Wednesday

April 23, 2014

April 23, 2014

Total # Posts: 618

**Science Check**

1)Two balls having the same mass of 1 kg roll toward each other, each moving at the same speed of 1 m/s. What is the combinded momentum? Would it be 0 kg m/s 2)A 30 kg girl and a 25kg boy face each other on friction free roller blades. The girl pushes the boy who moves away at...

**chem**

I have to balance an equation and I had to make the equation from an experiment we did. So far, my equation looks like this and I know what I have is correct: Cu(NO3)2+H20+NaOH----->Cu(OH)2 I think I probably need an N or a Na on the right side. What do you think? You don&#...

**chem**

Can someone please help me balance this equation? CH3OH + O2 ===> CO2 + H20 Thank you! CH3OH + O2 ===> CO2 + H2O To balance the H, put a two on the right. CH3OH + O2 ===> CO2 + 2H20 H and C are now balanced. O is balanced. Too easy. Are you sure that's right? We g...

**chem**

I can't seem to figure this out! I know I have to use mass to mass conversions though. Can someone help me out? Hydrochloric acid can dissolve solid iron according to the following equation: Fe + 2HCl to form FeCl2 + H2 a) How much HCl in grams would you need to dissolve a...

**algebra**

how do I help my son answer this question/ cary spent 1/3 of his class working on fraction problems and 3/6 of his class working on algebra problems. He spent the last 10 minutes of his class reading a chapter in his textbook. How many minutes long was the entire class? Thank ...

**ANSWER to BEBE's riddle**

Its the end of the lion

**English 10th Literature**

when you have subject verb agreement, do you always follow the rule?

**Science**

What are 3 reasons why salad dressing is a chemical suspension? Some of the liquid ingredients don't dissove in one another. That is why the dressing has to be shaken to blend together Some of the ingredients are solid spices or bits of cheese that do not dissolve I can...

**history**

Can you help me find information or perhaps give some on Nazi propaganda and its influences on third reich children I put your phrasing (Nazi propaganda and its influences on third reich children) into the search box at www.google.com and here are the results: http://www.googl...

**math**

x= 6/4

**social studies**

i have heard it asserted by some that, as america has flourished under her former connection with great britain, the same connection is necessary towards her future hapinness... nothing can be more wrong... america would have flourished as much, and probably much more, had no ...

**math**

what dose the n stand for in the math question 54-n=24

**math**

what is the equation for 54-n=24

**History**

a) if no candidate for the president wins a simple majority of the toatal number of electoral votes, wat body has the power to choose the president? b) What margin is required to choose the president c)Where in teh Constitution is the Electoral College described? d)The constit...

**History**

I am having trouble finding where I can locate where the veto power is described (about Congress overriding a presidential veto). i think it is in Article one Where can I find information about the House of Representatives having the power to impeach the president? http://www....

**Physics**

Moving at 20 m/s , a remote controlled car of mass 1000kg hits a pile of sand and comes to rest in 10 s. Find the average force that acted to stop the car. The same car now hits a wall and comes to rest in 1s. Find the average force that acted to stop the car. Use knowledge ga...

**Science**

Moving at 20 m/s , a remote controlled car of mass 1000kg hits a pile of sand and comes to rest in 10 s. Find the average force that acted to stop the car. The same car now hits a wall and comes to rest in 1s. Find the average force that acted to stop the car. Use knowledge ga...

**inverse trig functions**

evaluate the following expressions: tan(sec^-1(5/3)) tan(sec^-1(25/7)) cot(csc^-1(5/3)) i know the answers.. i jus dont know how to solve them =( PLEASE help me I assume your sec^-1 notation denot4es the arcsecant function, etc. sec^-1 (5/3) = cos^-1 (3/5). Think of a 3,4,5 ri...

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