Wednesday

February 10, 2016
Total # Posts: 156

**Physics**

A 9.7 kg block moving at 3 m/s makes a head-on elastic collision with a stationary block of mass 7.6 kg. Find the velocity of the 7.6 kg block. Answer in units of m/s.
*January 31, 2016*

**Physics**

The mass of a star in a galaxy far, far away, is 2.13 × 105 Earth masses, and the mean distance from the center of this star to the center of a planet with the same mass as our Earth is 7.87 × 108 km. Treating this planet and star as particles, with each mass ...
*January 17, 2016*

**math**

How many different ways can a team have a final score of 11 points in NFL football?
*January 14, 2016*

**math**

suppose she cut the cake into 8 pieces and 6 people ate all the pieces . explain how they could divided the pieces so that everyone ate the same amount of cake
*January 13, 2016*

**math**

Create a piecewise function of the following scenario where D(t) is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 6 miles per hour for 25 minutes. You rest for 15 minutes, and then you ...
*September 16, 2015*

**science**

electric charges that are different A. attract each other B. Repeal each other C. exist in pair D. DO not interact
*June 2, 2015*

**math**

A gardener rested his hose against a shed. The hose made a 50° angle with the ground
*April 12, 2015*

**English**

I am currently writing an argumentative essay about religion. The question is; Does religion better us as a society or does it create more conflict and division in the world? Being the Devils Advocate that I am I am going to argue that it creates more conflict and division. ...
*January 24, 2015*

**Math**

35.99
*December 3, 2014*

**Health**

The answer is Anti-Social behavior; B Aspects of personality/temperament and certain behaviors that are evident early in life—often before children enter elementary school—such as antisocial behavior, poor self-regulation, poor self-control, anxiety, a tendency ...
*November 6, 2014*

**Language arts**

Thank you for giving me a bunch of great idea
*October 14, 2014*

**Language arts**

Oh okay
*October 14, 2014*

**Language arts**

I don't get this web page
*October 14, 2014*

**Language arts**

So what do I do next
*October 14, 2014*

**Language arts**

A golden necklace that has my name on it. My birth stone ring. And more. These things are important because these are the stuff given from special people that means a lot to me.
*October 14, 2014*

**Language arts**

The things that are given to me on a special day or a special occasion
*October 14, 2014*

**Language arts**

Write an essay explaining the importance of appreciating what you have.
*October 14, 2014*

**Chemistry**

For :H2O(g) --> H(g) + OH(g); At 3000K and P(total)=1.00 atm, from your K value calculate system composition from 1.00 mol H2O(g) and no products initially. The K I got (using Delta G superscript zero = [Delta H superscript zero]-[T* Delta S superscript zero)=]) was 9.5x10...
*July 31, 2014*

**Chemistry**

If 3.50 mol of A is mixed with 0.750 mol of B and the final pressure of the mixture is 3.25 atm, what are the partial pressures of A and B
*June 8, 2014*

**algebra**

Gshss
*May 29, 2014*

**Social Studies Help**

Oh, I have a other one. The Industrial Revolution in New England started with a machine built by Samuel Slater. He made a cotton spinning machine similar to what they were using in Britain. He used this to build textile mills.
*February 12, 2014*

**Social Studies Help**

OK. Is this correct? The Industrial Revolution in New England started with a machine built by Samuel Slater. He made a cotton spinning machine similar to what they were using in Britain. He used this to build textile mills.
*February 12, 2014*

**Social Studies Help**

What resources led to the appearance of the Industrial Revolution in New England?
*February 12, 2014*

**english/III**

Analyze the sentence to select the adverb clause, subordinating conjunction, and the word(s) modified in the appropriate boxes below. Please get to bed early since you have a test tomorrow Adverb clause: Word(s) modified: Subordinating conjunction:
*November 13, 2013*

**English**

In the following sentence, should "is" be replaced with "are"? Beowulf’s courage and willingness to fight to his death is what makes him a classic hero.
*November 9, 2013*

**Physics**

A 0.0122-kg bullet is fired straight up at a falling wooden block that has a mass of 2.17 kg. The bullet has a speed of 813 m/s when it strikes the block. The block originally was dropped from rest from the top of a building and had been falling for a time t when the ...
*October 13, 2013*

**math**

supose 3 sudents changed their vote from math to science.describe how the frequency table would change.
*October 9, 2013*

**Physics**

The weight of an object is the same on two different planets. The mass of planet A is only sixty percent that of planet B. Find the ratio of the radii of the planets.
*September 20, 2013*

**Physics**

On earth, two parts of a space probe weigh 17300 N and 3260 N. These parts are separated by a center-to-center distance of 19.4 m and may be treated as uniform spherical objects. Find the magnitude of the gravitational force that each part exerts on the other out in space, far...
*September 20, 2013*

**Physics**

An eagle is flying horizontally at 7.9 m/s with a fish in its claws. It accidentally drops the fish. (a) How much time passes before the fish's speed doubles? (b) How much additional time would be required for the speed to double again?
*September 20, 2013*

**Physics**

Along a straight road through town, there are three speed-limit signs. They occur in the following order: 51 , 33 , and 26 mi/h, with the 33 -mi/h sign located midway between the other two. Obeying these speed limits, the smallest possible time tA that a driver can spend on ...
*September 12, 2013*

**Physics**

A ball is thrown straight upward. At 6.30 m above its launch point, the ball’s speed is one-half its launch speed. What maximum height above its launch point does the ball attain?
*September 12, 2013*

**Physics**

Before working this problem, review Conceptual Example 15 . A pellet gun is fired straight downward from the edge of a cliff that is 22.3 m above the ground. The pellet strikes the ground with a speed of 34.9 m/s. How far above the cliff edge would the pellet have gone had the...
*September 12, 2013*

**Physics**

Along a straight road through town, there are three speed-limit signs. They occur in the following order: 51 , 33 , and 26 mi/h, with the 33 -mi/h sign located midway between the other two. Obeying these speed limits, the smallest possible time tA that a driver can spend on ...
*September 12, 2013*

**Physics**

The Space Shuttle travels at a speed of about 9.11 x 103 m/s. The blink of an astronaut's eye lasts about 93.4 ms. How many football fields (length = 91.4 m) does the Space Shuttle cover in the blink of an eye?
*September 10, 2013*

**Physics **

A 1.2 kg object is moving with a speed of 8.0 m/s collides perpendicularly with a wall and emerges with a speed of 6.0m/s in the opposite direction perpendicular to the wall. If the object is in contact with the wall for 2.0m/s. What is the magnitude of the average force on ...
*July 13, 2013*

**Math**

8*2*1=16 16*1*1=16 4*4*1=16 4*2*2=16
*March 10, 2013*

**parallelograms**

what is the area of parallelogram lmno
*February 26, 2013*

**us history**

As a result of the War of 1812, the United States
*February 25, 2013*

**Physics**

How would I determine the height of a mountain if I am given direction cosines of vectors from two points on the base of the mountain to the peak?
*January 13, 2013*

**Chemistry**

1. How much heat is added to 40.0 g of ice at –20 o C to convert it to steam at 120 oC? 2. How much heat is added to 25.0 g of ice at –25 o C to convert it to steam at 120 oC? 3. How much heat is added to 10.0 g of ice at –20 o C to convert it to steam at 120 oC...
*January 2, 2013*

**math**

Twenty-seven greater than five divided by a number is eight.
*December 26, 2012*

**us history **

whic statement about the female workforce during the war is not true A) women gained cl
*December 15, 2012*

**Lang. Arts 2 questions**

9.dog 10.wrote a fantastic essay about Paris
*November 9, 2012*

**physics**

A 170 N block rests on a table.The suspended mass has a weight of 52N. What is the magnitude of the minimum force of static friction required to hold both blocks at rest?
*October 25, 2012*

**physics**

A 74.0 kg box slides down a 28.0 degree ramps with an acceleration of gravity of 3.10 m/s^2. Find μk between the box and the ramp. The acceleration of gravity is 9.81 m/s^2
*October 25, 2012*

**Physics**

A school bus take 0.530h to reach the school from your house. If the average velocity of the bus is 19.0km/h to the east, what is the displacement ?
*October 16, 2012*

**math**

18.60
*October 7, 2012*

**math**

the circumference of a circle is 18*3.14cm. The radius is increased, and the circumferenceof the new circle is 16*3.14cm. by how much was the radius of the oringinal circle increased?
*September 12, 2012*

**MODELS NUMBER **

DRAW MODELS FOR THE NUMBERS BELOW 324
*September 10, 2012*

**algebra**

Calvin invested $7500 for one year, part 12% annual interest and the rest at 10% annual interest. His total interest for the year was $890. How much money did he invest at 12%?
*September 7, 2012*

**algebra**

HELP! Please Calvin invested $7500 for one year, part 12% annual interest and the rest at 10% annual interest. His total interest for the year was $890. How much money did he invest at 12%? Show work.
*September 7, 2012*

**7th Grade Help**

water
*September 7, 2012*

**algebra**

PLEASE HELP :( Taisha uses the elliptical cross-trainer at the gym. Her general goal is to burn 280 calories per workout, but she varies by as much as 25 calories from this amount on any given day. Write and solve an equation to find the maximum and minimum number of Calories ...
*August 30, 2012*

**algebra**

Taisha uses the elliptical cross-trainer at the gym. Her general goal is to burn 280 calories per workout, but she varies by as much as 25 calories from this amount on any given day. Write and solve an equation to find the maximum and minimum number of Calories Taisha burns on...
*August 30, 2012*

**algebra**

A thermometer is guaranteed to give a temperature no more than 1.2 degrees Fahrenheit from the natural temperature. If the thermometer reads 28 degrees Fahrenheit, write and solve an eqution to find the maximum and minimum temperatures it could be.
*August 30, 2012*

**reading**

All of the following are goals of study reading EXCEPT: A. greater speed. B. retain information in your long-term memory. C. be an active reader. D. active reading.
*August 3, 2012*

**math**

A stationery retailer generally prices portable computers using a 30 percent markup. The retailer expects to sell 100 portable computers at the 30 percent markup. How many units would it have to sell at a 10 percent increase in price from the original price to maintain the ...
*June 30, 2012*

**geometry**

The size of a bicycle is determined by the diameter of the wheel. You want a 22-in bicycle for your birthday. What is the area of one of the wheels?
*June 21, 2012*

**Conceptual Physics**

Mix 50 mL of 40 degrees Celsius water with 50 mL of 30 degrees Celsius water and you will get water at...
*May 15, 2012*

**Trig**

How do i find the exact value of sin 15 using the half angle formula
*April 13, 2012*

**Life orientation**

Alcoholism is a human factor that may cause sickness, accidents, crisis or disasters.
*April 12, 2012*

**intense algebra**

Evaluate 27z^2 + 42z - 5?
*February 15, 2012*

**Math**

6^5
*February 6, 2012*

**HISTORY**

what were labor unions?
*January 22, 2012*

**Variables and expression**

Explain how you could show five less than a number using an expression
*September 15, 2011*

**algebra**

the sides of a triangle are in the ratio 3:4:5.what is the length of each side if the perimeter of the triangle is 78cm?
*September 5, 2011*

**us history**

describe New England in 1700's
*August 26, 2011*

**math**

In a 30 degree-60 degree right triangle, the opposite the 60 degree angle is 15.7 inches. Find the length of the hypotenuse. Round to the nearest tenth if necessary.
*May 15, 2011*

**pythagoream theroem**

how do you find the height of a triangle that is 20cm. on each side
*May 9, 2011*

**Math**

Prove that if sin doesn't equal 0, then 1+cot^2=csc^2. HELP!!!!!!!!!!!!
*April 25, 2011*

**Math**

a-30-39
*April 25, 2011*

**Math**

1/6 for black or 17% 1/3 for wahite or 33% 1/2 for striped or 50%
*April 25, 2011*

**math**

How high is a flagpole that casts a 42-ft at the same time that 5 1/2- ft women casts a 7 ft shadow
*April 16, 2011*

**trig**

express in terms of ¦Ð, the interval for which 4cosx ¡Ý 2
*April 9, 2011*

**math**

a shipping box is shaped like a rectangular prism.it has a total volume of 96 cubic inches. the height is two inches less than the width. what are the dimensions of the box?
*April 6, 2011*

**geometry**

what's the area of a parallelogram with a height of 48 ft and a base of 40 ft
*March 31, 2011*

**algebra 2**

(9+4i)+(-13+7i)
*March 30, 2011*

**algebra 2**

Use substitution to solve the system 3x + 7y = −3 (1) 7x + y = −53 (2) Find the value of x. (part 2 of 2)Find the value of y.
*February 17, 2011*

**chemistry**

what is the osmotic pressure at 20 C of a solution made by dissolving 0.69 grams of sucrose C12 H22 O11 in 100 mL of water
*February 2, 2011*

**trig**

i put it in my graphing calculator, though, and they graph the same function
*January 2, 2011*

**trig**

verify : [sec(x) / csc(x) - cot(x)] - [sec(x) / csc(x) + cot(x)] = 2csc(x)
*January 2, 2011*

**Physics**

A Ferris wheel with radius 9.8 m rotates at a constant rate, completing one revolution every 36.6 s. Suppose the Ferris wheel begins to decelerate at the rate of 0.227 rad/s2 when a passenger is at the top of the wheel. Find the magnitude and direction of the passenger's ...
*November 18, 2010*

**science**

what is an example of a question a scientist could test and how would you test it?
*September 27, 2010*

**eth/125**

What's a current issue between the Native Americans and the federal government?
*July 31, 2010*

**Math**

solve for x: (Square root of 5x-6)=x
*June 6, 2010*

**History**

What 3 things made Schindler successful in saving 1100 Jewish people? The only one if could think of is Itzhak Stern his accountant.
*May 8, 2010*

**HMS 230**

•Write one additional audit question for each of the categories (board, staff, donors and fund raisers, clients/customers, volunteers, and society) listed in the sample audit in Appendix B of your text. •Explain why each question you wrote is important to assessing ...
*April 22, 2010*

**Science**

There are some sections on Charles Darwin that I need help with for an assignment: -employment -major influence in life -activities/hobbies please help!
*April 10, 2010*

**English**

I have to write a problem-solution essay and I can't think of a topic. Please help. It can be about any problem.
*April 7, 2010*

**geography**

what are some tricks that will; help me remember the stats and the capitles
*February 23, 2010*

**Speech**

I have to write a speech of a business nature about creating more interest in and understanding of the American business enterprise. Im confused on what this means. Could someone help me?????????????
*February 14, 2010*

**World History**

I know what the white man's burden means, but my teacher wants us to rewrite it in a modern way. I am confused on how to do it could someone do the first stanza for me as an example? Take up the White man's burden -- Send forth the best ye breed -- Go bind your sons to...
*February 3, 2010*

**science**

The name for the electrons on the outer-most energy level is referred to as valence electrons. When talking about the Group A (Groups 1,2, and 13-18) elements, they increase from left-to-right across the periodic table. These generally don't apply to Group B (groups 3-12...
*January 10, 2010*

**English**

Hey, I was wondering if I could get some help looking for figurative language in this poem, like simile, assonance, alliteration, personification, metaphor, onomatopoeia, ext. Thanks! What do I care that the stream is trampled, the sand on the stream-bank still holds the print...
*January 10, 2010*

**Algebra 2**

Ok, what you do is you replace all the x's. You would get f(x)=(-2)^2+2(-2)-5. It is important, if entering it in a calculator, to put the parentheses () around the "x", because if you put -2^2, the calculator will think that means the negative of 2 squared. Then...
*January 10, 2010*

**math**

Oh wait, I meant graph (3,0) and draw a verticle line. Whoops!
*January 10, 2010*