Sunday

May 29, 2016
Total # Posts: 1,400

**Algembra**

a train leaves a station and travels north at 85 km/hr. Four hours later, a second train leaves on a parrallel track and travels north at 125km/hr. How far from the station will they meet?
*July 14, 2011*

**pre calc.Math **

Please help me any one of these please! Thank You to any one r=2-6 cos(θ) convert this polar coordinate equation into an equation in rectangular coordinates(x,y) given (-8,8) convert this point into polar coordinates with 6 >= 0 and 0<=θ<= 2pi given x^2+ (y-...
*July 12, 2011*

**physics**

A 6-kg bowling ball rolling at 5 m/s strikes a stationary 4-kg bowling ball. If Ball #1 is moving forward at 2 m/s after the collision, what is the speed and direction of Ball #2? What is the impulse of the system? If the collision last for .5 seconds, how much force is exerted?
*June 29, 2011*

**physics**

A 4.5-kg ham is thrown into a stationary 15-kg shopping cart. At what speed will the cart travel if the ham had an initial speed of 2.2 m/s? If the ham hits the cart with 2N of force, how long did the collision between the two last?
*June 29, 2011*

**Experiment**

thank you
*June 14, 2011*

**Experiment**

The question is how do I design a basic experiment that would allow us to establish a cause-effect relationship between number of hours worked per week and lower college graduation rates? It must have these components: a manupulated independent variable, a dependent variable, ...
*June 14, 2011*

**Experiment**

the experiment that would allow establishing cause-effect relationship between number of hours worked per week and lower college graduation rates has to have these components: a manipulated independent variable, a dependent variable, control for extraneous variables, an ...
*June 14, 2011*

**Experiment**

I want to design a basic experiment that would allow establishing a cause-effect relationship between number of hours worked per week and lower college graduation rates.
*June 14, 2011*

**Algebra**

Write the solution in interval notation x<5 and x>=-2. ) What would the compound inequality look like? Thanks for the help!
*June 9, 2011*

**Algebra**

Determine whether the given numbers are solutions of the inequality. y-8>2y-3 4, -11, -19, -1 (are any of these numbers a solution to the inequality?)
*June 9, 2011*

**penn foster**

industrial activities operates 5 days per week with a daily payroll of $4000. employees are paid every saturday for the workweek just completed(monday to friday). the last day of the month is wednesday, mar 31. what is the amount of wages expense recorded on the next payday, ...
*June 7, 2011*

**Science**

What is the kinetic energy of a 28 kg dog that is running at a speed of 7.0 m\s(about 16mi\h)?
*June 2, 2011*

**arithmetic**

if ratio is 5:12 and 12 equals 136 what does 5 equal?
*May 31, 2011*

**Algebra**

Write the equation of the line containing the given point and parallel to the given line. The equation of the line is y= ?... 1. Express your answer in the form y=mx+b. (7,8); x+7y=6 2. Express your answer in the form y=mx+b. (-4,8); 8x=7y+9 3. Express your answer in the form ...
*May 25, 2011*

**Algebra**

1. Express your answer in the form y=mx+b. (7,8); x+7y=6 2. Express your answer in the form y=mx+b. (-4,8); 8x=7y+9 3. Express your answer in the form y=mx+b. (8,9); 5x+y=9 4. Express your answer in the form y=mx+b. (2,-6); 8x+7y=5 I don't get ANY of this at all! Please ...
*May 25, 2011*

**Algebra**

Find an equation of the line having the given slope and containing the given point. m=7/8, (5,-6) The equation of the line is y=?
*May 24, 2011*

**Math**

fernando's soccer team played a good season. Finishing with 16 wins and 4 losses. Ties are not allowed. If winning or losing a game was equally likely, what is the probability that fernando's team ended up with this record? My Answer: C(20,16)(.5)^16(.5)^4 =.00462 =.46...
*May 6, 2011*

**math**

Answer= 14/18 and 3/18
*May 5, 2011*

**math**

Need to write an equivalent fraction for each, using the least common denominator. 1. 7/9, 1/6 ANSWER=12/18,14/18
*May 5, 2011*

**math**

1 on each side of the rectangle, but that would mean that it is a square.
*May 4, 2011*

**math**

using only whole numbers, how can you draw three rectangles with a perimeter of 12 units?
*May 4, 2011*

**History**

Thank you
*May 2, 2011*

**History**

How did Spain's American colonies help make it the richest, most powerful nation in the world during the 16th century??
*May 2, 2011*

**History**

Thank You
*May 2, 2011*

**History**

The spanish conquest in the americas from 1492-1580
*May 2, 2011*

**History**

What would be some main key points that would relate to the social life during the Spanish Conquest?
*May 2, 2011*

**social studies**

what is capitol
*May 2, 2011*

**English**

Need to find the predicate Adjective. 1. The valley in Johstown Pennsylvania was very deep. PA=deep 2. The hills around Johstown were high. PA=high 3. The lake above Johnstown seemed unusally full. PA=full 4. The concrete dam appeared weak. PA= weak 5. That day May 31, 1889 ...
*May 1, 2011*

**6th grade math**

There are three crowns in the royal cabinet: One for the King, One for the Queen, and one for the Princess. The king's circumference was 21.98 in, the Queen's circumference was 43.96 cm and the Princess' circumference as 392.5 mm. What are the Diameters's for ...
*April 27, 2011*

**6th grade math**

Ther jester was juggling in the medieval fair, and all three where different sizes and colors. The jester wanted to put them in order from least to greatest. The red ball had a diameter of 100 mm the green ball had a radius of 4 cm and the yeallow ball had the radius of 6.5 cm...
*April 27, 2011*

**statistics**

the organizer of a television show must select 5 people to partipate in the show. the participants will be selected from a list of 30 people who have written in to the show. if the participants are selected randomly, what is the probability that the 5 youngest people will be ...
*April 21, 2011*

**English**

Need to underline the noun or pronoun and circle the word that modifies it.... 1. Countless pioneers crossed this vast continent. Noun=pioneers Adj=countless, Noun=continent Adj=this,vast 2. Some people wanted rich, productive farmland. Noun=people Adj=some, Noun=farmland Adj=...
*April 18, 2011*

**Math Binomial theorem**

Thank you very much!
*April 17, 2011*

**Math Binomial theorem**

I'm preparing for a test and one of the questions in my text is as follows: In a trivia contest,Sam has drawn a topic he knows nothing about, so he makes random guesses for the 10 T/F questions. Use the binomial theorem to help find a)the number of ways Sam can answer the ...
*April 17, 2011*

**Math**

How many pounds of pressure does a 25 pound baby weigh in a head on collision when the car is traveling at 25 miles per hour. (and hits a stationary object) The assignment is to research car crash scenarios but I don't know a formula to figure this out.
*April 16, 2011*

**Business Math**

What amount must be paid to settle an invoice of $1200 dated Nov.28 , terms 3/10, n/30 if the invoice is paid on Dec. 3? I got $1164. Am I right? Thanks
*April 15, 2011*

**child care**

yes, part 2. its harder then the other.
*April 14, 2011*

**child care**

When preparing an environment for school-aged children, the caregiver should ensure that the A. environment resembles their school setting. B. children are continually intermixed with the younger children. C. outdoor area allows them to continually challenge their physical ...
*April 14, 2011*

**childcare**

BRANDY i think its b
*April 14, 2011*

**physics**

An air compressor is a device that pumps air particles into a tank. A particular air compressor adds air particles to its tank until the particle density of the inside air is 40 times that of the outside air. If the temperature inside the tank is the same as that outside, how...
*April 14, 2011*

**Math**

Thanks a lot.
*April 14, 2011*

**Math**

A gift store stocks baseball hats in red or green colors. Of the 35 hats on display on a given day, 20 are green. As well, 18 of the hats have a grasshopper logo on the brim. Suppose 11 of the red hats have logos. How many hats are red, or have logos, or both? The answer in ...
*April 14, 2011*

**physics**

The density of gold is 19 times that of water. If you take a gold crown weighing 24 N and submerge it in water, how much upward force must you exert on the submerged crown to keep it from accelerating?
*April 13, 2011*

**Grammer**

Thank you
*April 13, 2011*

**Grammer**

words that rhyme with soon
*April 13, 2011*

**physics**

A dish of hot food has an emissivity of 0.42 and emits 15 W of thermal radiation. If you wrap it in aluminum foil, which has an emissivity of 0.06, how much power will it radiate?
*April 12, 2011*

**physics**

If a burning log is a black object with a surface area of 0.35 m2 and a temperature of 800 ˚C, how much power does it emit as thermal radiation?
*April 12, 2011*

**physics**

To find delta P, use (deltaP)=8(pi)(eta)(L*v)/A Where eta is the coefficient for viscosity. For 40C water, it is .07e-3 Pa*s.
*April 12, 2011*

**physics**

How much force is the air exerting on the front surface of the book with dimensions 19 x 27 cm. Assume atmospheric pressure equal to 100,000 Pa.
*April 12, 2011*

**physics**

An air compressor is a device that pumps air particles into a tank. A particular air compressor adds air particles to its tank until the particle density of the inside air is 40 times that of the outside air. If the temperature inside the tank is the same as that outside, how ...
*April 12, 2011*

**physics**

If you submerge an 5-kg log in water and it displaces 6 kg of water, what will the net force on the log be the moment you let go of the log?
*April 12, 2011*

**physics**

The density of gold is 19 times that of water. If you take a gold crown weighing 24 N and submerge it in water, how much upward force must you exert on the submerged crown to keep it from accelerating?
*April 12, 2011*

**Math**

find the equation of the line tangent to 2xy=piesin y at the point (0,2pie)
*April 12, 2011*

**stereotypes in psychology**

african americans are good dancers blonds have more fun
*April 11, 2011*

**analogies**

good job!
*April 11, 2011*

**percentile rank**

i would like to able to find the percentile rank of a z score 0.313152 can someone tell me how to do this.
*April 9, 2011*

**maths**

5/6*(18/25-9)
*April 5, 2011*

**Business**

In Government Contracts is fair and reasonable pricing is more judgment-based or more market-based -why is that?
*April 5, 2011*

**math **

Need to write ratio 3 different ways. 1. 6 pencils to 4 erasers ANSWER= 6/4, 6 to 4, 6:4 Need to write an equivalent ratio for each. 1. 9/36 ANSWER= 1/4, 9 to 36, 9:36
*April 4, 2011*

**Biology**

What happens if you increase biodiversity? Decrease it?
*April 3, 2011*

**English**

Need to decide which form is needed:present participle, past, past participle of each verb in parentheses. 1. Nora (see) the toy exhibit at the museum. ANSWER=Seen 2. People (speak) French in parts of Canada. ANSWER=spoke 3. That character has (say) "Good Grief" ...
*April 3, 2011*

**science**

your mass is 90 kilograms. you are on the earth where the acceleration of gravity is measured at 9.8 meters/sec sec. What is your weight in Newton?
*April 2, 2011*

**Physics**

If a rock is dropped from a height of 64 feet, how long does it take to hit the ground? How fast is it going when it hits the ground?
*April 2, 2011*

**English **

Choose the correct sentence pattern for the sentences below? 1) There is good reason to be thankful. 2) The President sent the ambassador an invitation to the meeting. 3) Snow skiing is a very exciting sport. 4) I hereby declare Tuesday Shakespeare Day. 5)Relaxing under a ...
*March 31, 2011*

**News**

Why did another earthquake(6.6) happen in Japan? Was it an aftershock?
*March 29, 2011*

**News**

Thank you
*March 29, 2011*

**News**

Is the situation in Libya similar to what happened in Egypt? Why?
*March 29, 2011*

**Health**

I have a female red eared slider that has swollen eyes. I found out that it has a disease. I do not know where to get the antibiotics to help treat this disease and care for my turtle. If you know of any places or things I can do to help my turtle, then please do so. Thank You...
*March 29, 2011*

**grammar**

Your Open QuestionShow me another » Combine sentences using the best coordinating conjunctions.? using and, but, or, for, nor,yet and sometimes so. here are the sentences and my answer. I was hungry. I ate. / my answer- I was hungry, so I ate. I will go. I will stay./ my...
*March 29, 2011*

**English**

Need to label the verb wish A for action of L for Linking... 1. The koala bears have climbed the tree. Answer=A 2. The peacock seemed more beautiful than before. Answer=A 3. In the rain forest display at the zoo, the birds looked stange and exotic. Answer=L 4. The goats in the...
*March 28, 2011*

**Gen Chem**

What are the net ionic equations for: 1. Potassium Fluoride and Ammonium Chloride and 2. Sodium Hydrogen Sulfite and Potassium Cyanide?
*March 28, 2011*

**History**

Were Athen boys forced to serve in the army?
*March 27, 2011*

**History**

Was there anything significant that happened in Sparta? Were they important?
*March 26, 2011*

**History**

Thank You very much
*March 26, 2011*

**History**

Was there anything special/important in Sparta?
*March 26, 2011*

**History**

Why was Athens the most important city of ancient Greece?
*March 26, 2011*

**English**

I have a question if these are correct.. Thank you for your help! 11. The officers are government officials. (LV= are, Pn=officers) 12. Their presence was necessary in the far north county in the early days. (lv= was, Pa=necessary) 13. Now they are famous throughout the world...
*March 23, 2011*

**English**

A couple more questions on Transitive and Intransitive verbs. 1. Zoo keepers harvest bamboo for pandas. 2. Asian farmers live in bamboo houses. 3. Their sandals are made from bamboo strips. 4. People sometimes sleep on bamboo mats. 1. Trans 2. intrans 3. intrans 4. intrans ...
*March 22, 2011*

**english**

SO SHOULD IT BE 1. IN 2. TRANS 3. TRANS 4. TRANS 5. TRANS
*March 22, 2011*

**english**

Need help with Transitive and Intransitive verbs. 1. It is related to wheat, oats, and barley. 2. Their size might surpise you. 3. Some reach a height of 120 feet. 4. The stms measure a foot in diameter. 5. The Japanese also make flutes from these stems. 1. Trans 2. in 3. in 4...
*March 22, 2011*

**News Historical**

What's the difference between what's happening in Libya and what happened in Egypt? How did Gadhafi crush the revolution?
*March 21, 2011*

**Algebra**

The diameter of each tire on Niki's bike is 66 centimeters (cm). It takes her 16 minutes to ride 10 kilometers (km). How fast did Niki ride, in kilometers per hour?
*March 21, 2011*

**History**

Thank You
*March 20, 2011*

**History**

How did free enterprise effect industrialization?
*March 20, 2011*

**English **

thank you. I think I get it now...
*March 19, 2011*

**English **

A liberal arts background is excellent for professions considering to be lawyers and doctors.
*March 19, 2011*

**English **

American colleges consistently produce more physical education teachers than they produce biology teachers.
*March 19, 2011*

**English **

Women on the whole understand children better than men understands them.
*March 19, 2011*

**English **

The light at the intersection of Gurley and Montezuma will green exactly will not turn green until three seconds after the lights turn green at the intersection of Gurley and Marina.
*March 19, 2011*

**English **

My mother has great admiration towards my father and beliefs in my father.
*March 19, 2011*

**English **

Johnny never has studied and never will study his geometry.
*March 19, 2011*

**English **

just can't figure these sentences out. have to rewrite these sentences, correcting the problem of incorrect omission.? 1. A liberal arts background is excellent for such professions as lawyers and doctors. 2. American colleges consistently produce more physical education ...
*March 19, 2011*

**English **

I still don't understand..
*March 18, 2011*

**English **

I just can't figure these sentences out. have to rewrite these sentences, correcting the problem of incorrect omission.? 1. A liberal arts background is excellent for such professions as lawyers and doctors. 2. American colleges consistently produce more physical education...
*March 18, 2011*

**chemistry**

What volume will 73g of dry ammonia gas occupy at 11 degrees C and 720 mm HG? How uch air is needed to dilute the ammonia to 10ppm?
*March 17, 2011*

**College English**

I have read the whole book. I'm just not sure how to explain it.
*March 16, 2011*

**College English**

In the novel, Push by Sapphire, how does Precious' repressed memories affect her? How it manifest?
*March 16, 2011*

**English**

Thanks so much! :)
*March 14, 2011*

**English**

Does this question make sense: What is the author portraying in this chapter? or What are the emotions being portrayed in this chapter?
*March 14, 2011*

**math**

yes
*March 14, 2011*