Friday
August 1, 2014

Posts by Blah


Total # Posts: 72

math
It will cost $0.15 to cover 1000 cm² with paint. About how much will it cost Chen to paint his office? Show your work.

english
thank you

english
Which of the following is true regarding a restrictive adjectival clause? A. It will follow a general noun and is not set off by commas. B. It will be set off by commas. C. It will typically include the relative pronoun which. D. It will follow a proper noun. i think it might ...

history
Which of the following statements is true regarding the construction of the transcontinental railway? A. The Sierra Nevadas were the most difficult obstacle for the Union Pacific Railroad. B. Most workers for the Union Pacific Railroad were Chinese. C. Most workers on the Cen...

physics
Vector A has magnitude 73 units and direction, counterclockwise from east, of 5.5 degrees. What is the value of its x-component to 1 decimal place?

physics
An 80 kg crate was slowed to a stop when a frictional force of 160 Newtons was applied. It was originally traveling at 5.5 m/s. What distance did the box travel before it came to a stop? m. Round to first decimal.

Math Limits
(x^n-1)/((x-1) )=(x-α^1 )×(1-α^2 )×………..(x-α^((n-1)) ) How do we prove that n = the multiplication of the second term using limits and l'hopital's rule.

math
33%

Physics
If 3.25x10-3 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the current through this cell in amperes? Assume that the gold ions carry one elementary unit of charge

Physics
If 3.25x10-3 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the current through this cell in amperes? Assume that the gold ions carry one elementary unit of charge

physics
a playground slide is a place inclined at 48 to the horizontal. a child of mass 25 kg slides down the slide for 4m. calculate the potential energy lost by the child

Physics
Light cannot be linearly polarized by: transmission reflection diffraction diffraction

Physics
Thank you!

Physics
Which of the following is correct for the two coherent light waves to produce zero light? The light waves should travel in perpendicular directions. The light waves are in phase with each other. The light waves are out of phase with each other. The light waves should pass thro...

Physics
Thank you! :)

Physics
When an electron moves 2.5 m in the direction of an electric field, the change in electrical potential energy of the electron is 8x10-17J. What is the strength of the electric field that causes the change in potential energy? 320 N/C 200 N/C 20 N/C 3.2 N/C I'm clueless, bu...

English
Hinders ability to function starting with dis il or not and it has 10 letters. The 5th letter is b and the 7th is l and the 9th is a

chemisty
Calcium carbonate can be decomposed by heating according to the equation Below. WHat is the percentage yield of calcium oxide in this reaction if 12.6g of CaO is obtained when 25.9g of CaCO3 is heated ? CaCO3(S) -> CaO (s) + CO2 (g)

math
A prism has 10 faces.How many faces does a pyramid with the same base have?

5th Grade Math
im guessing quarts?

math 2nd grade
otis.. because divide the diamond into 4 pieces, then 8. Otis does one fourth

us history
I seriously do not know. and here i was looking for the answer myself.

english
i disagree (tell me if im wrong tho) but shuldnt the t in the YMCa be capitalized?

english
jake!!!!!! u lieeeeeeeee its b

english
jake!!!!!! u lieeeeeeeee its b

Chemistry
idk idk idk you tell me idk idk

Spanish
blah blah blah

Physics
At the top of a pole vault, an athlete actually can do work pushing on the pole before releasing it. Suppose the pushing force that the pole exerts back on the athlete is given by F(x)= (150 N/m)x - (180N/m^2)x^2 acting over a distance of 0.20 .

Child Care
Numbers 1& 2 are wrong...it should be D for both

general chemistry.
The nutritional calorie (Calorie) is equivalent to 1 kcal. One pound of body fat is equivalent to about 4.1 103 Calories. If an athlete expends 1635 kJ/h, how long does she have to play to work off 1.0 lb of body fat?

science-chemistry
A piece of metallic iron (10 moles) was dissolved in concentrated hydrochloric acid. The reaction formed hydrogen gas and iron chloride. How many moles of iron (II) chloride were formed? Don't forget the units.

Science
Compared to the number of protons how many electrons does the carbonate ion have

math
It is 22

geometry
M is the midpoint of Symbol for Segment A B.. Find the coordinates of B given A(7,-2) and M(10,10). Show your work for credit

Physics
In the javelin throw at a track and field event, the javelin is launched at a speed of 25 m/s at an angle of 30.7° above the horizontal. As the javelin travels upward, its velocity points above the horizontal at an angle that decreases as time passes. How much time is req...

Math
The sum of Billy's and his sister Diane ages is 37. If three years ago Billy was 11 years older than Diane, then what is the age of each of them right now?

english
why does arthur first pull the sword from the stone

Physics
Bobby, a 100 kg football player has a fever of 29 degrees C. What mass of water must evaporate from his body to cool him to 27 degrees C?

Math 6th
I dont know

chemistry 2
if the equation is right: 2/1=square root x/32 so square both sides 4=x/32 x=4*32 x=128 or tellurium

9th grade
prophase dahhh

physics
Three vectors are given by = 1.0 + 3.0 + -4.7, = 2.0 + 2.0 + -4.0, and = 3.0 + -4.2 + -4.0. Find (a)·( × ) and (b)·( + ).

physics
A car is driven east for a distance of 42 km, then north for 25 km, and then in a direction 31° east of north for 26 km. Determine (a) the magnitude (in km) of the car's total displacement from its starting point and (b) the angle (from east) of the car's total dis...

algebra
they like to fascinate (fasin eight)

physical science
the solid has a mass of 180g. what is the density of the solid?

Psychology
The psychology books we are given are very unhelpful. Ms. Sue has actually said more than once that axia's books are VERY confusing. They 'overly word' things I believe is what she said. Yes, reading the material DOES NOT help. This class is the only class that I h...

chemistry
The instruction booklet for your pressure cooker indicates that its highest setting is 13.5psi . You know that standard atmospheric pressure is 14.7psi , so the booklet must mean 13.5psi above atmospheric pressure. At what temperature will your food cook in this pressure cooke...

Algebra 1
1/12(48+24b)=2(17-4b)

chemistry
what is an atomic mass unit? what are the approximate masses of the subtomic particles, expressed in atomic mass units?

science
the latest information on the 'big bang' theory

Chemistry
fhggfd

ALGEBRA WITH PIZZAZZ
what do the fans sing at university of california football games?

literary
"nice hat" but its really ugly!

Science
Alright i forgot my science book and theres a paper due soon so i was wondering if i could get some answers to these questions. List Three Ways That Substances can move in and out of a cell. In diffusion, molecules move from an area of _________ concentration to an area of ___...

math
What is one way to find a missing side length in a pair of similar figures?

math
blah! this is cheating! isnt it?

english 2
Serious Story They were all slouching in their seats; making it obvious they didn’t want to be there. One was holding on to practically cradling his blue bandana, another was looking at a bruise he had received during a fistfight earlier that day. There were eight of them...

socail studies
can you help me with confearcay homework? Please repost your question, check your spelling, and be more specific. I have no idea what "confearcay" means. Thanks. =) What did the U.S. government do to the Cherokees and other tribes in the 1830's? This is a great s...

U.S.HISTORY
could hitler invated England or not? i need to know both sides. The word "could" means "was possible" - so was it possible that Hitler could have invaded England? Of course it's possible - but he didn't. http://www.google.com/search?q=britain+preven...

music before the 1920's
i need to know what music was like before the 1920's, before jazz. Thank you for using the Jiskha Homework Help Forum. Here's a site I like a lot! http://kclibrary.nhmccd.edu/music-1.html

Environmental Science
where the hell is the answer??

acids and alkalis
This site is crap

Science
1324679111213246579

Science
1324679111213246579

Science
1324679111213246579

Science
1324679111213246579

Science
blah

Science
blah

Salem Witch Trials
how do historians interpret theses events? do they think they were necessary in order for the society to advance No. The witch trials were an aberration and took a step backward in the advancement of society. They attempted to blame a scapegoat for society's ills. This the...

chemistry-Dalton
what flows exist in Dalton's model of the atom? Dalton had a flawed view on what made up different elements: He had the view that atoms the same element had the same mass, and different element atoms had a different mass. Only later did we learn of isotopes.

mathh (unit rate)
dont understand & dont write mean things on here!

stats
Eating raw fish (and enjoying it) is an acquired taste for many people who have never tried sushi. Ten people who had never before eaten sushi were asked to rate how much they liked it on a 100-point scale (100=fantastic, 0=yuck) on each of four occasions one week apart. The f...

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