Posts by Sam

Total # Posts: 5,363

Chem (general)
Thank you so much for the help Dr. Bob222! I was thinking there wouldn't be anything left since it was the limiting reactant but just wanted to make sure . Thanks again!!

Chem (general)
Little confused on how to get part B. A) if 3.00g of hydrosulfuric acid is reacted with 3.00g of silver nitrate, calculate the mass (in g) of solid silver sulfide formed. Which is the limiting reactant? (Hint: the other product is nitric acid). B) calculate the moles of EACH ...

math
write a ratio in 3 ways, comparing the first quantity to the second. A week has 5 school days and 2 weekends. Second question about 1 in 4 people swims at least 6 times each year.

geometry
Obtuse angle

physics
A bullet is fired straight up from a gun with a muzzle velocity of 214 m/s. Neglecting air resistance, what will be its displacement after 8.2 s? The acceleration of gravity is 9.8 m/s2 . Answer in units of m

Science-HELP?
thank you ms. sue and damon

Science-HELP?
A map of Florida is an example of a(n) ________. *I researched this a little bit and I thought it might be peninsula. Can someone verify this for me please? There aren't any choices either.

Physics
Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test, this gun accelerates a 1.9-kg projectile from rest to a speed of 5.1 × 103 m/s. The net force accelerating the projectile is 8.6 × 105 N. ...

Math
Scores on a marketing exam are known to be normally distribute with mean and standard deviation of 60 and 20, respectively. The syllabus suggests that the top 15% of the students will get an A in the course. What is the minimum score required to get an A?

Oceans
(I think I'm supposed to use residence time?) About 30,000 years ago, during the last glacial maximum, glaciers and ice sheets stored enough water to decrease the sea level by 120 m. Presently, there are about 3.05x106 km3 of ice contained within the Greenland glacial ...

SAT Math

SAT Math
A student states that for any positive integer n is the sum of n successive integers is always divisible by n. Which of the following can be used to disprove the student's statement? Please provide answer and how you got it! A) 1+2=3 B) 1+2+3=2x3 C) 1+2+3+4+5=3x5 D) p+(p+1...

math
John can build 7 birdhouses in 5 hours, write an equation that will allow john to calculate the time it will take to build any given number of houses. HOW MANY HOUSES in 40 hours? #2 How long will it take to build 35 houses?

math
Thank you, once again.

math
A recipe for fruit salad serves 4 people. It calls for 2 oranges and 16 grapes. You want to serve 10 people. How many oranges and how many grapes will you need?

Math
Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one first. For the ...

Chemistry
How many grams of sodium carbonate are in a sodium carbonate sample that contains 1.773x10^17 carbon atoms? How do I work this out?

Chemistry
How many protons are contained in a circular puddle of mercury that is 8.5 inches wide and .25 inches deep?

science
THANK YOU MS. SUE

science
what is another path that a scientist might follow using the data from an experiment that did not support the hypothesis .

college physics
A 52.2 kg parachutist lands moving straight downward with a speed of 3.75 m/s. If the parachutist comes to rest with constant acceleration over a distance of 0.794 m, what force does the ground exert on her?

On a certain hot summer's day, 300 people used the public swimming pool. The daily prices are \$1.75 for children and \$2.25 for adults. The recipients for admissions totaled \$613.50. How many children and how many adults swam at the public pool that day? There were ___ ...

chemistry
Calculate the volume in liters of a M copper(II) sulfate solution that contains of copper(II) sulfate . Round your answer to significant digits.

math
Bananas are \$0.59/pound. What is the constant of proportionality?

Math
A is correct in my condition

math
Line through (0,b) and (10,-5) is perpendicular to the line through (a,0) and (-6,-3). If all ordered pairs (a,b) which make the first sentence of this problem true are graphed, they all lie on a line. Find the equation of this line.

Math
THANK YOU DAMON VERY MUCH, YOU WERE VERY HELPFUL :)

Math
A number and its absolute value are equal. if you subtract 2 from the number, the new number and its absolute value are not equal.What do you do about the number?What is possible number that satisfies these conditions?

P.E
Mr. Smart is wrong, there are only 3 questions, not 5.

i don't understand

Ohhhh, ok. I understand now. Thank you Mia so much! You've been most helpful. :D Goodnight.

I was just about to reply and tell you that I subtracted when I was suppose to add but you replied first. :P So when I added them together I got 0. But you said my math was correct. I'm confused. >_<

ok, so i drew a number line and the distance I got was -5.56. Is this correct?

If the absolute value of a negative number is 2.78, what is the distance on the number line between the number and its absolute value? Explain your answer.

French
Yes, always. & no problem. :)

French
I don't see why it wouldn't be acceptable. It's an informal letter, not a business letter. if it was a formal letter you would say, " Bonjour Madame *insert name here*! But with an informal letter, it should be okay to exclude a name.

Math
If the absolute value of a negative number is 2.78, what is the distance on the number line between the number and its absolute value? Explain your answer. **I think it would be 2.78 because isn't the absolute value the distance from zero? So wouldn't it be the same? I...

math
THANK YOU SO MUCH, FOR ALL YOUR HELP. I get it know.

math
how would you get what x and k would equal?

math
find the values of the variables 32 40 96 120 112 x 144 180 k 230 how do you do this? what is the formula? Thank you

physics
A helicopter weighs 3920 newtons, caculated the force on it if it is ascending up at a rate of 2m/s squre ,what wil b force on helicopter if it is moving up with the constant speed of 4m/s .

Algebra help. ms. sue, steve
is it true?

Algebra
is it true or false?

Algebra
For all real numbers a and b, 2a • b = a^2 + b^2

Ok, thank you Ms. Sue, once again! :)

What types of problems can be solved using the greatest common factor? What types of problems can be solved using the least common multiple? Complete the explanation. *** Use the words 'same' and 'different' to complete the following sentences.*** Problems in ...

Math
CAN SOMEONE CHECK MY ANSWERS PLEASE? What types of problems can be solved using the greatest common factor? What types of problems can be solved using the least common multiple? Complete the explanation. *** Use the words 'same' and 'different' to complete the ...

Math
Zero is greater than negative 2? Yes.

Math
Enter the sum of numbers as a product of their GCF. 27 + 36 The sum of the numbers as a product of their GCF is ____ * (____ +_____).

math
Enter the sum of numbers as a product of their GCF. 27 + 36 The sum of the numbers as a product of their GCF is ____ * (____ +_____).

math
Juanita runs every seventh day and swims every fifth day. If Juanita runs and swims today, in how many days will she run and swim again on the same day? She will run and swim again in ____ days.

math
ok, thank you so much!! :)

math
35?

math
Juanita runs every seventh day and swims every fifth day. If Juanita runs and swims today, in how many days will she run and swim again on the same day?

math
Find the unit rate. Run 400 meters in 1 min 32 s. Have no idea, please help.

Physic
19

government
Which statement BEST describes the philosophy of Sir Robert Filmer? A. Kings derive their power from the consent of their subjects. B. Kings have a divine right to absolute authority over their subjects. C. Government’s principle duty is to protect the individual rights ...

Physics
An object starts from rest an under a constant acceleration has traveled a displacement of 30.5 meters when it reaches a certain final velocity. The same object starts from rest, but has an acceleration which is a factor of 3.3 times smaller than the original acceleration. If ...

government
Originalists often hold that it is incorrect to use the Equal Protection Clause of the Fourteenth Amendment to strike down laws that discriminate because? 1 it runs contrary to the 10th Amendment. 2 laws that discriminate must be said to reflect the will of the majority. 3 it ...

statistics
Four girls (say I, II, III and IV) are to rank 3 different types of cake (say A, B and C) in a blindfold test. Each girl ranks the three cakes as 1 (for the cake she likes the best), 2 and 3, and then the assigned ranks of each type of cake are summed. Assume that each girl is...

statistics
An urn contains 10 balls of which 6 are white, 3 are red and 1 is green. Two balls are drawn at random from the urn. Find the probability distribution of number of white balls drawn. Hence state the expected number of white balls one can get in such a draw.

English 11
I don't understand how did he disservice American farmers?

biology
How could you explain this statement "An ecosystem is constantly changing ,yet it remains the same."

AP Calc. AB
In general, if lim x->a m(x) does not exist and lim x->a n(x) does not exist, is it true that lim x->a [m(x)+n(x)] does not exist? How about lim x->a [m(x)*n(x)]

11 Physics
my teacher gave me this question for review and i don't know how to do it!! HELP!!! A ball is thrown upwards, from a building. It's height(h), in meters above the ground seconds(t) after being thrown is given by h(t)=-5t^2+15t+50 a) How tall is the building? (explain ...

Chemistry
A container is fabricated from steel having a thickness of 0.500 inch and an average density of 7.85 g/cm3. (You may assume that the container is cylindrical with hemispherical ends.) What is the mass of the filled container, assuming that liquid propane has a density of 0....

Science
The inner planets- Mercury, Venus, Earth and Mars- were formed by a. Supernovas b. repeated collisions of asteroid sized debris (My Answer) ****** c. masses of cold hydrogen and helium d. collisions of large galaxies

math
write 4% as a fraction form

Pre-cal
The equation of the line joining the complex numbers -5 + 4i and 7 + 2i can be expressed in the form az + b*overline{z} = 38 for some complex numbers a and b. Find the product ab. Any help?

US History
then what north american tribes fit in these categories

US History
1.In what ways did groups of natives change the environment they lived in? Use at least 3 examples of tribes in North America. 2. What social, political and economic structures did native tribes set up to help them be successful?

Calculus AB
Does it have an undefined limit.

Calculus AB
Consider the function (4)/(1-2^(1/x)) 1. Estimate the right-hand limit, lim x->0+ f(x). Back up your answer by making an analytic argument about f(x) for values of x that are close to 0 but larger than 0. 2. Estimate the left-hand limit, lim x->0- f(x). Back up your ...

algebra
identify one rational number and one irrational number that are members of the interval (-8,8)

science
When a test charge q0 = 9 nC is placed at the origin, it experiences a force of 8 times 10-4 N in the positive y direction. (c) If this force is due to a charge on the y axis at y = 3 cm, what is the value of that charge? so in a I found E to be 88888.889 in b I found the F on...

science
thanks!I also have a question about this one. When a test charge q0 = 9 nC is placed at the origin, it experiences a force of 8 times 10-4 N in the positive y direction. (c) If this force is due to a charge on the y axis at y = 3 cm, what is the value of that charge? so in a I...

science
A particle beam is made up of many protons each with a kinetic energy of 3.25times 10-15J. A proton has a mass of 1.673times 10-27kg and a charge of +1.602times 10-19C. What is the magnitude of a uniform electric field that will stop these protons in a distance of 2 m? I am ...

Math
Pete is 5.77 cm taller than Kyle. Kyle is 155.09 cm tall. How tall is Pete?

Math
Pete is 5.77 cm taller than Kyle. Kyle is 155.09 cm tall. How tall is Pete?

math
how do you do it without using a calculator?

math
Find two unit vectors that make an angle of 60° with v = <6, 8>

Us history
They started to hate America

Chemistry
Thank you. Thank you. A lot

Chemistry
No that's wrong, it's 28, divide 2, get N2

Chemistry
3.57 moles equals n, so i divide 7.9 by that to get grams per mole, which is 2.2. I divide that by 2 to get Hydrogen, but that's wrong

Chemistry
To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 5.3-L bulb, then filled it with the gas at 1.30atm and 27.0 ∘C and weighed it again. The difference in mass was 7.9g . Identify the gas. Express your answer as a ...

Chemistry
107.95 atm

Chemistry
38.37

math
Ur dumb

math
Ur mom

english
Are you sure it's d?

physics
calculate the amount of work it takes to increase a cars speed from 10mph to 30 mph and from 50mph to 60mph. Is more work required for 10mph to 30mph?

physics
a man with a 45kg mass dove 12m from a building into 0.32m of water. a)what was his kinetic energy when he hit the water? b)what average net force was exerted on him when he stopped?

physics
a 1.2 kg ball drops vertically onto the floor, hitting with a speed of 25m/s. it rebounds with an initial speed of 10m/s. a) what impulse acts on the ball during the contact? b) if the ball is in contact with the floor for 0.20 s, what is the magnitude of the average force on ...

current political issue
Explain how nurse leaders can use professional organizations to stay aware of political actions in the nursing and health care industry and the importance of doing so

Political Issue
Select a professional organization in the nursing industry. Researching a current political issue addressed through the organization.

physics
a 60g golf ball leaves the face of the club with a velocity of 75m/s. if the club exerted an average force of 3.0x10to the 4th N, what was the time of impact between the club and the ball?

physics
a 50kg box is pushed up a 30 degree plane which is 100m long. what is the speed of the box after being pushed the 100m? Mk=0.1

Chemistry
how would you prepare 250 ml of 0.69m al2(so4)3 solution from a 2.0 al2(so4)3 stock solution

Intro to computers
The command prompt found on Windows 7 and Windows 8 is very similar to the interface of what past operating system?