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Posts by Marisa

Total # Posts: 68

chemistry
How many mole of CL2 are needed to react with 2.0 mole Na?

chemistry
How many mole of CL2 are needed to react with 2.0 mole Na?

geometry
The area of a circle is about 78.5 square meters. Which of these is the diameter of the circle?

Chem 125
Three bulbs are connected by tubing, and the tubing is evacuated. The volume of the tubing is 27.0 mL. The first bulb has a volume of 37.0 mL and contains 5.65 atm of argon, the second bulb has a volume of 250 mL and contains 2.16 atm of neon, and the third bulb has a volume ...

Math
How many times greater is a digit in the one millions place than the same digit in the ten thousands place

statistics
the verbal section of GRE exam for admission into graduate school has a mean of 456 (s=140). Assuming the scores are normally distributed what percent of students will score 600 or higher? (choose range that fits your answer)

Earth Science
If we were to increase atmospheric CO2 fivefold by the burning of fossil fuels, how much would the atmospheric oxygen concentration change relative to what it is today? Assume: (a) CO2 concentration today is 400 ppm, (b) the atmosphere today is made of 21% oxygen, and (c) the ...

earth science
The global ocean covers about 70% of the Earth’s surface. If all the ocean water was uniformly distributed over the whole surface, what would be its depth? Assume that the Earth is a perfect sphere, and the average ocean depth is 4 km.

Physics
Consider charges placed along an x-axis. If a charge of +17 nC is placed at x = 0.00 m and a charge of +32 nC is placed at x = 1.00 m, where would a third charge of -14.0 nC be in electrostatic equilibrium? Give the x-coordinate for your answer in meters and with three ...

College Physics
Consider charges placed along an x-axis. If a charge of +17 nC is placed at x = 0.00 m and a charge of +32 nC is placed at x = 1.00 m, where would a third charge of -14.0 nC be in electrostatic equilibrium? Give the x-coordinate for your answer in meters and with three ...

math
7x6 equals 42

Science (Physics)
(3.2534x10^4m)+(7.25x10^6m)/(4.26442x10^-3km)-(7.1299x10^-5km)

Physics - Mini Lab
The reason I didn't do this was because I was gone the day they did this at school. And the teacher said I couldn't do it at school. So I need help and my teacher is a jerk, so I have no idea what to do. Please help me. I really need a good grade in this class. Please...

Physics
Continue walking at a constant speed. Just after you release the ball upward, make a sharp right turn. Where does the ball land?

Physics
Continue walking at a constant speed. Just after you release the ball upward, break into a run. Where does the ball land?

Physics
Continue walking at a constant speed. This time, stop instantly just after you release the ball upward. Where does the ball land?

Physics
So what exactly are you saying. Can you please clarify what you just said please. Thanks Marisa.

Physics
Newton's first law of motion states that an object in motion will continue to move at constant speed in a straight line. Only an outside force can change the speed or direction. If the object is at rest, it will remain at rest, unless an outside force is exerted on it. ...

pschology
ANOVA

MATH
A portable music player is on sale for 20% off its original price. The sale price is $96. What was the original price of the music player?

Physics
A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.880 m/s at an angle of 34.1° above the table, and it lands on the magazine 0.0790 s after leaving the table. Ignore air resistance. How thick is the magazine? ...

Physics
if a mouse has a mass of 62g, what is its weight?

Physics
1st Part We're looking for displacement which means V=displacement/time So it would look like this 5.2 m/s = displacement(unknown)/85 s Multiply both sides by 85 s to get rid of denominator so you end up with this 85 s x 5.2 m/s =442 m 2nd Part Finding position take the ...

math
one U.S. dollar is equivilant to $1.34 dollars Canadian dollars. Write an algebraic expression the number of US dollars you get for the N Canadian dollars

science
going 80 km/h how far can you travel in 30 minutes?

Algebra
2n-11=m/4 n=m/-3 Solve for the variables using substitution

Science
1.Why are there sutures on the human skull? What does this tell you about the actual structure of the skull?

Geometry
A regular hexagon is circumscribed about the ring surrounding the clock face. The diameter of the ring is 10in. Find the perimeter if the clock face. Please included work/steps to solve. Thanks!

Math
Z = 21. Mike's mistakes would be he didn't divide correctly.

Pre-Calc
Write a Sinusoidal function for the following. A ferris wheel is 100 feet in diameter and makes one revolution in 45 seconds. If the rider needs to walk up a ramp to get to their seat that is 5 feet above the ground, write the model for the rider.

Social Studies (ATHENS VS SPARTA)
well by fighting

algebra
Maria has 16 shirts and 3/8th of them  are red so how many shirts are red.?

Math
Flip a fair coin 9 times. Find the probability of getting the following outcome. (Round your answer to six decimal places.) at least 5 heads

AP chem
I don't understand how you got to 83.8%??

Chemistry
Methane is formed in landfills by the action of certain bacteria on buried organic matter. If a sample of methane collected from a landfill has a volume of 500. mL at 744. torr and 22. °C, how many grams of methane are in the sample?

scienc
what does the statment"the properties of salt are diffrent from the properts of the elements that go into making them"mean? i don't get what they are asking.

Math
yes

Math
how many out of 80 people

3 Grade
27

5th gread
why is breakfeast the most important meal of the day?

us history
thank you,what is maize????

us history
what foods where in the new world before the columbian exchange?

3rd grade
62 tens and 4 ones

math gr.6
How do I show the work?

math
For the pair of sets, explain if it is a subset of the other. A - B and A - (B - C)

reading
Can you give me ansewers to sentence check chapter5 final check the name of it is night nurse

LIT 210
Which author do you think most effectively utilized dramatic literary devices and conventions—Sophocles or Lorraine Hansberry? Explain your answer.

Geometry
What is the radius if the area of the circle is: 4x^2(PI) My answer 4x^2(pi)=(pi)(r)(2), 16x(pi)=(pi)(r)(2), 16x/pi=5x. 5(PI) My answer 5(pi)=(pi)(r)(2), sqare root of 5 is 2.23, which rounds to 3, 3(pi)=square root of 9. What is the area of the sector if the radius is 6 and ...

spanish
if you know when a program, what are you doing. i'm a spainsh expert :D kinda :D

11th grade
how do you solve a dilution problem, this is chemistry

math
The demand for your college newspaper is 2200 copies each week if the paper is given away free of charge and drops to 1000 each week if the charge is 10/copy. However, the university is only prepared to supply 600 copies each week free of charge but will supply 1400 each week ...

7th science
what are the differences between multiple alleles and polygenic inheritance???

7th grade science
Gregor Mendel was considered as the father of genetics because he was the first one to understand how DNA worked. Mendel was famous for working with pea plants. He breeded different kinds of pea plants to get certain kinds of colors of peas. Just like artists it took him to ...

7th grade science
Answer: heterozygus EXTRA: if it was TT it would be homozygous dominant. if it was tt it would be homozygous recesive

geography
how does floridas physical and cultural geography effect the way people live and work

math
false

work (physics)
a 25 kg object is accelerating from rest to a distance of 6 m in 4 seconds across a level floor. The friction is 3.8 N - what is the total work........ i started off by trying to find fa but it seems to give me an absurd answer.. maybe if u could help me by telling me the ...

chemistry
a heat lamp produces

algebra
okay so my question is 8-x/3=-10 i now that you would substract -8 from both sides but what do you do then

Algebra
the answer would be 15 becuase when you divide 45 by 3 you would get 15

Math(is this correct?)
yes it is

8th grade math
uhmm i think you would subtract 4 from both sides so that would just leave you with 3x 3x+4=193 -4 -4 3x= 189 then you would divide 3 from both sides which leaves you with 63 x=63 =] oh and make surewhen you do these promblems you go back and check it

sparta&athens
they both do hard advating

American Government
The Magna Carta!!! HELP ME PLEASE? How does this relate to today standards and help the Republican side view point? What is this saying????? From the magna Carta. 12. No `scutage' or `aid' may be levied in our kingdom without its general consent, unless it is for the ...

math
fatorise: a)x^2-5x b)x^2-81

Physics
A 74 kg skier is pulled 50 meters up a 30 degree incline. How much work is required to pull the skier up?

algebra
You first need to distribute the (-5) and the (2) on both sides of the equation. Then combine like terms, the (x)s and the numbers. Isolate the variable (x) onto one side. Solve for x

Analogies (just one)-- please help
Whirlwind is to breeze as downpour is to.?

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