Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 32

**Math**

Liam has a bag containing five red, two blue, five green, six yellow and two white marbles that are all the same size and shape. what is the probability of randomly choosing a green marble on the first pick, not replacing it, and then randomly choosing a green marble on the se...

**Physics**

If the gravitational force on you is 670N on the earth, how strong is the gravitational force on you on the surface of a neutron star that has the same mass as our sun and a diameter of 20.0km ? Take the mass of the sun to be ms = 1.99×1030kg , the gravitational constant...

**chemistry**

Calculate the heat that must be supplied to a 488 g stainless steel vessel containing 441 g of water to raise its temperature from 38.7◦C to the boiling point of water 100◦C.

**Chem**

If you begin with 10. liters of 0.15 M NaCl, what mass of NaOH can be formed? 2 NaCl(aq) + 2 H2O(liq) ¨ H2(g) + Cl2(g) + 2 NaOH(aq)

**math**

what is a set of atleast twelve numbers that have the following landmarks: maximum:8 Range:6,mode:6,median:5 Show a bar graph of the data

**math**

what is a set of atleast twelve numbers that have the following landmarks: maximum:8 Range:6,mode:6,median:5 Show a bar graph of the data

**physics**

A pelican flying along a horizontal path drops a fish from a height of 5.1 m. The fish travels 6.1 m horizontally before it hits the water below. What was the pelican’s initial speed? The acceleration of gravity is 9.81 m/s2 . Answer in units of m/s

**Economics**

The answer is c

**Physics**

A sunbather lying on a floating raft that experiences no friction with the water gets up and walks to the western end of the raft. While she is walking, how does the center of gravity of the system composed of her and the raft move? Why? If the mass of the raft is 10 times tha...

**Physics Angular displacement**

A car is traveling with a speed of 25 m/s along a straight, horizontal road. Each wheel has a radius of .25 m. If the car speeds up with a linear acceleration of 2.0 m/s^2 for 6.0 s. Find the angular displacement of each wheel during this time in revolutions.

**Physics, Angular displacement**

A 20 kg sled is being pulled along a horizontal stretch of snow covered ground by a horizontal force of 30 N. Starting from rest, the sled attains a speed of 2.0 m/s in 12 m. Using the work-energy theorem, find the coefficient of kinetic friction between the sled and the snow.

**math**

A painter covers 4 square yards of surface in 1.5 minutes. The area of a tennis court is 800 square yards. Using one of these painters, how many hours will it take to paint a tennis court?

**math**

kris scored 630 points on a particular section of a CPA exam for which the score were normally distributed with a mean of 600 points and a standard deviation of 75 points. At a differenttime, kerry scored 540 points on the same section, for which scores were normally distribut...

**math**

what is 5 3/4 divided by 1/3? please show work.

**math**

what is dimensions of an acre? and size of football field?

**social studies**

Which issue did some people think would be a problem related to NAFTA? A. increases in immigrants from Mexico B. decreases in income to governments because of lower tariffs

**adv. alg.**

list all roots of 1) x^5-3x^4+3x^3-x^2=0 2)8x^3-12x^2+6x-1 3) x^4=16

**math**

)SIMPLIFY i^2 square root of -80 2)SOLVE 49x^2+100=0 3)14-i^6 divided by i

**adv. algebra**

1)SIMPLIFY i^2 square root of -80 2)SOLVE 49x^2+100=0 3)14-i^6 divided by i

**geometry**

what is regular and not regular polygons?

**5th grade math**

what is the greatest common factor of this number pair? 24,28 what is the least common multiple of this number pair? 27,36

**math**

1. find the least common multiple of each number pair 27,36 2. find the greatest common factor of each number pair 24,28

**Math**

How to write one half percent?.05% or .5%?

**5th grade**

rectangular arrays for 8. write prime or composit

**science**

The amount of matter in an object is its______. The amount of matter in a given space or volume is its_______.

**math**

Is 70.21 = 7.210 ?

**geography**

Which pair of basic questions guides geographers in their work

**7th grade 3D math**

-2(-2)^2

**commas**

Would there be a comma after a question mark in this sentence. "When are we going to the zoo?" Anthony asked. "I want to see the elephants."

**Finance**

Corporations that do not issue financial securities such as stock or debt obligations: A) will not be able to increase sales. B) cannot be profitable C) generate sufficient funds to fulfill their needs D) do not face double taxation of thier profits I read and read and I think...

**Math**

I have to use a 1 parallelogram, 1 square, and 2 small triangles -they are cut out of paper-. I have to make trapezoid out of those. Any ideas

**physics**

According to my physics book with the answers in the back, this is correct.

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