Monday
March 27, 2017

# Posts by Josh

Total # Posts: 1,839

physics
the elecric potential at a certain point is space is 12 V. What is the electric potential energy of a -3.0uc charge placed at that point? is it +36uj?
March 8, 2012

physics
A -4.0UC charge is located 0.45m to the left of a +6.0uc charge. what is the magnitude and direction of the electrostatic force on the positive charge?
March 8, 2012

english
I have a Question about The Merchant of Venice By william shakspear. What are Some promises made in the stor??? Please help!
March 4, 2012

math
For the next three problems, evaluate each expression if x = −2, y = 4, and z = −3. (4 − 2x)−2 (y − z)−3 (x − 5y)0
March 1, 2012

math
Rewrite using only positive exponents: x−5y3. ??
March 1, 2012

math
Write an expression for the volume of a rectangular prism if the length is 5 feet shorter than some x amount, the width is 3 feet longer than x, and the height is x feet.
March 1, 2012

algebra
(-5,-2,) end point (-7,-5) mid point, how do I find another end point?
February 29, 2012

Spanish-Thank you Srs JMcGin and Ricardo8th grade
Sra, Thank you for responding. I use spanishtypeit to do accents but I actually forgot the accents in both words above Thank you again and thank you Ricardo also for responding
February 29, 2012

Thank you Ricardo-it was a spelling mistake with te should be de but I see where I made the other mistake. Thanks again.
February 29, 2012

I'm having a problem answering some questions we're learning about shopping and stuff like that so could someone check these please. 1. ¿Qué buscas cuando vas te compras? Busco variedad de cosas cuando voy me compro. 2. ¿Quien es la persona mas de ...
February 29, 2012

Mathematics
A rectangular block of lead with dimension 43 cm x 53 cm x 63 cm is melted to mould spherical balls of 3 cm radius. How many balls are made? (Round your answer to the nearest whole number and take Pi as 3.14)
February 29, 2012

algebra 2
Graph the function f(x) = –3x^3 + 9x^2 – 2x + 3 using graphing technology and describe the end behavior
February 28, 2012

Chemistry
I need help with finding the theoretical yield of Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g). So far I have 24.305 + 37.4688 = 61.7738 g based on the weight of MgCl2 + H2, but I'm not exactly sure what to do or if I've even started it properly. Also, if you could help ...
February 28, 2012

Precalculus
Solve Cos^2(x)+cos(x)=cos(2x). Give exact answers within the interval [0,2π) Ive got the equation down to -cos^2(x)+cos(x)+1=0 or and it can be simplified too sin^2(x)+cos(x)=0 If you could tell me where to go from either of these two, it would be great help.. Thankyou ...
February 23, 2012

ASHFORD
Identify two distinct fallacies you see committed in the media.
February 23, 2012

Algebra 2
My question involves "Graphic Representation of Radicals of the Second Order" I know that the length of the hypotneuse of a right triangle equals the square root of the sum of the lengths of the two legs. The problems I'm having trouble with are the square roots ...
February 23, 2012

math
(4m-20)(7m)/(5m-25)(28)
February 23, 2012

chemistry
3. Answer the following questions: For each question show a balanced chemical equation and show all calculation for full credit. a. Assume that you had 100 nuts (N) and 75 bolts (B). How many NB molecules could you make by screwing one nut onto each bolt?
February 23, 2012

consumer math
6. These items were on Cyril's last credit card statement. Last Balance Payment Periodic Rate New Charges \$567.18 \$120.00 1.56% \$45.17 What is his new balance? (Points : 1)
February 22, 2012

science
i come u face???
February 22, 2012

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 18.9 g of biphenyl in 26.4 g of benzene?
February 22, 2012

consumer math
23. Jeremy had a starting balance of \$122.00 in his savings passbook. He made these transactions: Deposits of \$68.52 and \$46.35; Withdrawals of \$95.00 and \$20.50; Interest \$1.50. What is his final balance? (Points : 2) \$125.22 \$120.22 \$112.22 \$122.87 24. Banks pay interest on ...
February 21, 2012

Chemistry
When 4.73 g of a nonelectrolyte solute is dissolved in 965 mL of water at 28 °C, the resulting solution exerts an osmotic pressure of 945 torr. What is the molar concentration of the solution? How many moles of solute are in the solution? What is the molar mass of the solute?
February 21, 2012

statistics
What probability value should be used for determining whether the modified process results in a defect rate that is less than 6%. I got part a and b of the question but I am completely lost on what this is asking me. Can anyone help?!?
February 10, 2012

US Government
Doing my homework!
February 8, 2012

chemistry
When do you put the suffix (g) after a compound?
February 2, 2012

statistics
the answer is the standard deviation is 6 but i don't know how to get that
January 31, 2012

statistics
the distribution of scores on a test is mound shaped and dsymmetric with a mean score of 78. if 68 percent of the scores fall between 72 and 84, what is the stand deviaition
January 31, 2012

trigmsu
csc(θ) / cot(θ)
January 30, 2012

trig
Use a ratio identity to find tan(θ) if given the following. sin=6/sq rt 37 and cos 1/sq rt 37
January 26, 2012

trig
Find the remaining trigonometric ratios of θ if sin(θ) = -1/6 and θ is not in QIII cos tan cot csc sec
January 26, 2012

trig
Give the reciprocal of the following. 7/15
January 26, 2012

trig
If sin(θ) = 8/17 and θ terminates in QI, find cos(θ)
January 26, 2012

trig
Find y if the point (7, y) is on the terminal side of θ and cos(θ) = 7/25
January 25, 2012

Chemistry
A certain substance has a heat of vaporization of 34.65 kj/mol. At what kelvin temperature will the vapor pressure be 3.50 times higher than it was at 331 k?
January 25, 2012

A pair of shorts would cost 12 dollars. I solved it by setting the two equations equal to one another. 2T+2S+42=T+3S+45 Minus 42, minus t, minus 2S gives: T=S+3 So you know S is 3 more than T. Then just trial and error solve to get shorts are 12 dollars and tshirts are 9.
January 24, 2012

geometry
In parallelogram ABCD, BC = 8, DC = 12, and measure of angle D is 50 degrees. Find the area of the parallelogram to the nearest tenth.
January 23, 2012

physics
A piece of metal with a mass of 1.9 kg, speciﬁc heat of 200 J/kg ◦ C, and initial temperature of 100 ◦ C is dropped into an insulated jar that contains liquid with a mass of 3.9 kg, speciﬁc heat of 1000 J/kg ◦ C, and initial temperature of 0 &#...
January 17, 2012

I'm sorry the computer jammed on an earlier post and I couldn't do anything-so here is the problem I need asistance with Please check and offer advice-I'm NOT SURE IF I USED CORRECT FORMULAS-thank you the problem is List the center, vertices, and foci of hyberbola ...
January 13, 2012

I think I did the vertices and foci incorrect This is a verticl hyperbola, correct? So formula for vertices would be (h, k+-a)=(8,2+-6)=(8,8) (8,-4) Foci should be c^2 = a^2 + b^2 8^2 + 2^2 = 64+36 c=10 foci=(8,2+-10) (8,-8) (8,12)
January 13, 2012

AlgebraIIPlease check-sorry my computer jammed
I'm sorry the computer jammed and I couldn't do anything- the problem is List the center, vertices, and foci of hyberbola for following equation: (y-2)^2/36 - (x-8)^2/64 = 1 b=6 a=8 Center(8,2) Vertices=(h,k+b) (h,k-b)=(8,8) (8,-4) Foci =(h +-c,k) c^2 = a^2 + b^2 c^2...
January 13, 2012

algebra
¯3 x 5 + ¯36 ÷ ¯3 -- ¯7 — 10 + 6 x ¯8 ÷ ¯24 —1 =
January 13, 2012

algebra 1
formula A=P(1+r)^t An account earning interest at a rate of 4% has a principal of \$500,000. If no more deposits or withdrawals are made, about how much money will be in the account after five years?
January 5, 2012

penn foster Main ideas
Both Greta and Fred were on the bus that arrived in Pittsburgh. Fred was glad to be home. He looked forward to visiting with old friends. Greta, on the other hand, dreaded seeing her old boyfriend. She already missed her days in New York City. 16. What can you most safely ...
January 5, 2012

algebra 1
The midpoint of XY is point M(-12,5). If the coordinates of X are (3,-3), what are the coordinates of Y?
January 4, 2012

math
Frances sells greeting cards. The materials for a card cost \$2.40, and she will include an 80% markup. What is the selling price of each card?
January 3, 2012

Physics
6meter west
December 18, 2011

algebra
-10-3/7x=5
December 18, 2011

Algebra
10A^8/7V^3 TIMES 49R^7/100A MULTIPLY AND SIMPLIFY
December 17, 2011

Algebra
THANK YOU!!!
December 17, 2011

Electric Power Tools
just checked you answers, 100% correct
December 15, 2011

Statistics
9. Assume the weight, W, of a randomly selected adult has a normal distribution with a mean of 175 pounds and a standard deviation of 10 pounds.. Find the probability, P(W < 190), that a randomly selected adult weighs less than 190 pounds.
December 13, 2011

Pre Calculus
Newton's law of cooling T(t)= Tm + (To-Tm)e^-kt, k >0\ Evaluate T(0). Simplify and explain the result I'm very confused on how to do this, i think i will be able to explain the result but if you could help me simplify this that would be great, Thank you very much.
December 12, 2011

trig
I get the second one, but the first I don't. What identity are you using for the first to get from line one to two?
December 11, 2011

trig
Getting ready for trig semester finals. Can't figure out how they are simplifying these equations. (these are the review not actual test) tanx-sqr3=2tanx and 2sin^2+sinx=0
December 11, 2011

Physics
C. A small force over a long time period. With the small force being divided by a larger number (time), it will have the least momentum.
December 9, 2011

science
Cool it
December 8, 2011

math
What is the scale on a map that shows two cities that are 400 mi apart as 2.5 in apart?
December 8, 2011

physics
what is your final velocity after 680 meters if you start out at 90km/hr and acceleration is 9 m/s
December 7, 2011

geometry
The scale drawing for a business office is drawn so that 1 cm = 2 ft. If the length of the model is 4 cm and the width is 9 cm, what is the actual area of the business office?
December 6, 2011

Physics
What is the acceleration of a proton in an electric field of 10^6 N/C?
December 6, 2011

Physics
What is the acceleration of a proton in an electric field of 10^6 N/C?
December 6, 2011

phi 103
Which of the following may not qualify as a falsifiable claim?
December 4, 2011

spanish
OHHHH I got it! Where does one go when one wants to shop at many different types of stores? Sometimes I'm such a simpleton.
December 2, 2011

spanish
I'm having problem here with number 5. Vamos al ______ could be any number of things... I would assume it's 'shopping' but that isn't accepted...
December 2, 2011

physics
A convex mirror has a focal length of 15 cm. A 3.0 cm high object is located 10 cm in front of this mirror. Where is the image located?
December 2, 2011

physics
A 5 meter diameter telescope is used to observe binary star systems. What is the minimum separation distance (perpendicular to the line of sight) for which the two stars can be resolved if they are at a distance of 1,000 light years = 10 m and they are observed in visible ...
December 2, 2011

physics
Light shines through a single slit whose width is 1.12 mm. A diffraction pattern is formed on a screen located 4.0 m away. The distance between the middle central bright fringe and the second dark fringe is 4.0 mm. What is the wavelength of the light?
December 2, 2011

physics
A light ray travels from water to air. If the ray strikes the water/air boundary at an angle of incidence of 46 degrees, what is the angle of refractiob in air? (n water = 1.33)
December 2, 2011

Physics
a 59kg student jumped off the back of a 42kg sailboat, the boat was already travelling at 3.1m/s before she jumped. if she jumpped off with a speed of 2 m/s, how fast was the boat moving? thanks for any help
December 1, 2011

Science
Are sunspots cooler or hotter spots in our sun? I think it's cooler
December 1, 2011

Science
What causes day and night? What's the difference between a solar eclipse and a lunar eclipse?
December 1, 2011

Science
How does Earth have seasons?
December 1, 2011

calculus
A growing boy who is 4 feet tall stands 8 feet from a 12 foot lamp post. The boy is growing at the rate of 3/4 inches per year. How fast is his shadow growing (in inches per year)?
November 25, 2011

physics
You need to move a 135-kg sofa to a different location in the room. It takes a force of 92 N to start it moving. What is the coefficient of static friction between the sofa and the carpet?
November 23, 2011

MATH
So none of these are correct? 2/3 divided 3/5 = 1 1/9 or 2/5?
November 22, 2011

Math
can you please let me know if these are correct: 1. 5 5/6 x 2 4/5 = 16 2. 2/3 divided 3/5 = 1 1/9 or 2/5? 3. 7/12 divided 2/3 = 7/8 4. 3 1/2 divided 3/4 = 4 2/3 or 2 5/7 5. 4 2/3 divided 7 = 2/3 6. 4 1/5 divided 1 2/5 = 3 7. 2/5 x 5/14 = 1//7 8. 2/3 + 1/7 = 17/21 OR 12/21
November 22, 2011

Pre Calculus
find all solutions of the equation 1. x^3+27=0 2. x^3-8=0
November 21, 2011

Pre Calculus
1. Find all rational zeros of the polynomial. Then determine any irrational zeros, and factor the polynomial completely. 3x^4-11x^3+5x^2+3x 2. Find the polynomial with leading coefficient 1 that has a degree of 4, a zero of multiplicity 2 at x=1 and a zero at x=2+i
November 21, 2011

Biology 11
the genotype of the hybrids of two pure-breeding pea plants that each have white flowers and round seeds (both traits dominant) would be?
November 20, 2011

Pre Calculus
Find a third degree polynomial P(x) that has zeros at x=-1, x=1, x=2 and whose x-term has coefficient 3?
November 20, 2011

Chemistry
A typical buffer used by biochemists is called Tris, which can be depicted as R3N. A buffer that is prepared by mixing 500ml of .05M R3N with 500ml of .05MR3NHCl at 25 C has a pH of 8.40. If this same buffer is placed in a cold room at 4 C the pH increases to 9.2. From this ...
November 17, 2011

social studies
What did the people of ancient Ghana have that the proto-Bantu-speaking people did not? What effects do you think this had on their descendants?
November 16, 2011

Physics
a) Find the acceleration of the block if the incline is frictionless. b)Find the acceleration of the block if the coefficient of kinetic friction between the block and incline is 0.12.
November 16, 2011

Physics
A block of mass m = 5.2 kg is pulled up a è = 24° incline as in the figure with a force of magnitude F = 34 N.
November 16, 2011

MATH
Please help me with these: 1. 5/8 + 5/6 = 2. 2 3/5 + 4 4/5 = 3. 13 1/2 + 7 2/3 = 4. 3/8 - 3/8 = Thanks!
November 15, 2011

MATH
Please help me with these: 1. 5/8 + 5/6 = 2. 2 3/5 + 4 4/5 = 3. 13 1/2 + 7 2/3 = 4. 3/8 - 3/8 = Thanks!
November 15, 2011

English
Are there any tutors on here that are familiar with The Canterbury Tales?
November 13, 2011

spanish
is this past or present tense Mi Papa escribio un cheque
November 10, 2011

Math - Calculus III
Find the double integral of f (x, y) = (x^7)y over the region between the curves y = x^2 and y = x(3 - x).
November 8, 2011

Math
Find the double integral of f (x, y) = (x^7)y over the region between the curves y = x^2 and y = x(3 - x).
November 8, 2011

political science
In need of help on my political science homework please help with these questions Only these questions left! One reason why the US has only 2 major parties is that it has: A. insufficient opportunities to bribe candidates B. too much involvement by religious groups C.single-...
November 6, 2011

Chemistry! HELP;
An atom of potassium (K) has 19 protons: 18 electrons in its inner electron energy levels and 1 electron in its outer energy level. What is the easiest way for this atom to get a filled outer energy level? What is formed?
November 6, 2011

algebra
can you please help me with these 1. -5/c = 1/3 2. k/8 = -2/5 3. 6/z = -3/5
November 1, 2011

math
Please help me with these 1. -5/c = 1/3 2. k/8 = -2/5 3. 6/z = -3/5 Thank you
November 1, 2011

Botany
During the last part of cellular respiration in the mitochondrion, electron flow is tapped and used to make ATP. Where do the electrons end up when they are finished flowing?
October 31, 2011

Math
Find the general solution of the equations csc^2 θ =4/3.
October 30, 2011

Pre Calculus
using the factor theorem to show that x-c is a factor of P(X) for the given values of c, and factor 1. P(x)=x3-5x^2+8x-4; c=1
October 29, 2011

Pre Calculus
Exponential growth and decay find the half life of a radioactive substance if 220 grams of the substance decays to 200 grams in 4 years?
October 25, 2011

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