Wednesday
October 1, 2014

Posts by Jordan


Total # Posts: 771

math
Mechanical energy is a kind of energy created by the physical movement or rotation, revolution etc of anything.Since most of the movements done and energy created are done by machines, it is named as mechanical energy
January 9, 2012

Math #Help Meee!!!!!!!!
|n|+3=7
January 9, 2012

Steve and Reiny
A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep WELL I HAVE THIS v=...
January 9, 2012

Math (Calculus)
A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep
January 9, 2012

Math (Calculus)
A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep
January 9, 2012

math
No, you can divide 23 by 4 and get 5.75, but you can't split people into 3/4's
January 9, 2012

math
So a write a word problem? Esna had bought wanted to buy stickers. Esna sister has 15 stickers and Esna always wants to have 3 times as much as the sister. How many stickers did she buy?
January 9, 2012

Calculus (Help please)
WELL I HAVE THIS v=1/3pi*r^2h v=1/3pi*r2(4r) v=4/3pi*r^3 dv/dt=4pi*r^2 2=4pi(7/4)^2 2=49pi/4 * dr/dt dr/dt= 8/49pi = 0.052 meters per minute
January 9, 2012

Calculus (Help please)
is the answer 8/49pi= 0.052 meters per minute
January 9, 2012

Calculus (Help please)
A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep
January 9, 2012

Help Math
Thanks Steve
January 9, 2012

Help Math
A circular pulley with a radius of 10 cm is turning at 12 revolutions per minute. How fast is a point on the edge of the pulley rising when it is 5 cm higher than the center of the pulley?
January 9, 2012

5th grade math
8/12 and 9/12
January 9, 2012

social studies
A limited government is a government that cannot interfere with personal liberties and individual rights much because it is against the law
January 9, 2012

math (Calculus)
A circular pulley with a radius of 10 cm is turning at 12 revolutions per minute. How fast is a point on the edge of the pulley rising when it is 5 cm higher than the center of the pulley?
January 9, 2012

help ss !!!!!!!!!!!!!!!
I believe 1 is b and 2 is b as well
January 9, 2012

6th grade math-ms. sue
The Control is something you kept the same. There is not enough information for me to say what exactly what it is. For example, if you used the same wheel bearings the entire time that would be the control.
January 9, 2012

calculus
A spherical balloon is leaking air at 2 cubic inches per hour. How fast is the balloon's radius changing when the radius is 2 inches.
January 9, 2012

math (Caluclas)
Oh okay. I understand that, i was just not understand where the 9 came from, but i see now. Thank you both
January 9, 2012

math (Caluclas)
Sorry about that Reiny. I have a quick question though, where does the 9 come from?
January 9, 2012

math (Caluclas)
A spherical ballon is leaking air at 2 cubic inches per hour.l How fast is the ballons radisu chancing when the radisu si 3 inches.
January 9, 2012

4th grade Math Help
Nope, Because 23 * 3 = 69 and Mr Brooks has only 66 acorns
January 8, 2012

adv. math
I NEED THIS ANSWER FAST!!!
January 8, 2012

adv. math
How do you show work for this problem, in a percent equation form?~ $3680 at 6.75% for 2 1/4 years
January 8, 2012

Physics
You would convert 290 miles into 1531200 ft which then the answer would be a531200 ft/sec
December 28, 2011

Physics
Fe = mg = 645 kg * 9.8 N/kg = 6321 N. = Force of elevator. a. P = F * d/t = 6321 * 2.75 = 17382.75J That is the increase in potential, now we must add the increase in kinetic energy, which is: Ws = 1/2 m(Vf)^2 - 1/2 m(Vi)^2 Ws = 1/2 645kg(1.26m/s)^2 - 0 Ws = 512.001J adding ...
December 14, 2011

math
my brain hurts
December 7, 2011

math
He saved $2,500 in April. He earned $5,000 in May. Thus he had a total of $7,500 Total spent in May - $4,200 + $2,500+X X= Amount saved in May Thus total = Amount spent + Amount saved Thus total = $4,200 + #2,500 + X + X $7,500 = $4,200 + $2,500 + 2X Solve for X $7,500 = $6,...
December 7, 2011

math
a square room has sides that each measure 5 feet.How many square feet of carpet is needed to cover the rooms entire floor?
December 5, 2011

calculas
A car braked at a constant deceleration of 45 ft / s2, producing a skid mark measuring 105 feet before coming to a stop. How fast was the car travelling when the brakes were first applied?
December 4, 2011

MATH!!!! 7th
nope
December 1, 2011

MATH!!!! 7th
yeah its the question i need to know what the x is if the mean is 112
December 1, 2011

MATH!!!! 7th
100,121,105,113,108,x; mean 112
December 1, 2011

Physics
A 0.165-kg ball, moving in the positive direction at 10 m/s, is acted on by the impulse shown in the graph below. What is the ball's speed at 4.0 s?
November 30, 2011

physics
Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. a.) Calculate the speed of a 103-kg ...
November 30, 2011

SOCIAL STUDIES!!!
in what ways did whitneys system improve products
November 28, 2011

8th grade math
Add up the ratios 3:7:17 to get 27. Since ratios can be scaled, we can scale the ratios to have a sum of 81 by multiplying the ratios by 3,i.e. 3:7:17 ß 9:21:51.
November 28, 2011

SOCIAL STUDIES!!!
what was eli whitneys main contribution to manufacturing
November 28, 2011

SOCIAL STUDIES!!!
how did slater and lowell contribute to industry in the united states?
November 28, 2011

social studies
how did turnpikes,canals,and railroads affect the way that people in different states interacted
November 28, 2011

social studies
thx :-)
November 28, 2011

social studies
why did railroad construction end canal building
November 28, 2011

math
two horses gallop off in the sam direction. Trigger travels25 kilometers per hour. Silver travels 30 kilometers per hour. How long before the horses are 3 kilometers apart?
November 21, 2011

Physics
4.25sin40= Y component 4.25cos40= X component
November 17, 2011

english
the stems measure a foot in diameter=transitive people use bamboo in many ways=transitive in japan the hollow stems serve as water pipes= transitive
November 16, 2011

algebra
Eight times the opposite of a number is 36 less than the product of 4 and the number. What is the number?
November 16, 2011

calculus
Find the amount of a continuous money flow in which $175 per year is being invested at 8%, compounded continuously for 20 years.
November 15, 2011

math
integrate (using substitution). (6x^5)(e^(x^6))dx
November 14, 2011

Stats
84 and18.2 percnt not likely but 11.2 is likely
November 9, 2011

geometry
Point A is the incenter of (triangle) PQR. Find each measure. ARU AU QPK
November 8, 2011

GEOMETRY
LINE CD IS MEDIAN OF TRIANGLE ABC AND M IS THE CENTROID.MMIF CM = 14 WHAT IS CD
November 7, 2011

geometry
line CD is a median of angle ABC and M is the centroid, If CM = 14 what is CD
November 7, 2011

physics
An airplane flies north at a constant speed for 6h and covers a distance of 2400km. What is the plane's velocity? The acceleration?
October 19, 2011

pre-calculus
A developer wants to build homes on a rectangular plot of land 4 kilometers long and 3 kilometers wide. In this part of the city, regulations require a greenbelt of uniform width along two adjacent sides. The greenbelt must be 10 times the area of the development. find the ...
October 14, 2011

Physics
A shell is fired with velocity having horizontal and vertical components ux, uy. At the highest point of it's path the shell explodes into two fragments of mass m1, m2, which separate in a horizontal direction. The explosion generates kinetic energy E. Show that the ...
September 22, 2011

fith grade math
this summer it has rained only 1/4 as much as last summer . 12 inches of rain fell last summer. what amount of rain has fallen this summer
September 19, 2011

physics
Hello, can anyone help me this problem? The author's cat enjoys chasing chipmunks in the front yard. In this game, the cat sits at one edge of a yard that is w = 32 m across (see figure), watching as chipmunks move toward the center. The cat can run faster than a chipmunk...
September 16, 2011

geometry
find other endpoint of line segment with a given endpoint and midpoint endpoint (2,1) Midpoint (-7, 2)
September 12, 2011

math
i think it's B but i'm not sure
September 6, 2011

math
Max has 12 pairs of socks. Of them, 6 pairs are blue, 3 pairs are brown, and 2 pairs are white. Max wants to know what fraction of the socks are blue or brown. How can he find the numerator? a) Add 6+3+2 b) Add 6+3 c) Subtract 11 from 12 d) Subtract 9 from 12
September 6, 2011

math
you download 12 new songs to your MP3 player. then you delete 5 old songs. write each amount as a integer.
September 6, 2011

Chemistry
Mass of evaporating dish = 41.36 g Volume of saturated NaCl solution = 10.0 mL Mass of evaporating dish and NaCl = 44.50 g Mass of sodium hydrogen carbonate = 0.49g What is the morality(M) of the sodium chloride solution if you prepare in 1 liter of solution? How do you ...
August 30, 2011

Chemistry
Why are covalent bonds weak in the presence of heat but strong in the presence of water?
August 28, 2011

AP Geography
That's the only reason I've turned to this site for help. I burnt out on 4 other sections like this and I need help. Ugh.
August 16, 2011

AP Geography
Oh yes, I do appologize, I have to deal with a reeeeal stupid confusing text book. I have NO idea what Near Abroad is, I didn't know if it was some term I wasn't use to hearing or what. I've been using Russia as a whole country compared to Europe & it's ...
August 16, 2011

AP Geography
I need a comparison of Europe's economy versus Russia and the Near Abroad's. I've done like five other topics, writing two or three pages for each, can I just get some quick help? I need three or more idea's I can toss together in words. Websites are welcome.
August 16, 2011

Physics
I had a question actually... why is your Vx related to the sin? and your Vy related to the cos? isn't it usually the other way around?
August 16, 2011

Calculus
When Pal throws his beach ball straight up in the air, it's height h at time tis given by h=(-1/2)gt^2+v(sub 0). Find the velocity of the ball when t=0.
August 3, 2011

Calculus
When Pal throws his beach ball straight up in the air, it's height h at time tis given by h=(-1/2)gt^2+v(sub 0). Find the velocity of the ball at time t.
August 3, 2011

Chemistry
How do the number of electrons found in the element’s outer shell relate to their position in the period table? -- I have an idea, but I'm not sure how to verbalize it, can you please help? Thanks! :)
July 28, 2011

Calculus
A ball of radius 14 has a round hole of radius 8 drilled through its center. Find the volume of the resulting solid
July 20, 2011

AP CHEM
Comparing the Noble Gases to the Alkaline Metals, what are major similarities and major difference between the two?
July 18, 2011

AP HS Chemistry
I need help. In simple english please, what is Hund's Rule, Pauli Exclusion Principal, and the Aufbau Principal? I need to know these. Please try to be simple as possible because I'm not understanding right now, haha. Thanks!! :)
July 18, 2011

geometry
triangles ABF and EDG are congruent. triangles ABF and GCF are equalateral. AG = 24 and CG = 1/5 AB. find the total distance from A to B to C to D to E
July 15, 2011

Physics
F = ma for the whole bike as a unit. The force F that is causing the bike to move is your resistive force 147N. a = R*alpha, so you should have m=F/R*alpha so m = 147/(.32*4.5) = 102.083 which is the answer given by OP as being correct.
July 9, 2011

Physics
Which of the following contains the most mechanical energy? A 10 kg ball at the top of a hill 10 meters high A 5 kg ball rolling with a velocity of 12 m/s A 10 kg ball rolling with a velocity of 5 m/s A 5 kg ball at the top of a hill 10 meters high I think it is A
June 29, 2011

Physics
Is an airplane flying round trip at a constant speed an example of uniform circular motion or is a record player rotating at a record speed?
June 29, 2011

Physics
Can gravity friction and tension be all centripetal forces?
June 29, 2011

Physics
wait just figured it out pe=mgh
June 28, 2011

Physics
A 5 kg ball is initially at rest at the top of a hill 10m high. If it rolls down the hill (converting all of its potential energy to kinetic energy,) what is the maximum kinetic energy it could have at the bottom of the hill? -I am not sure what formula to use?
June 28, 2011

PHYSICS
ohh i finally get it!
June 28, 2011

PHYSICS
Which machines has more mechanical advantage pulley or incline plane? I asked this question before but did not quite understand the answers that were given to me. I think that the incline plane has more mechanical advantage in a friction less environment.
June 28, 2011

PHYSICS
haha okay thank you for your help!
June 28, 2011

PHYSICS
what would happen if it was a friction less environment?
June 28, 2011

PHYSICS
When you have more pulleys does the mechanical advantage and efficiency increase or decrease?
June 28, 2011

PHYSICS
Does mass affect mechanical advantage in any way?
June 28, 2011

PHYSICS
So the pulley has more mechanical advantage and the incline has more efficiency?
June 27, 2011

PHYSICS
Which simple machine has more mechanical advantage a pulley or a inclined plane? PlEASEE HELP SUPER CONFUSED
June 27, 2011

math
B is the midpoint of segment AC. AB = 5x and BC = 3x + 4. Find AB, BC and AC.
June 27, 2011

Math
If a faucet is dripping at the rate of 7.5 drops per minute and there are 20 drops in a milliliter, how many liters of water are wasted in a 30-day month?
June 23, 2011

Math
An access ramp enters a building 1 meter above ground level and starts 4 meters from the building. How long is the ramp? If it is not possible, write “not possible” and explain why it is not possible.
June 23, 2011

AP English Lang. & Comp.
My Assignment: Read the book, 'Animal Farm' by George Orwell. After reading the book, create a composition that examines the similarities and differences between the Russian Revolution and the events in this novel. Research any other 'rebellions' that have ...
June 21, 2011

Chemistry
Why is iron not used to make surgical and other knives: Explain your reasons.
June 16, 2011

Chemistry
What transitional metal might be suitable to manufacture indestructible spectacle frames: Explain your choice.
June 16, 2011

Chemistry
What is a cathode and an anode? In the formula for table salt: NaCl, which part of the compound is a cathode and which part is the anode? ****** I don't get any of this stuff!?! D: Due tomorrow!! ))):
June 16, 2011

physical science
166.66
June 12, 2011

Chemistry
Is this answer correct? Calculate the molar concentration of sodium hydroxide solution if 36.00mL of this solution were required to neutralize 25.00 mL of a 0.2000 M solution of hydrochloric acid. .0288M??????
May 25, 2011

algebra
Find the value of f(0) if f(x) = x2 - 3x + 2 / x + 1
May 25, 2011

algebra
Simplify the expression: 3x^2 − 3y + 8x − 5x^2 + 12y
May 25, 2011

science
what variables can affect the number of eggs laid by a chicken?
May 9, 2011

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