Wednesday

July 23, 2014

July 23, 2014

Total # Posts: 689

**math**

what is the slope and y-intercept for y=-2/3x -4.3

**physics (Newton"s law of gravitation)**

Please, can someone help me with this? A neutron star and a black hole are 2.400e+12 m from each other at a certain point in their orbit. The neutron star has a mass of 2.78×1030 kg and the black hole has a mass of 9.94×1030 kg. What is the magnitude of the gravita...

**Physics (Electric fields and Coulomb's Law)**

I need help with this question please. An ion harvester is scouring deep space for isolated xenon (Xe+) ions. A xenon ion is singly ionized, and has a charge of +e. If the field meter reads 0.000000202 N/C, how far away is it from the ion? _________ m Thank you

**Physics (Electric charge for charged rods)**

I need help with this question, please. What is the direction of the force between (a) two particles whose charges are the same sign and (b) two particles of opposite sign? (c) What happens to the magnitude of the force when the distance between two particles is increased? Ans...

**physics (Newton's law of gravitation)**

Can anyone please help me with this question? I am really confused. A neutron star and a black hole are 2.400e+12 m from each other at a certain point in their orbit. The neutron star has a mass of 2.78×1030 kg and the black hole has a mass of 9.94×1030 kg. What is...

**Physics (G and g)**

Please, I need help with this problem. I would really appreciate it. The top of Mt. Everest is 8850 m above sea level. Assume that sea level is at the average Earth radius of 6.38×106 m. What is the magnitude of the gravitational acceleration at the top of Mt. Everest? T...

**Electric fields and Coulomb's law**

Please, I need help with this question. An ion harvester is scouring deep space for isolated xenon (Xe+) ions. A xenon ion is singly ionized, and has a charge of +e. If the field meter reads 0.000000202 N/C, how far away is it from the ion? Answer:__________ m Thank you.

**Electric fields and Coulomb's law**

Can anybody please help me with this question? Two friends are playing a version of proton golf where the hole is marked by a single proton. The first friend reads his meter, and declares he has a field strength of 27.5 N/C. The second friend looks at her meter and realizes sh...

**Electric charge and Coulomb's Law**

Can anyone help me explain this problem? Your help is appreciate it. You are given an apple and an orange. The apple has a net charge of +3×10−17 C. The orange has a net charge of −3×10−17 C. With only this information, can you determine which one...

**physics (Newton"s law of gravitation)**

Could anyone please help me with this problem? I would really appreciate it. The top of Mt. Everest is 8850 m above sea level. Assume that sea level is at the average Earth radius of 6.38×106 m. What is the magnitude of the gravitational acceleration at the top of Mt. Ev...

**Uof Phoenix**

6x=12

**one more**

thanks so much! what about 4xsquared + 4x - 3= 0

**math (Reiny please)**

how would i do these problems: 6. xsquared + 2x -7 =0 7. 6xsquared - 2x -1 = 0

**science**

can you simply explain what happens to ice that breaks off a glacier that lands in the water

**physics (Newton's Laws)**

Please help, A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree, because you may get stuck as well. Instead you set up a pulley system. A rope (consider it massless) runs from the seat you sit on over an ideal pulley...

**physics (Newton's Laws)**

One end of a spring is attached firmly to a wall, and a block is attached to the other end. When the spring is fully compressed, it exerts a force F on the block, and when the spring is fully extended, the force it exerts on the block is −F. What is the force of the spri...

**physics (Newton's Laws)**

If an acrobat who weighs 800 N is clinging to a vertical pole using only his hands, neither moving up nor down, can we determine the coefficient of static friction between his hands and the pole? Explain your answer. Please, help. Thank you

**Probability**

2/3 people at a spa are there to lose weight. There are 10 people there and I approach one. What is the probability that the person is there to lose weight? The random variables are based on 10 rolls of a dice. 1(1)+ 2(2)+ 3(1)+ 4(2)+ 5(1)+ 6(3) {1=4=3=8=1=18}= 35 Please help ...

**math**

I have two questions 1.) 2750 grams= lbs 2.)2km= yards and in my book I have a completely different answer. Thank you

**Physics (Velocity in two dimensions)**

Please explain, A clown in a circus is about to be shot out of a cannon with a muzzle velocity of 15.2 m/s, aimed at 52.7° above the horizontal. How far away should his fellow clowns position a net to ensure that he lands unscathed? The net is at the same height as the mou...

**Physics (Velocity in two dimensions)**

Please help, The displacement vector for a 15.0 second interval of a jet airplane's flight is (3850, −2430) m. (a) What is the magnitude of the average velocity? (b) At what angle, measured from the positive x axis, did the airplane fly during this time interval? Exp...

**Physics (Velocity in two dimensions)**

Please help: The displacement vector for a 15.0 second interval of a jet airplane's flight is (3850, −2430) m. (a) What is the magnitude of the average velocity? (b) At what angle, measured from the positive x axis, did the airplane fly during this time interval? Exp...

**math **

a volume is 864 what is the length width and height if length and width are the same and height is half of width and length

**Physics (vectors)**

I am stuck with this question.Please help. I have a triangle that is not a right triangle with sides A, B, and C.(no values).The arrow's heads of A and B are joined and the arrow's head of C is in the tail of B. If the resultant is A,what is the vector equation, and wh...

**Physics (vectors)**

Please help me with this question. I have a triangle that is not a right triangle with sides A, B, and C.(no values).The arrow's heads of A and B are joined and the arrow's head of C is in the tail of B. How do you find the resultant, the vector equation, and the direc...

**Physics (vectors)**

Please help me with this question about vectors. Thanks. If you are given a graph with a vector starting at the point (1,-1)and the arrow goes to the point (0,-4). What is the vector in rectangular coordinate? I answered (0,-3), but the coordinate for x is wrong and I can'...

**Physics (vectors)**

Could you please help me with this exercise? Thanks. Adding and substracting vectors Solve for the unknown variables: (a) (a, b) + (3, 0) = (6, 7) (b) (11, c) + (d, 5) = (-12, −3) (c) (5, 5) + (e, 4) = (2, f) (d) (-1, −3) − (5, g) = (h, 2)

**Physics (vectors)**

Could you please help me with this exercise? Thanks. Adding and substracting vectors Solve for the unknown variables: (a) (a, b) + (3, 0) = (6, 7) (b) (11, c) + (d, 5) = (-12, −3) (c) (5, 5) + (e, 4) = (2, f) (d) (-1, −3) − (5, g) = (h, 2)

**Chemistry**

Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.200 M HClO(aq) with 0.200 M KOH(aq). The ionization constant for HClO can be found here. A. Before any addition of KOH B. After addition of 25.0 mL of KOH C. After 30.0 mL of KOH D. After 50.0 mL...

**algebra**

five-sixths of a number is -60. What is the number?

**geometry**

the diagonals of a rectangle are 8 units long and intersect at a 60 degree angle. find the dimensions of the rectangle

**Physics**

A watermelon cannon fires a watermelon vertically up into the air at a velocity of +11.5 m/s, starting from an initial position 1.20 meters above the ground. When the watermelon reaches the peak of its flight, what is (a) its velocity, (b) its acceleration, (c) the elapsed tim...

**Math**

Marty ate 1/4 of a pizza. Rob ate 1/5 of a pizza . How could rob eaten more pizza than Marty?

**Physics **

Your friend of mass 150 can just barely float in fresh water. Find her volume.

**Health**

What is the correlation on how society defines health and how they pursue health

**Health**

How does society define health

**LAW**

Jana finds a home priced at $180,000 that she would like to buy. She is concerned, however, about her ability to get a loan. Accordingly, she and the seller reach agreement that Jana will buy the home if she can get a loan for $180,000 within 45 days. What type of condition is...

**physics..please help me due in a couple of mins.!!**

i went to other post on this an it redirected me to this one...if you dont mind i really would appreciate if you re-answer the question

**physics..please help me due in a couple of mins.!!**

do you have a answer or formula to this bobpursley?

**physics..please help me due in a couple of mins.!!**

Two identical guitar strings are stretched with the same tension between supports that are not the same distance apart. The fundamental frequency of the higher-pitched string is 400Hz, and the speed of transverse waves in both wires is 200 m/s. How much longer is the lower-pit...

**Buisness Law**

In Reno v. Condon, Attorney General of South Carolina, the case in the book addressing whether Congress could prohibit states from selling personal information of citizens without consent, the U.S. Supreme Court ruled that: a. The Driver’s Privacy Protection Act was a pro...

**Economics**

The marginal revenue product (MRP) of land declines as more land is brought into production because: A.land is a "free and nonreproducible gift of nature." B.of diminishing returns. C.land rent has no incentive function. D.the supply of land is fixed.

**Simmons**

How is guilt a powerful force in human life

**Simmons**

How is guilt a powerful force in human life

**algerbra**

what is the right way to set up a formula in finances for a simple interest word problem: P=6853 down pymt=853 monthly pymt = 163.00 per month for 48 months.

**College Math**

answer is b

**physics**

A 50 kg diver leaps off the 20 meter diving board with a velocity of 5 m/s. What is his kinetic energy just before hitting the water?

**algebra**

A grandmother is looking for a plan to finance her new grandchild’s college education. She has $25,000 to invest. Search the internet and locate a long-range investment plan, CD, Savings Bond, etc, for the grandmother. The plan is to earn compound interest. Calculate the ...

**algebra**

if x% of y = 15 then y% of x = what?

**Calculus**

Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y=3(x^(1/2)) , y=5 and 2y+3x=6

**physics**

standing on the ground, you throw a 0.55 kg lunch bag at a friend, you manage to throw the bag straight up (vertically) using 50 J of energy to throw it there is also a crosswind of 0.5 m/s. How high will the bag travel before all of its kinetic energy is converted into gravit...

**Math**

1.describe the meaning of the number -.1 in the formula, in terms of its meaning in relation to the profit.

**physics**

If the height of the water slide in the figure is h = 2.8 m and the person's initial speed at point A is 0.47 m/s, what is the new horizontal distance L between the base of the slide and the splashdown point of the person?

**math/algebra**

How do I find the quotient of 5/22 & 6/11?

**plaiance **

what is an algebric expression for 5 less than 34

**math**

50000

**Math riddles for 4th grade**

divide me by 10 and 3 remians. a square number my first digit be. My second digit is the product of1 and 3. All together I am greater than 50.

**physical science**

If a 2 kg block has a gravitional potential energy of 58.5 J, how high is it above the floor?

**math/science**

If a bee flies 6km/h how long will it take to reach a flower that is 1.2 km from the hive?

**chemistry**

the distance between new york and san francisco is 4741000m. Now that may sound impressive but to put all those digits on a car odometer is slightly inconvenient. in this case kilometers are a better choice for measuring distance. change the distance to kilometers

**Phyichs**

please help me

**Phyichs**

WHAT IS THE DIRECTION OF A NULL VECTOR ?

**english**

oh okay. for my anglish project were going over the "animal farm" book. and we have to create a one verse anthem. "Come up with an anthem (at least one verse) and a tune that it can be sung to." - his words

**english**

can someone please help me on making an anthem for a farm? thank you!

**Physics**

A person throws a rock straight up into the air. At the moment it leaves the person's hand it is going 76 mph. When the rock reaches its peak, how fast is it going and what is the magnitude and direction of its acceleration? Ignore air drag.

**Math**

What is the area of a parallelogram with side- 6cm, 6cm, 9cm, 9cm?

**7th Grade Math**

In an addition problem the answer should have the same number of significant figures as the measurement with the mot decimal places. True or False? I say True.

**7th Grade Science**

Oh, Thank You Lisa.

**7th Grade Science**

What can be inferred after performing the experiments in the atomic theory lab? A) Where matter comes from B) How salt is formed C) If salt can dissolve in water D) If matter is created or destroyed Is it D?

**Accounting **

Q1a: Complete Problem 14.1 on page 269 of the Collier text (solution is on page 501-502). Next work the problem again using the following variables: project yield annual net cash inflows are $10,500 for the next five years; interest rate of 16.5%, and the initial investment of...

**management decision making**

Analyze and compare both data sets using the data analysis and biases concepts from Chapter 11 of Sekaran & Bougie (2010). Compare only those categories that you find are significant to your analysis in demonstrating whether the US demographics based promotions can or cannot b...

**statistics**

The National Center for Education surveyed 4400 college graduates about the lengths of time required to earn their bachelor's degrees. The sample mean is 5.15 years, and assume that standard deviation is known to be 1.68 years. Based on the sample data, construct the 99% c...

**Math**

i have the answers, but does not have the answers for the set of problems I was working on. That was one of my questions I was not completly sure of. I copied the problem word for word from the text. I did as much calculations as I knew how...it was then trying to figure out h...

**Math**

Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give (a) the Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected, (b) the Z score on the comparison ...

**College algebra**

If the domain and range of a function consists of real numbers, then you can graph it by plotting all ordered pairs (x, f(x)). Remember "y" = f(x). How can you tell by looking at a graph if it represents a function?

**Anthropology 101**

Hi Sue This for question 10 Modernization Theory Why are some people and countries poor, and how can they achieve development similar to that experienced in the Western world? Modernization theory is informed by both classical sociology and economics. It stems from Charles Dar...

**Anthropology 101**

I have and the I just want know if it is correct. 1. The American class system: (Points : 1) is a closed system. is an open system.X is mostly endogamous. is an illusion, because there are no classes. 2. A dowry is: (Points : 1) when, upon marriage, the bride works for the gro...

**spanish**

Could we walk Monday or Tuesday instead?

**algebra1**

factor: 4x^8-24x^7+12x^6

**California History**

Thank you so much this helped a lot! Especially the first and second link(:

**California History**

What's a good website that i can read about the Chinese immigrant labor during the railroad era? & whats one way i can start the first sentence on a one page report? Thank You

**algebra1**

solve: y-3/y-7 - y+1/y+7 + y-63/y2-49

**Social studies**

Yes exactly, thank you so much

**Social studies **

Question: why do you think the united states is attractive to foreign investors? My Answer: anytime political upheaval strikes in an another part of the world, foreign investment in the United States increases because we remain a politically stable country. If you have anythin...

**Social Studies**

Throughout the work many fear that the United States culture has taken over everyone else's culture. Some people have called this economic imperialism. Do you think I could add that to my answer? Is it what you ment about hurting Americans.

**Social Studies **

Question: Why do some people object to foreign ownership of the us business and real estate? My Answer: Many people argue against foreign ownership because they worry about foreign control.

**algebra1**

factor: 180s^2+300sf+125f^2

**math**

A researcher wanted to answer the following question: What is the difference in students' computer anxiety based on whether or not they own computers? The researcher surveyed 92 undergraduate education students via an online survey. In the survey, the researcher asked a ye...

**algebra1**

factor: 180s^2+300sf+125f^2

**Economics **

How would you expect the return on a stock market fund to differ from the return on savings account? Why do you think the two rates of return differ?

**Econ **

How would you expect the return on a stock market fund to differ from the return on savings account? Why do you think the two rates of return differ?

**Please help! **

If your bank paid simple intrest Of 4.25% compounded annually how much intrest would you earn after three years on an initial deposit of $750.

**algebra 1**

Opening a book with 2 facing pages. The product of the page numbers is 600. What are the page numbers?

**Economics **

Stabilizing the national economy.. What effect is an increase in tax rates likely to have on the underground economy? Why?

**Economics **

Stabilizing the national economy.. What effect is an increase in tax rates likely to have on the underground economy? Why?

**Econ**

What effect is an increase in tax rates likely to have on the underground economy? Why?

**algebra 1**

If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?

**statistics**

A biologist reports a confidence interval of (3, 2, 3, 8) when estimating the mean height in (in centimeters) of a sample of seedlings. The estimated margin of error is __________ , The sample mean is ________.

**algebra 1**

solve for x: x^2+12x+4 = 0

**algebra 1**

solve for x: x^2+12x+4 = 0

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