Thursday

August 25, 2016
Total # Posts: 953

**chemistry**

So is this how i do this 31.5J= (18.9)(12.9)
*October 17, 2010*

**chemistry**

What is the specific heat capacity of lead if a 18.9 g sample increased 12.9 C upon the addition of 31.5 J? The units are J/(gK)
*October 17, 2010*

**Math**

I'm doing proportions, and I'm kinda confused with this one problem.. x/3=1/5. the way I do proportions is by cross multiplying, so I get 3=5x? I don't know what my answer would be?
*October 15, 2010*

**Social Studies**

I need a current event due tomorrow (10-15-10) and my teacher said there needs to be two sides to the subject, and i need help
*October 14, 2010*

**Physics-please check-this can't be right**

Thank you, Sorry to have not understood it-I apologize
*October 9, 2010*

**Physics-please check-this can't be right**

First,is that the correct formula? I redid it, I think it should be 43 for the speed. Is that correct? If not, please direct me on what I'm doing wrong.
*October 9, 2010*

**Physics-please check-this can't be right**

I asked about a golf ball hit at a 35 degree angle and the hole was 175 m away. What was speed of ball. I got a response, and it follows with my response. I'm not doing something right, can you help, please.Physics - drwls, Saturday, October 9, 2010 at 10:20am You can come...
*October 9, 2010*

**Physics-Please check**

I don't think I'm doing this correct. I took 175 = v^2/9.8 x 0.9397 I did 9.8 x 0.9397 = 9.02 then I took 175/9.20=19.02 This can't be right-did I make a mistake with the variables? I'm not getting this- Please help
*October 9, 2010*

**Physics**

Can someone help with this calculation, please? A golf ball is hit at a 35 degree angle and the hole is 175m away. What is the speed of the ball necessary to hit the hole? Thank you for any help you can give-
*October 9, 2010*

**earth/space science**

Walking along the sidewalk one day, you find a rock and want to know what kind it is. You look at it and se that it is an off white color, is greasy feeling when you rub it, and your fingernail scratches it and breaks it up. What kind of mineral do you think you have found?
*October 5, 2010*

**college physics (bob again**

and where did the uto the 2nd come from?
*October 1, 2010*

**college physics (bob again**

would 2.68 meters be a reasonable height for the cliff?
*October 1, 2010*

**college physics( hey bob) **

I posted this quesiotn and got some hlep but still dont know how to do it. could i please get a little more assistance please. I dont know how to solove for the time of falling or sound without the variable height. eng physics a rock is dropped at sea cliff at the sound of it ...
*October 1, 2010*

**college**

How can you get the quadratic formula out of this if there are two unknowns? speed of sound and u. also is there suppose to be another + after the second u? u^2/speedsound+u sqrt2/g - 3.4=0
*October 1, 2010*

**physics**

square root ahhaha. im dumb ok ok
*October 1, 2010*

**physics**

in physics what is sqrt?
*October 1, 2010*

**college physics**

eng physics a rock is dropped at sea cliff at the sound of it striking the ocean if head 3.4 seconds later. If the speed of sound is 340m/s how high is the cliff?
*October 1, 2010*

**physics**

a golf ball released from a height of 1.5 m above aa concreate floor bounces back to a height of 1.1m if the ball is in contact with the floor for .62 ms what is the average acceleartion of the ball while in contact with the floor?
*October 1, 2010*

**physics**

a rock is dropped at sea cliff at the sound of it striking the ocean if head 3.4 seconds later. If the speed of sound is 340m/s how high is the cliff?
*October 1, 2010*

**Math**

I am thinking of a three-digit number. If you subtract 5 from it, the result is divisible by 5. If you subtract 6 from it, the result is divisible by 6 and if you subtract 7 from it, the result is divisible by 7. What is the smallest number that will satisy these conditions?
*September 26, 2010*

**math**

Oops, sorry that is my little bro,he likes to mess with my computer.
*September 21, 2010*

**Spelling**

What are blending words?
*September 21, 2010*

**Math**

butty fart kaka dodopopopepe buttycheaks!!!!
*September 14, 2010*

**geometry**

the length of a rectangle is 6m than the width. the area is 55m2 what are the dimensions of the rectangle.
*September 12, 2010*

**geometry**

the length of a rectangle is 6m than width area is 55m2 what is dimensions of rectangle
*September 12, 2010*

**biology**

what word means "generation to generation change in the proportion of different inherited genes in a population?"
*September 7, 2010*

**Math**

33,935,933
*September 1, 2010*

**Physics**

How much water at 20 degrees C is needed to melt 1 kg of solid mercury at its melting point which is -39 degrees C? (The heat of fusion of mercury is 2.8 cal/gram).
*July 20, 2010*

**Physics**

You decide to take a nice hot bath but discover that your thoughtless roommate has used up most of the hot water. You fill up the tub with 270 kg of 30.0°C water and attempt to warm it further by pouring in 5.00 kg of boiling water from the stove. (a) Calculate the final ...
*July 18, 2010*

**SCIENCE**

A pilot of a light plane heads due north at air speed of 400km/h and wind is blowing from the west at a 60km/h.what is
*July 12, 2010*

**chemistry**

Food and Drug Administration (FDA) recommends that adults ingest less than 2.4 g of sodium per day. How many liters of softened water, containing a sodium concentration of 0.050% sodium by mass, have to be consumed to exceed the FDA recommendation? (Assume a density of 1.0 g/...
*July 9, 2010*

**science**

how making inferences help the scientist in their discoveries?
*June 29, 2010*

**alg**

simplify: sqrt (6/11) a) sqrt (66/11) b) 6 c) 6 sqrt (11/11) d)6 sqrt (11)
*June 26, 2010*

**algebra**

thanks jen
*June 26, 2010*

**algebra**

``solve: sqrt (r - 1) + 5 = 2 a) (10) b) (8) c) (50) d) none or 0''. a
*June 26, 2010*

**algebra**

thanks damon
*June 26, 2010*

**algebra**

Find the distance between (-2,9) and (-5,15) a)24.18 b)6.71 c)45.02 d)18.67 just need to know if my answer is right or wrong b
*June 26, 2010*

**alg**

thanks
*June 25, 2010*

**alg**

solve: sqrt (v) - 3 = 6 a) (-9) b) (81) c) (9) d) none or 0 b just need to know if my answer is wrong or right
*June 25, 2010*

**alg**

i got that as well Reiny but thats not one of the answer though
*June 25, 2010*

**alg**

thanks quidditch so much for your help :)
*June 25, 2010*

**alg**

simplify the following radical expression : 4 sqrt (81/16) a)3/2 b)2 c)2/3 d)3 a
*June 25, 2010*

**algebra**

simplify the following radical expression: 4 sqrt(625) a) sqrt (25) b) 25 c)5 d) no solution exists c
*June 25, 2010*

**algebra**

alright
*June 25, 2010*

**algebra**

find the distance between (-2,9) and (-5,15) a) 24.18 b) 45.02 c) 6.71 d)18.67 a
*June 25, 2010*

**algebra**

thanks quidditch
*June 25, 2010*

**algebra**

find the distance between (2/3,4) and (5/3,7) a) 10.06 b) 3.16 c) 3.46 d) 4.24 b
*June 25, 2010*

**algebra**

thanks Quidditch
*June 25, 2010*

**algebra**

find the distance between (0,-5) and (-6,8). a)6.70 b)13 c)14.32 d)3.87 c just need to know if my answer is correct or not thanks
*June 25, 2010*

**algerba**

simplify: sqrt (6/11) a) sqrt (66/11) b) 6 sqrt (11/11) c) 6 d) 6 sqrt (11)
*June 24, 2010*

**algebra**

thanks reiny
*June 24, 2010*

**algebra**

simplify: sqrt(24) a) 6 sqrt (2) b) 4 sqrt (6) c) 4 sqrt (2) d) 2 sqrt (6) d
*June 24, 2010*

**algebra**

simplify: sqrt (28) a) 4 sqrt (7) b) 7 sqrt (2) c) 2 sqrt (7) d) sqrt (7) c im just making show that they are correct sorry for posting up so many
*June 24, 2010*

**algebra**

yeah thats what i meant sorry
*June 24, 2010*

**algebra**

simplify: sqrt (7/9) a0 sqrt (7) b) sqrt (63/3) c) sqrt (63/3) d) sqrt (7/3) d
*June 24, 2010*

**algebra**

thanks jen
*June 24, 2010*

**algebra**

simplify: sqrt (121/9) a) 11/3 b) sqrt (11/3) c) sqrt(11 / sqrt 3) d)3 sqrt (11) a is the answer
*June 24, 2010*

**algebra**

thanks damon :)
*June 24, 2010*

**algebra**

solve:t - sqrt(6t - 9) = 0 a) none or 0 b) (-3,3) c) (3) d) (-3) c
*June 24, 2010*

**algebra**

thanks jen :)
*June 24, 2010*

**algebra**

simplify the following radical expression: sqrt (3) * sqrt (3) a) 3 b) sqt (3) c) none or 0 d)1 just need to know if my answer right or wrong a
*June 24, 2010*

**algebra**

thanks jen :)
*June 24, 2010*

**algebra**

simplify the following radical expression: sqrt (x) * sqrt (x) a) x b) sqrt (x) c)2 d) no soltuion exists just need to know if my answer is correct or not and i picked a
*June 24, 2010*

**algebra**

simplify the following radical expression; 4 sqrt (81/16) a) 2/3 b) 2 c) 3 d) 3/2
*June 24, 2010*

**algebra**

simplify : sqrt (12) - sqrt (27) a) - sqrt(15) b) -15 sqrt (3) c)- sqrt (3) d) -5 sqrt (3)
*June 24, 2010*

**algebra**

thanks reiny
*June 24, 2010*

**algebra**

Simplify: sqrt (21) (sqrt(7) + sqrt(3)) a) 7 sqrt (3) + 3 sqrt(7) b) 7 sqrt(3) + sqrt (3) c) sqrt (210) d) sqrt (147) + sqrt (63)''. a
*June 24, 2010*

**algebra**

thanks
*June 24, 2010*

**algebra**

Solve: 1 + sqrt (6 -n) = 3 a) (-2) b) none or 0 c) (2) d) (2,-2)''. c
*June 24, 2010*

**algebra**

find the midpoint of the segment with endpoints (1/3,-4) and (-2/3,6) a) (-1/3,2) b) (-1/6,1) c) (-1/2,1) d) (1,-1/6)
*June 18, 2010*

**algebra**

thanks damon
*June 18, 2010*

**algebra**

Simplify: 2 sqrt (3) + 4 sqrt (3) a) 18 b) sqrt (9) c) 8 sqrt (3) d) 6 sqrt (3) d
*June 18, 2010*

**algebra **

thanks damon
*June 18, 2010*

**algebra **

Simplify: ( sqrt (2) + sqrt (3) ) ( sqrt (2) - sqrt (3) )? a) 2 - 2 sqrt (6) - 3 b) -1 c) 2 + 2 sqrt (6) - 3 d) 5 i just need to know if my answer or right or wrong. i think the answer is b thanks
*June 18, 2010*

**algebra**

thanks
*June 18, 2010*

**algebra**

Find the distance between (2/3,4) and (5/3,7) a) 3.16 b) 4.24 c) 3.46 d) 10 .06
*June 18, 2010*

**algebra**

the correct answer is c
*June 18, 2010*

**algebra**

simplify the following radical expression : 4 sqrt (625) a) 25 b) sqrt (25) c) 5 d) no solution exists i think a
*June 18, 2010*

**algebra**

alright thanks mathmate
*June 17, 2010*

**algebra**

simplify the following radical expression: 3 sqrt (-27) a) -3 b) 3 c) 0 d) no solution exists do i write the sqrt like this or do i write like this sqrt () 3 -27 please show me the correct way to write it thanks
*June 17, 2010*

**algebra**

thanks jen and mathmate
*June 17, 2010*

**algebra**

simplify the following radical expression: sqrt x * sqrt x a) x b) sqrt x c) 2 d) no solution exists do you know any site that will help me with the square roots? thanks!
*June 17, 2010*

**Financial officer**

If the finance officer who is the interviewer ask a question and ask the question again in a different way that is "overuses questions". I need to know what happens when the interviewer ask overuses questions. What would be the candidates feel or respond and should ...
*June 9, 2010*

**Financial officer**

What happens when the interviewer or manager overuses questions?
*June 9, 2010*

**1st grade**

can you name a story where an animal needs help and no other animal will help them?
*June 1, 2010*

**computers**

A small startup software developer company needs to create a program that will calculate the pay of its employees. For the first version of the program, the company wants the program to accept an employee’s name, the number of hours the employee worked, and the hourly pay...
*May 26, 2010*

**Math**

A basketball player has a 40% shooting average from the free-throw line. If she takes two free throws, estimate the probability that she will make both of them. Use the following list of digits which was taken from a table of random numbers. Let the digits 0-3 represent a made...
*May 24, 2010*

**Math**

What is the measure of the point for a star shaped polygon with 8 points and a dent angle of 130 degrees? How do I work this out?
*May 23, 2010*

**Math**

What is the measure of the point angle for a star-shaped polygon with 8 points and a dent angle of 130 degrees?
*May 23, 2010*

**math**

$36.80 + 56%=
*May 23, 2010*

**Math**

Suppose that a given parallelogram is not a rhombus. Which of the following can you conclude about this parallelogram? A) Its diagonals are perpendicular bisectors of each other. B) It is a square. C) Its sides are not all congruent. D) All of the above I picked C.
*May 23, 2010*

**math**

x+4/2x*6x^2/x^-16= (x+4)/2x*6x(x)/(x+8)(X-8) rational expression using factoring could some check this.
*May 22, 2010*

**math**

8x^3+125 (2x)^3+(5)^3 (2x+3)(5x^2-6x+25) check this for me
*May 17, 2010*

**9th grade**

Is this anwser right 1,2,9,28,49
*May 17, 2010*

**Math**

I still don't understand. Could you explain. I don't know what any of this means.
*May 16, 2010*

**Math**

Use the discriminate to determine how many real number solutions the equation has. s^2 - 5s + 6 = 0
*May 16, 2010*

**Physics**

A body moves in rectilinear motion along the x-axis with an acceleration of a = 24 - t - 6 t^2 . Starting with an initial position at the origin (x = 0) and an initial velocity of 4 ft/s to the left (along the negative x-axis), what is the position of the body at the end of 4 ...
*May 14, 2010*

**Chemistry**

i need to find the; [Cl-] in PbCl2 solution,[Pb2+] in PbCl2 solution, and the ksp given: PbCl2(s)--> Pb2+(aq)+2Cl-(aq) Temp of solution =20.2 volume of Pbcl2 solution=25.00ml mass of dry AgCl2(g)=0.2543g #moles : AgCl(s)=1.77e-3 Cl(aq)=1.77e-3 Pb2+(aq)= 8.85e-4
*April 26, 2010*