Thursday

July 24, 2014

July 24, 2014

Total # Posts: 63

**Chemistry. Please**

If 15ml of 1M sulfuric acid is used until faint pink endpoint is reached how many moles of magnesium hydroxide are in 50ml solution. Please help

**Chemistry. Please :(**

1. If 23.00 grams of carbon dioxide and 18.75 grams of water are formed from the combustion reaction. What is the percent yield for CO2 and H20. How much in grams of the excess reactant remains? 2. Balance the equation and determine the mass in grams of hydrogen gas produced w...

**science-chemistry**

We performed a titration with NaOH solution with KHP. Now I need to calculate the average molarity of NaOH based on this data Weight of khp= 0.1083 g Volume of naoh = 6.4 ml Then if i get this how do i get the molarity of ch3cooh totrated in naoh with the data Volume of vinega...

**Trigonometry**

2sinx-cosx=3/sqrt. of 2

**Trigonometry**

4cos^2x-5sinxcosx-6=0 find the x :( please

**math**

The equation of a line is y = mx - 1. Find the value of m if the line passes through the point (2, 3).

**math**

Find an equation of the circle that has center (-2, 1) and passes through the origin.

**math URGENT**

Find all values of x such that sin 2x = sin x and 0 x 2π. (List the answers in increasing order.) x= x= x= x= x=

**math**

Solve the equation. (Find only the real solutions.) x2 - x - 2 = 0 they also said there is a smaller value and a larger value ??

**math**

If sin(x) = 1/3 and sec(y) = 5/4, where x and y lie between 0 and π/2, evaluate sin(x + y).

**math**

i think u meant the subject math -_-

**math**

Rewrite by completing the square. 2x^2 - 12x + 11

**Algebra 2**

how would you translate the graph of y=-x2 to produce the graph of y=-(x+1)2?

**Singapore Math**

Here is your bar model: This is a unit bar: [xxx] Before - the had equal amounts, then they each spent some money. In the end, Lily has twice as much as Sara, or 2 units. Lily [xxx][xxx]<----$18---->| Sara [xxx]<-----$25-------->| If they started out the same, the ...

**Grade 12 life orientation**

Five factors that contribute to the life style disease of hiv/aids

**Math**

1/5(2x+10)=2x-8

**8th grade**

how many 2-kg and how many 5-kg plates go onto the bar to make 34-kg.

**PHYSICS**

A cricket bowler bowls a cricket ball witha mass of 150g and a radius of 52mm. The bowler's arm weighs 3.4kg and has a length of 0.68m. The centre of mass of the bowler's arm act's at it's midpoint. What is the moment of inertia of the cricket ball and bowler&#...

**Physics**

A figure skater is spinning with her arms out wide. Will she spin faster or slower if she tucks in her arms? Why?

**Science**

A cricket bowler bowls a cricket ball witha mass of 150g and a radius of 52mm. The bowler's arm weighs 3.4kg and has a length of 0.68m. The centre of mass of the bowler's arm act's at it's midpoint. The moment of inertia of the cricket ball and bowler's arm?

**Anatomy**

What is the groove between the diapragm and ribcage in the lower part of the pleural cavity?

**Last question, I swear! Math!**

73-x=17

**Math/116**

sorry im not sure.

**Math/116**

3.5 multiplied by 5.

**Math/116**

a is correct b is 3.5(5)=17.5

**Help please? Math!**

7-2W

**math**

YES.

**math**

Yes

**math**

YES

**Mathmatics**

You welcome.

**Mathmatics**

1/4 (7+W)

**Math**

Find the gradient and then substitue the gradient with 1 set of coordinates in the equation of a straight line.

**math**

9A+ 4

**Geometry**

180 - 135 = 45 degrees

**Science**

Fred and Joe are moving identical boxes across a floor where there is friction present. Fred pushes his box with a force that is directed 20 degrees below the horizontal, while Joe pulls his box using a rope that is angled 20 degrees above horizontal. Who must use the greater ...

**Math**

Yes.

**physics**

The mechanical energy.

**science**

THANKS A MILLION. Tutocat.

**Science**

A crate is resting on the back of a truck and has a coefficient of of friction of 0.45. What is the maximum acceleration that the truck can undergo before the crate starts to slide off the back of the truck.

**math**

8732 divided by 1

**math**

No, it is 270.

**PHYSICS**

Thank you

**PHYSICS**

will the scale read 0

**PHYSICS**

A 70 KG man is standing on a scale inside an elevator. Calculate the reading on a scale after the cable breaks and the elevator goes into free fall.

**physics**

thank you drwls

**physics**

During a lift off , the thrust a rocket produces must overcome the force of gravity in order to lift the rocket off the ground. If a rocket with a mass of 5kg produces a force of 180N, how fast will the rocket be travelling 3 seconds after ignition?

**Chemistry**

A 20ml of a 1M KOH solution is used to react with sulphuric acid, what is the number of mols of KOH used?

**Science**

A force of 20N is pushing a box at an angle of 50 degrees to the right of a dotted line. At what angle would a second force of 40N need to push in order to move the box straight in the direction of the dotted line?

**Chemistry**

How much heat on joules is required to melt 3mol of ice? (the heat of fusion is 6.01 kj/mol)

**limits**

use f'(x)=lim h-->0 f(x+h)-f(x)/h to find the limit: h-->0 sin^3,4(x+h)-sin^3,4x/h

**Calculus **

A point moves along the curve y=(x-2)^2 such that the x coordinate is increasing at 2 units per second. At the moment x=1, how fast is its y coordinate changing.

**Calculus **

The edge of a cube is increasing at a rate of 2 inches per minute. At the instant when the volume is 27 cubic inches, how fast is the volume changing? indicate the units of measure. V=x^3

**Calculus **

If y=ln((3x+2)^6(x+10)^3), then dy/dx=

**Stats**

A is the symbol used, its not coming through when I type the question. I am not sure what the symbol a is suppose to represent either. I will send my professor an email, hopefully she can provide clarification on this question. Thanks for trying to help me...

**Stats**

Think I know the answer, but can someone please confirm... Find the value of a that corresponds to a confidence level of 84%. Answer: 0.16???

**science**

Hi, I need scientific diagrams of the following: Mushroom (Armillaria ostoyae) Lactobacillus bulgaricus They must be detailed (ie cell wall, cell membrane etc) and at least 5 distinguishing features. Thanks

**science**

what is matter best described by?

**com120**

I NEED TO WRITE THE TYPE OF INTRODUCTION USED IN THE STORY THE CASE AGAINST CHORES

**Com 120**

I need to write a impact on a introduction to the story the case against chores

**IT**

I NEED HELP WITH GIVING EXAMPLES OF MASTERING THINKING SKILLS. http://www.google.com/search?q=thinking+skills&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA First you must define what you mean by "thinking skills" and then you must de...

**Information Technology**

what are the benefits from using thinking skills you succeed in your educational and personal life i guess!!! I would love to hear and critique what you think of for this answer ;) Matt What happens if you DON'T use thinking skills? That is, if all you do is react to whate...

**INFORMATION TECHNOLOGY**

WHAT IS MASTERING SKILLS Mastering = becoming so good at something that one is a "master" of it. Becoming very proficient. http://www.answers.com/mastery http://www.answers.com/proficient =)

**Pigskin Geography**

haha!! lol thats funny. id help ya out. but, i dont know them myself.

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