one of the units needed for the
3 answers
3,290 views
what is the danger of Lenin's idea of party leadership?
Lenins idea of party leadership was dangerous because in such a corrupt
4 answers
2,403 views
How many representative particles are in 2.5 mol H2O2?
each mole consists of 6.02*10^23 things. Memorize that.
4 answers
3,839 views
what is the mass of two moles of NaCl?
You look up the exact numbers on the periodic table or some other chart. I will use
1 answer
623 views
Suppose income = $100, PX = $2.00 if the consumer buys less than 20 units of X, PX = $4.00 if the consumer buys more than 20
1 answer
424 views
What would one say their experiences may be during A Bloody Stalemate?
Think about a soccer game where no matter what either team
1 answer
983 views
Classify each of these statements as always true, sometimes true, or never true.
__ST___13.In an equation, a substance is shown
4 answers
1,842 views
What are the four basic elements of poetry
(Broken Link Removed) Here are a couple of sites which also may help.
1 answer
640 views
How do you find the etymology for example of the word panic?
In any dictionary (in print or online) there should be a section,
1 answer
667 views
Solve in terms of sine and cosine:
sec(x) csc(x)- sec(x) sin(x) so far I have: 1/cos(x) 1/sin(x) - 1/cos(x) sin(x) I am not sure
4 answers
595 views
How do you calculate the square footage on the surface of a cylinder if you know the diameter and length?
4 answers
896 views
Problem:
cos[arccos(-sqrt3/2)-arcsin(-1/2)] This is what I have: cos [(5pi/6)-(11pi/6)] cos (-6pi/6) or -pi giving an answer of
3 answers
562 views
Problem:
tan[arccsc(-5/3) + arctan(1/4)] My work: let arccsc(-5/3)=X and let arctan(1/4)=Y where -pi/2<=X<=pi/2, X cannot be 0
1 answer
473 views
A horizontal clothesline is tied between 2 poles, 12 meters apart. When a mass of 5 kilograms is tied to the middle of the
1 answer
944 views
A horizontal clothesline is tied between 2 poles, 12 meters apart. When a mass of 5 kilograms is tied to the middle of the
1 answer
1,134 views
What would be the dangers of mixing chlorofluorocarbons (r-22 refrigerant)and chlorine gas in a indoor swimming pool area?
1 answer
326 views
iam writting a term paper on the relationship between literature and history but i don't know what to write someone please help
3 answers
385 views
cory drops a bouncing ball form a height of 50 ft and it rebounds to 90% of its previous height.find the total distance the ball
3 answers
409 views
What are the weeknesses of chamberling doupoly model?
1 answer
386 views
Could someone please how this problem should be solved? Simplify and write the answer in exponential notation using positive
3 answers
524 views
Discuss the relevance of the five pillars of Islam to managers of organizations in the world today.
3 answers
425 views
how do i solve find x in x^+6x+9
1 answer
260 views
construct the confidence interval for the population mean c=0.98,x=5.6, s=0.6, and n=45
1 answer
869 views
y = -1/2 x-4
Complete the table for this equation. x y (x,y) -1 -2 -4 2 8
1 answer
359 views
How many kcal of heat are required to vaporize 25.0 kg of water at 100C?
1 answer
1,184 views
What would be the dangers of mixing chlorofluorocarbons (r-22 refrigerant)and chlorine gas in a indoor swimming pool area?
Questi
1 answer
382 views
What would be the dangers of mixing chlorofluorocarbons (r-22 refrigerant)and chlorine gas in a indoor swimming pool area?
Questi
1 answer
413 views
how do i solve 3x+2y=40,x+y=18 i would like the work shown.. thanks.
1 answer
301 views
Dividing a Polynomial - need detail and answer please!!!
(6x^4+4x^3-x^2)/(6+2x)
1 answer
319 views
A lower yield of phosphonium salt is obtained in refluxing benzene than in xylene. Look up the boiling points for these
3 answers
2,052 views
Two motorcycles are traveling due east with different velocities. However, four seconds later, they have the same velocity.
4 answers
3,342 views
A sprinter explodes out of the starting block with an acceleration of +4.1 m/s2, which she sustains for 1.2 s. Then, her
1 answer
430 views
The following file cshift.txt is encrypted using a shift cipher. Decrypt it using key exhaustion. I expect to see 26 complete
2 answers
490 views
A scale drawing of a house is drawn with a scale of 1 in. : 16 ft. Find the actual length of a hallway that is 5/8 in. On the
2 answers
973 views
A high school counselor wants to examine whether the teenage pregnancy rate at her school is different from the rate nationwide.
2 answers
515 views
Should Martha use an independent-samples t-test or a related samples t-test? Explain your answer.
1 answer
446 views
Liquid elemental iron is produced in the thermite reaction because enough heat is generated to melt the iron:
2 Al(s) +
2 answers
563 views
What is the pH of a buffer solution that is made by adding 21.0 grams of sodium fluoride to 1.00 Liter of 0.15M hydrofluoric
1 answer
465 views
I don't understand this question, could someone solve/walk me through this?
One afternoon in Fort Simpson, Northwest Territories,
2 answers
579 views
whats is a structure that was built with keeping costs low as the primary concern?
1 answer
332 views
whats is a structure that was built with keeping costs low as the primary concern?Also, what is a structure (with the same
2 answers
545 views
What is the largest volcano in close proximity to Calgary?
4 answers
428 views
What do you think about the rules of civilization? Do they free us and enable us to rise to our best selves? Or do the rules
2 answers
854 views
What survival tactics were used in the 1933 Ukraine Genocide?
2 answers
520 views
How could the 1933 Ukraine Genocide be prevented?
1 answer
413 views
Hello, I need some help with a few Government true/false questions.
The Office of Management and Budget can withhold funding for
2 answers
507 views
I need some help with some Government questions:
1. All of the following are ways that formulating our budget has changed EXCEPT:
2 answers
563 views
Hello. I am in need of some help with these following questions about The Odyssey:
1. When Odysseus finally lands upon the island
1 answer
672 views
Hi. I need some help with a few questions regarding The Odyssey and Orestia. (I have eliminated some of the possible choices
4 answers
625 views
Hi, I need some help with a couple government questions.
1. State governments could print their own paper money under the
2 answers
714 views
I need some help with some Government questions:
1. All of the following are ways that formulating our budget has changed EXCEPT:
3 answers
697 views
If you have 100 numbers (1 - 100, including 1 and 100) and you choose 2 of them then do the formula x + y + xy (x being the
1 answer
481 views
Can you please explain for me in a short paragraph what can trigger spectator aggression in sport
7 answers
722 views
A brick mass of 4.5 kg is thrown rertical into the air the brick leave the hand at a velocity of 10 m/s find the kinetic energy
3 answers
503 views
25 tens=_ hundreds 5 tens
1 answer
333 views
A right circular cone stands on a hemisphere. The base radius of the cone is equal to the radius of the hemisphere. If the base
2 answers
576 views
How long must a 25 degree ramp be to slow to a momentary stop a runaway truck moving along a truly horizontal highway at 85
3 answers
1,374 views
A car of mass 600 kg reduces speed from 90 km/h to 54 km/h in 15 seconds. Determine the braking power required to give this
5 answers
799 views
A vehicle travelling at 29m/s on a level road surface which curved to a radius of 50m about to overturn The centre of gravity at
2 answers
523 views
the room is rectangular and measures 9 feet on one side and 15 feet on the other. she needs 0.5 ounces of paint per spuare foot.
6 answers
768 views
what is -678* (34^56) =
1 answer
386 views
'Property law is an area of law that enforces rights of ownership, possession and transferability, over things , may it be,
3 answers
745 views
Graph a cosine function whose amplitude is 4, period is π , midline is y=−3 , and y-intercept is (0, 1) .
The first point
3 answers
2,296 views
A is a 4.5g of HNO3 per 1dm^3 of solution. B is a 7.0g of [XHCO3]SOH per 1dm^3 of solution. 25cm^3 of B was pipetted and
5 answers
718 views
The angle of depression from the top of a cliff to a boat sailing 100 m offshore is 32°. Calculate the height of the cliff,
4 answers
1,333 views
Find the vertical and horizontal asymptotes of the function
F(x)=x=(√9x^2)/(2x+1)
3 answers
637 views
Find the values of k so that the geometric mean between 25/2 and 2 is k+1. I need the answer right now.
4 answers
837 views
A three-kilogram cannonball is shot out of a cannon with an initial velocity of 300 m/s at a 25o angle. A headwind exerts a
4 answers
586 views
A vibrator generates 80 wavesin four seconds.the distance succesive between two succesive crests of the waves is 15cm. Determine
1 answer
161 views
Others say that the balloon was 23 metres high and 14 metres wide. Calculate the temperature of the air in the balloon (in
1 answer
125 views
Belizes Government is different from the governments of most Central America because belize
2 answers
333 views
Why is it important for schools and organizations to have an acceptable use policy
1 answer
290 views
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