Sunday
April 20, 2014

Posts by Sam


Total # Posts: 3,849

CHEMISTY HELP!!!
Thank you so much!

CHEMISTY HELP!!!
A professor found that there are 109 drops of glacial acetic acid in 2.00 mL. Calculate the number of drops of glacial acetic acid, HC2H3O2 required to make 155 ml of 0.25 M acetic acid solution Can anyone walk me through the steps and provide an answer. Ive tried everything ...

Math
A college basket ball player makes 80% of her free throws. Suppose this probability is the same for each free throw she attempts. The probability that she makes all of her first four free throws and then misses her fifth attempt this season is

Math
Draw Base Ten Blocks to show the number five hundred fifteen.

Math
Do the coursework yourself you lazy bum.

accounting
What are the ethical issues? Who are the stakeholders? (at least 3) How is each stakeholder you listed in #2 affected? (Be specific). What would you do? Explain

accounting
Bill has just started working for a major grocery store as a check-out clerk. Mason is training him in the duties of the new position. At the end of the first day, Bill and Mason are counting the cash in their drawer and reconciling cash receipts to the cash register total. Ma...

algebra 1b
it was wrong the first one

algebra 1b
(x7 + x4 + x)(x3 - 1) can u help me with this one 2

algebra 1b
thanks :)

algebra 1b
Use the table below to find the products of the two polynomials. Enter your answer in descending order in the box below. Enter exponents using the caret ( ^ ). For example, you would enter as 4x^2. Do not enter spaces in your answer. (x3 + 2x2 - 2)(x3 - 3x + 3)how do you do this?

Linguistic - Japanese
What are the sentence structure rules for the Japanese language? I know you have the sentence -> (noun phrase) (verb phrase)

Chemistry
Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 50. cm3. If the combustion of this mixture releases 990. J of energy, to what volume will the gases expand against a constant pressure of 645 torr if all the energy of combustion i...

Chemistry
As a system increases in volume, it absorbs 52.5 J of energy in the form of heat from the surroundings. The piston is working against a pressure of 0.500 atm. The final volume of the system is 58.0 L. What was the initial volume of the system if the internal energy of the syst...

Math
9,000

algebra
need help dont exactly understand the question: Factor and check by Multiplying 6x + 10y -2

Chemistry
So is the first amino acid the N-Terminus and the last amino acid the C-Terminus?

Chemistry
Can you draw a dipeptide and show all the functional groups, atoms, and bonds, any full charges on atoms, and the "R" group. Also, show N and C terminus? It would really help if you can show me pictorially.. thanks

chem
a volume of 10.0 ml of a 0.00450 M solution of Cl- ions are reacted with 0.500 M solution of AgNO3.What is the maximum mass of AgCl that precipitates?

environmental science
I need some help coming up with ideas for this topic: What are some pros to allowing private logging companies to thin federally owned forests? Cons?

physics
A ferry is crossing a river. If the ferry is headed due North with speed of 2.5m/s relative to the water and the river's velocity is 3 m/s to the east, what will the boat's velocity be relative to Earth?

chemistry
calculate the weight of copper in the Cu(NH3)4SO4 H20 you made. Mass of Cu(NH3)4SO4 H20 = 0.1140g

chemistry
Antimony forms 2 chlorides having widely different properties. One of the chlorides is a solid that melts at 73*C and contains 46.5% chlorine by mass. The other is a liquid that boils at 140*C and contains 59.3% chlorine by mass. Show how these results illustrate the low of mu...

chemistry
Finding molarity and molality(best answer)? An aqueous solution is prepared by diluting 3.30 mL acetone,(d= 0.789g/mL) with water to a final volume of 75.0 mL. The density of the solution is 0.993 g/mL. What is the molarity, molality and mole fraction of acetone in this solution?

Physics
Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless string, frictionless ...

Physics
Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless string, frictionless ...

physics
Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless string, frictionless ...

physics
46

physics
Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless string, frictionless ...

Physics
A skateboarder shoots off a ramp with a velocity of 6.7 m/s, directed at an angle of 53° above the horizontal. The end of the ramp is 1.0 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the origin the point o...

website
i need a wedsite to help me dengin a moldol of a simple machine for a proget any ideas

chemistry
your balanced equation is it CaCO3---------->CaO+CO2

physics
An object moving on the x axis with a constant acceleration increases its x coordinate by 161 m in a time of 12.5 s and has a velocity of 20 m/s at the end of this time. Determine the acceleration of the object during this motion. Answer in units of m/s2.

physics
A car starts from rest and accelerates for 6.5 s with an acceleration of 3.6 m/s2. How far does it travel? Answer in units of m

statistics
Consider a hypothetical population of dogs in which there are four possible weights, all of which are equally likely: 42, 48, 52, or 58 pounds. If a sample of size n=2 is drawn from this population, what is the sampling distribution of the total weight of the two dogs selected...

trig
Find all solutions to the equation 2cos(2x) = x + 1, correct to 4 decimal places.

Physics
On a hot summer day in the state of Washington while kayaking, I saw several swimmers jump from a railroad bridge into the Snohomish River below. The swimmers stepped off the bridge, and I estimated that they hit the water 1.5s later. a) How high was the bridge? b) How fast we...

Home Ec.
What is Fam & Cons ?

finance
Asset-liability management is the term where the maturity of an asset is similar to the time that the liability expires. Which of the following is not good asset-liability matching? -Brand new quality car financed by a 5-year loan. -Retirement fund for a 35-year old containing...

math
You are driving home from college steadily at 95km/hour for 130km. It begins to rain and you slow to 65km/hour. You arrive home after driving 3 hours and 20 minutes. How far is your hometown from college?

Math
A regular hexagon has six sides of equal length. If each side of a hexagon is 25mm, what is the perimeter?

Geometry
Given: angle ABD is a right angle , angle CBE is a right angle. Prove: angle ABC is congruent angle DBE

physics
It takes you 7.6 min to walk with an average velocity of 2.5 m/s to the north from the bus stop to the museum entrance. How far did you walk? Answer in units of m What is your direction? (multiple choice) 1. West 2. North 3. South 4. East

physics
it says i'm within 10 percent but there might be a round off error.

physics
A 1,440-N crate is being pushed across a level floor at a constant speed by a force of 210 N at an angle of 20.0° below the horizontal, as shown in the figure (a) below (a) What is the coefficient of kinetic friction between the crate and the floor

physics
Objects of masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The object m1 is held at rest on the floor, and m2 rests on a fixed incline of θ = 39.0°. The objects are released from rest,...

physics
tension isn't working for some reason. are you supposed to add or subtract m1 and m2 in the first part of that equation instead of multiply?

Math
A basketball team won 28 more games than they lost. They won 35 games, how many games did they play? Please help, Thanks!

Math
The basketball team won 28 more games than they lost. If they won 35 games, how many games did they play? Thanks

physics
It two objects are thrown off a tall building and one is three times the mass of the other, do they hit the ground at the same time?

physics
a speeder is going at a constant speed of 20m/s when a police car accelerates from rest at a rate of 4.5,/ssquared to catch them. How long did it take for the officer to reach the speeding car?

geometry
Lara wrote the statements shown in the chart. Statement One: If two lines intersect, then they intersect at exactly one point Statement Two: In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the length of the legs. Which opti...

geometry
Martin drew a pair of perpendicular lines and a pair of parallel lines. Which of these statements best compares the pairs of perpendicular and parallel lines? Answer A: Perpendicular and parallel lines always have a common endpoint. B: Perpendicular and parallel lines have the...

physics
A wooden crate weighs 780lb.What force is needed to start the crate sliding on a wooden floor when the coefficient of starting friction is 0.40?

Physics
At time t = 0, a projectile is launched from ground level. At t = 2.00 s, it is displaced d = 57 m horizontally and h = 73 m vertically above the launch point. At the instant it reaches its maximum height above ground level, what is its horizontal displacement D from the launc...

Geometry
Three consecutive vertices of a parallelogram are points (2,4) (0,0) and (6,0). What is the fourth vertice point?

geometry
The shortest side of two polygons have lenghts in the ratio 2:5.The perimeter of the smallest polygon is 20. what is the perimeter of the large polygon?

chem
7.82 SILVER(I) NITRATE REACT WITH POTASSIUM CHLORIDE FIND THE BALANCED CHEMICAL REACTION USING THE GIVEN MASS FIND THE MASS OF THE REAGENT. ALSO CALCULATE THE MASSES OF THE PRODOUCT FORMED IN THE REACTION

Chemistry
6000 millimeters equal how many meters?

Algebra
linear

math
17 1/4

statistics
In a certain college, 55% of the students are women. Suppose, we take a sample of two students. Use a probability tree to find the probability that at least one of the two students is a woman.

math
Determine the inlier range for FPULS?

math help
Find the 96th percentile of MPULS?

statistics math
two un biasedtetrahedral dice each have four faces number 1,2,3 and 4. the two dices are thrown together and the sum of the numbers on the faceson which they land is noted. Find the expected number of occasions on which the sum is 7 or more when the dice are thrown together 20...

stats help
find the number of road fatalies attributed to impaired drivivng in ontario for the years 1975, 1985, 1995. i couldn't find the answer for it, it was n't on google. if you can find asite that has this, that would be a big help. thank you soo much for your kind help!!!

stats help
find the number of road fatalies attributed to impaired drivivng in ontario for the years 1975, 1985, 1995. i couldn't find the answer for it, it was n't on google. if you can find asite that has this, that would be a big help. thank you soo much for your kind help!!!

statshelp
find the number of road fatalies attributed to impaired drivivng in ontario for the years 1975, 1985, 1995. i couldn't find the answer for it, it was n't on google. if you can find asite that has this, that would be a big help. thank you soo much for your kind help!!!

early childhood
D.

Maths
Can you tell me the bearing of P from H?

Maths
Thanks.

Maths
Thanks. Could you tell me the angles for H and P R= 90 H= ? p = ?

Maths
A rock, R, is 40 km from a harbour, H, on a bearing of 040°. A port, P, is 30 km from R on a bearing of 130°. Draw a sketch showing the points H, R and P and work out the size of angle HRP.

Physchology
Think about a you psychological issue of interest. How would you approach it from a scientific perspective? can you provide me a list of issues so I can research them, and also whats a scientific persepective

Sociology
Question: Using the sociological perspectives: functionalism, conflict, symbolic interactionism and feminism, show how Facebook has made an impact on today's technologically-advanced society. I need someone to help me threw this question, im so confused dont know to start it

Maths
Anyone?

Maths
A rock, R, is 40 km from a harbour, H, on a bearing of 040°. A port, P, is 30 km from R on a bearing of 130°. Draw a sketch showing the points H, R and P and work out the size of angle HRP.

brain teaser
Turn one light switch on, wait a few minutes, then turn it off and turn another light switch on. Go into the room and feel the light bulbs. The one that's still warm is connected to the switch that you first turned on, the one that is on was the second switch you turned on...

PreCal
A triangular prism has vertices at A(2, 0, 0), B(2, 1, 3), C(2, 2, 0), D(0, 0, 0), E(0, 1, 3), and F(0, 2, 0). Which image point has the coordinates (1, 4, 3) after a translation using the vector 1, 2, 3? What point represents a reflection of B over the xy-plane? B'( )

Math
Find a number that results in a greater number when it is added to 100 than when it is multiplied by 100?

Math
Find a number that results in a greater number when it is added to 00 than when it is multiplied by 100?

trigonometry
1)find the exact value indicated trigonometric function of θ, if θ is the angle is standard position whose terminal side contains the given point. (-2 ,√2); Find cos θ 2) find the length of the arc intercepted by a central angle of 35degree 28' in a ci...

Business Finance - Check/Help
Smith Manufacturing is considering the sale of two non depreciable assets, A and B. Asset A was purchased for $2000 and will be sold today for $2250. Asset B was purchased for $30,000 and will be sold today for $35000. The firm is subject to a 40% tax rate on capital gains. 1....

Biology
1, 2, 6, 11 are wrong answers !!

Chemistry
Calculate the heat in calories needed to melt 14.0g of ice at 0C .

Chemistry
I have another question about this problem. I know that dT is (T(final)-T(initial)). is the T(final)=23C or is it 48C? since it's from "48C to 23C", shouldn't the final be 23C? and the initial 48C?

Chemistry
calories given off when 85g of water cools from 48C to 23C. Express your answer using two significant figures. I know the answer is 2100 cal, but I just need to know why the answer is a positive value instead of negative, when it is supposed to be cooling down.

math
1,600 and 2,000

math
Nora has 1,555 songs on her computer. She rounds this number to the nearest ten, to the nearest hundred and the nearest thousand. She gets three diffrent rounded numbers. What are the numbers? Why

math
Norar compute three diffrent answers?r has 1,555 songs on her computer. S are therehe rounds this number to the nearest ten, to the nearest hundred and the nearest thousand. She gets three diffrent rounded numbers. What are the numbers? Why

English
How do i find the theme of a book/movie?

Math
A video recorder costs $259 and Ann pays 25 down on da purchase price. If Ann makes 6 equal payments after da down payment, wat must she pay each month?

social studies
you have been SOOOO much help for me my worst subject is History! and you Ms. Sue have been a life saver!

social studies
put it to the 3rd answer*

social studies
you have been a ton of help, but the reason colonists needs 3, and i only 2..... should i just erase land and a place to live off my 1st answer and but it to the 3rd answer?

social studies
and then i am really stuck on the reasons England wanted colonies in the Americas, and the reasons colonists wanted to come to the Americas

social studies
ok thanks

social studies
ok thanks :) you really helped, i might need more help soon

social studies
*key people OF* sorry bad typing

social studies
but what were the key people oh the Roanoke colony? cause on my U.S History worksheet it asks me describe Roanoke, and name the key people and describe them.....

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