# Posts by ANONYMOUS

Total # Posts: 109,564

science
why displacement uns uitable for determine t v volume of charcoal

math
Use the formula to solve for c. Choose the right answer. Amount Financed (m) = \$275 Number of Payments per year (y) = 12 Number of Payments (n) = 18 APR (I) = 12%

Physics pls help
A ball with massm1=4.0 kgam is traveling to the right with the velocityv1=6.0m/s another ball with mass m2=2.0kh is traveling to the left with velocity -4.0m/s find the final velocity of the ball after the collision Find the loss in Kenetic energy Find the impulses imported to...

chemistry
Nitrogen dioxide reacts with water droplets in the atmosphere to produce nitric acid and nitrous acid.

Math
Population in a city was 8,60,000. In the next year, if it is increased by 14000 more one tenth of the previous population, the present population in the city?

Math
241×107

maths sir steve help me reiny
X=at ² and y =2 at are parametric equations of

ap physics
Two 25.0 g spheres are hanging from lightweight strings that are each 35.0 cm in length. Each has the same charge. They repel each other and make an angle of 5.00? to the vertical. What is the magnitude of the charge on each sphere?

AP physics
ah never mind i mixed up p wiht power instead of resistivity.

AP physics
What is the resistance of a copper wire, diameter of 1.50mm and length of 25.0 m? i got R=pl/A R=p(25m)/(3.14*(.00075^2)) how ever i found the answers online and they give me this (1.68*10^-8)(25.0)/(3.14*(.00075^2))

Science 8.4
Which arrangement below lists elements of the same group, in order, from those having least protons to those having the most protons? o,s,se,te na,s,al,cl o,n,b,ki rb,k,na,li

math
(coty sec^2 y-coty)/(siny tany+cosy)

Social Studies
The correct answers are D D C

Science
How many molecules of Br2 react with 1.11 x 10^20 molecules of F2

Math
If there is a laws of 40 students and only 85% of the class passed how many passed the test

physics
A 0.054-kg pet lab mouse sits on a 0.35-kg air-track cart, as shown in (Figure 1) . The cart is at rest, as is a second cart with a mass of 0.25 kg. The lab mouse now jumps to the second cart. After the jump, the 0.35-kg cart has a speed of v1=0.80m/s. What is the speed v2 of...

math
In a recent student government election, the ratio of students who voted for the winner to all the students who voted was 0.68. The number of students who voted was 75. How many votes did the winner get?

Calculus
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y=x^2,y=1; about y=7

Marcques
Whats the product of 1 3/5 and 8

chem
Which equation shows a reaction that will occur at room temperature and pressure? A Br2(aq) + 2NaCl (aq) Ã¢â€ â€™ 2NaBr(aq) + Cl 2(aq) B Br2(aq) + 2NaI(aq) Ã¢â€ â€™ 2NaBr(aq) + I2(aq) C I2(...

Calculus
The position at time t of an insect crawling along the x-axis is given by x(t) = t^3 - 3t^2 - 9t + 4. What is the maximum velocity on the closed interval 0 <= t <= 2?

arithmatic series
Could someone show me the difference between arithmetic sequence and series

Bio
I'm not sure weather it's A or D @Ms. Sue

Bio
The thyroid ___ A. controls the endocrine system. B. Regulates the metabolism. C. controls sexual characteristics. D. regulates metabolism of glucose Please help I'm missing part of my book

Bio
Blonde hair (bb) is a recessive trait and brown hair (Bb) is dominant. If both parents have brown hair, what must be true if one of their children have blonde hair? A. Both parents must be hybrid with regard to hair color (Bb) B. Both parents have two brown hair genes (BB) C. ...

math NEED ASAP
the difference between combination and permutation

Bio
Which of the following is true? A. In the human female, ovulation occurs in nine-month cycles. B. Egg cells develop in a structure called the uterus and are released at the rate of one a month. C. Spermatogenesis is the process of fertilization of the egg cell. D. The fluid in...

Biology
Chemicals which control the growth and function of organs are ____ A. chromosomes B. hormones C. glucose D. endocrines

Biology
Blonde hair (bb) is a recessive trait and brown hair (Bb) is dominant. If both parents have brown hair, what must be true if one of their children have blonde hair? A. Both parents must be hybrid with regard to hair color (Bb) B. Both parents have two brown hair genes (BB) C. ...

Biology
Which of the following is true? A. In the human female, ovulation occurs in nine-month cycles. B. Egg cells develop in a structure called the uterus and are released at the rate of one a month. C. Spermatogenesis is the process of fertilization of the egg cell. D. The fluid in...

Biology
The thyroid ___ A. controls the endocrine system. B. Regulates the metabolism. C. controls sexual characteristics. D. regulates metabolism of glucose.

Chemistry
Which of the following is true? A. In the human female, ovulation occurs in nine-month cycles. B. Egg cells develop in a structure called the uterus and are released at the rate of one a month. C. Spermatogenesis is the process of fertilization of the egg cell. D. The fluid in...

Chemistry
Consider the following electrochemical cell: Al(s) | Al^3+(aq)(0.155 M) || H^(aq) (0.00233 M), MnO4^-(aq)(0.0377 M), Mn^2+(aq) (0.0168 M) | C (graphite) Write a balanced equation for the redox reaction taking place in this cell. i am having trouble with the cathode half ...

Math
1/4 of a dozen eggs equal what

Ethics in health care
Why does the Philippines encourage the migration of nurses and other health care professionals? Why does Cuba send many of its health care professionals to other countries? Are the reasons in those two countries similar or different? Help

Math
Wes has 20 feet of garden fencing. If he wants the smallest side of his garden to be 3 feet or longer, what possible rectangles can he make?

Chemistry
Which statement about this reaction is FALSE? AgNO3 + NaCl -> AgCl + NaNO3 A. This is one kind of metathesis reaction, where molecules exchange atoms. B. This reaction produces a gas. C. This is a precipitation reaction. D. The equation is balanced

S.S.
Is it A toy becomes popular and increasingly scarce

maths (probability)
1) A basket contains 3 red and 2 yellow apples. Two apples are chosen at random. Find the following probabilities: a) P(one red, one yellow) b) P(at least one red) 2) A card is drawn from a standard deck. Find the following probabilities: a) P(a jack or a king) b) P(a jack or ...

Chemistry
A buffer contains the weak acid HA abd its conjugated base A-. The weak acid has a Ka of 1.51 x10^-5 and the buffer has a pH of 4.25. Which statement is true about the relative concentrations of HA and A- in the buffer? A) [HA]>[A-] B) [HA]<[A-] C) [HA] = [A-]

Physics
Your argument is correct but do you really mean 0.5 cm? If so then work is 50 N * .005 meters.

pre calc
If theta is zero then cos(?) is one and sin(?)is zero

statistical reasoning
One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed. Colorblind Not Colorblind Total Male 7 53 60 Female 1 39 40 Total 8 92 100 State the null and alternative...

statistical reasoning
One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed. Colorblind Not Colorblind Total Male 8 52 60 Female 2 38 40 Total 10 90 100 Find the value of the X2 ...

Basic Geometry
Someone help me check my answers Dakota built a wall with bricks like this one: A=5 B=8 Look at Dakotaâ€™s wall: What is the length of the side of the brick labeled a? ____5__ inches______ What is the length of the side of the brick labeled b? ____8 ...

US History
I meant to say c?

US History
During the 1812 war, the Americans were most successful on a) sea b) Lake Champlain and Lake Erie c) on land

Math - Calc
Sketch the region R bounded by y=x+6, y=x^3, and 2y+x=0 then find its area. I know sketching is kind of difficult here, but I would appreciate any help on how to approach this problem. Thanks

Algebra
A biologist studied the populations of black bear and brown bears over a 10-year period. The biologist modeled the populations, in thousands, with the following polynomials where x is time, in years. black bears: 2.3x^2 - 5.6x + 2.3 brown bears: 2.4x^2 + 7.2x + 0.97 What ...

Calculus indefinite integrals
Evaluate the following indefinite integrals using substitution a) ? xsqrt(x^2-7) dx b) ? x^(2/3)(1/5x^(5/3)+2)^4 dx

Calculus
x(x^2-2x+1) -1(x^2-2x+1) = x^3 - 2x^2 + x - x^2 + 2x - 1 = (x^3 + 3x)odd ( -3x^2 -1) even the odd part will give zero (+ on one side of x = 0 and - on the other) so -x^3 - x = - (x^3+x)so (x^3+x) at -1 - at +1 -1-1 - 1-1 = -4

SS
Which of these people is part of the labor force. A an eighth grader with a paper route B a retired sales person. C a full-time college student****** D a auto mechanic

SS
Thanks

SS
Which of the following is most likely to happen if many families in the community stop spending as much money at the local grocery store A farmers would produce more cops to increase supply B the grocery store would lay off several employees C the grocery store when best and ...

life orientation
I DONT KNOW THA WHY IVE SEARCHED FOR IT

Math
13 2/3 INTO AN IMPROPER FRACTION 41/3 DIVIDED BY 2/3 DO THE KEEP, CHANGE ,FLIP 41/3*3/2=41/2 CHANGE TO A MIXED NUMBER. BY DIVIDING 41 TO 2 =20 1/2 ALSO IN DECIMAL FORM 20.5

math
Can someone help me and explain what (10P4-) is pls?

math 105
Suppose the scores of students on an exam are normally distributed with a mean of 501 and a standard deviation of 72. Then approximately 99.7% of the exam scores lie between the integers and such that the mean is halfway between these two integers. Use the empirical rule.

Social
Does having an unusual name, such as Chastity, Englebert or Moon unit, have an effect on how a child develops? The results of some previous studies agrees with the commonsense idea that such as name could cause a child to be rejected or ridiculed and thus could have a negative...

physics
frequency is proportional to square root of k so to double frequency you need 4 times the original k

Social Studies 1
thank you Ms.sue

Social Studies 1
3.C ?

Social Studies 1
Geographers want to know how people living in hazard-phone areas are affected by natural disasters such as floods, hurricanes, tornadoes, and earthquakes. Although the number of natural disasters has remained relatively constant over the years- thirty per year throughout the ...

Biology
What is an artery

math
For every 8 squirrels that Travis sees in his backyard, six are dining at the bird feeder. Travis saw 28 squirrels today. About how many were eating birdseed?

economics
so for 7 its c? since something created by an individual inventor does not have the government involved?

economics
7. Which situation is more likely to occur in a market economy than a command economy? A. People line up for cheap but scarce products. B. A student is guaranteed a job out of college. C. An inventor designs and produces a new type of car. D. A committee chooses which farms ...

math
The graph of the equation 8x–5y=14 passes through a point with an abscissa of 1.2. Find the ordinate of the point. I got .8 repeating but my teacher said that it was wrong. I then got 9.6 and it was also wrong. what am I doing wrong and can you put the answer with the ...

chemistry
Why can't you form an acid salt from a monoprotic acid?

physics
a ball of mass 0.220-kg that is moving with a speed of 5.5

algebra
I need to write an inequality with the following information;I have a summer business selling book markers. They cost .75 to make and I'm selling them at \$4.00 each. Write an inequality with variables showing earnings with the sale price and the number sold. I'm so ...

Ethics
Should people from wealthy countries be allowed to obtain organ transplants from individuals in developing countries? Help?

Social studies
thank you

Social studies
which of the following statements about World War 1 would be most difficult to prove and disprove a. American casualties were more numerous than in any other war. b. it was the first war in which the opposing sides used airplanes c. the U.S government spent more on armaments ...

Social studies

Social studies
2.E 3.B 4.E

Social studies
Does having an unusual name, such as Chastity, Englebert or Moon unit, have an effect on how a child develops? The results of some previous studies agrees with the commonsense idea that such as name could cause a child to be rejected or ridiculed and thus could have a negative...

Precalculus
f(y)=-1/5y^4 What is the power function and constant of variation?

If the abesolute pressur at the bottom of a fresh water pond is 2.313*10^5 PA,what will be the depth of the pond?

french 1
true

History
Thank you

History
Explain the effects of World War II, on both the United States and on Georgia. so far I've got, the economy declined,

Science
When the sun, Earth, and moon are in a line

English

English

English

English
What's Karen doing over there. She is supposed to be studying, but it looks like she is playing Andrew's game.

Algebra
The answer is 1.8816 * 10^25

Algebra
Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5.88*10^12 miles. Suppose a star is 3.2*10^12 light-years from Earth. In scientific notation, approximately how many miles is it? a) 1.88 * 10...

physics
2. What value did you calculate for the index of refraction of the glass block in Part 2? How does your value compare to the accepted value of 1.53? Calculate the percentage error. Different materials have distinct indexes of refraction. Explain how you might identify a ...

World history
Thanks Ms.Sue

World history
Am i right?

World history
Wait i think the answer is C

World history
I think its A

World history
Need help ASAP What was one result of Hitlers invasion of the soviet union. A: Germany gained access to soviet factory's and farms. B: Stalin fled to the soviet union. C: Germany was able to take control of Leningrad. D: Churchill and Stalin became allies

Social studies