Sunday
December 21, 2014

Posts by Jack


Total # Posts: 1,366

Physics
and 10 d), please
June 15, 2013

Physics
f= 1/(2*pi*sqrt(L*C))?
June 15, 2013

Physics
10 b) please!
June 15, 2013

Physics
10 b) 10 d) and 11 c) please!!!!
June 15, 2013

Physics
robbo 10 b)
June 15, 2013

Physics
robbo, the same that 9 a)
June 15, 2013

Physics
Please 11 c) and 10!
June 15, 2013

Physics
I think a b is missing! t*s^2/(2*PI^2*b*(b^2-a^2) )
June 15, 2013

Physics
8 f) Result of e multiplied by 2*pi*b*d
June 15, 2013

Physics
Please OVNI, 11 c)
June 15, 2013

Physics
BG, do you have 10 c and d?
June 15, 2013

Physics
BG, 8 d) B= mu_0*(r^2-a^2)*s/(2*r*pi*(b^2-a^2))
June 15, 2013

Physics
5 e) v= m*g*R/(B^2*W^2)
June 15, 2013

Physics
Hi BG, can you put the results for 8 a, b,c?
June 15, 2013

Physics
Please, problem 8!!!
June 15, 2013

Physics
Phy, do you have problem 8?
June 14, 2013

english
nhfhhvdmchfchnfjufutjgyfghbvhjuvfvfjfjjjn
June 8, 2013

algerbra
What is the median and the 1st or lower quartile of the following data: 4, 12, 15, 20, 24, 30, 32, 35
June 6, 2013

Algebra
The class average on a math test was 82 and there are 8 students in the class. If seven of the scores are 80, 90, 78, 100, 76, 74, and 82, what must the 8th score be to produce the average of 82?
June 6, 2013

physics
What is the radius of an automobile tire that makes a complete turn in 0.1 sec and has a linear speed of 24.0 m/s?
June 4, 2013

Statistics
For the mean add them all up and divide by 6. For the median line them in order. Find the average of the middle two numbers
May 26, 2013

Calculus
P = 2L + 2W 150 = LW 150/L = W P = 2L + 300/L Can you finish from here?
May 26, 2013

algebra
x - 2.5 < or equal to 8
May 17, 2013

math
Start by arranging the numbers in order Plant 1 4 10 20 25 Since there are 4 numbers, the first quartile is 10 and the third quartile is 20. Find the difference = 10. Do the same for the rest of the plants and you will find the largest interquartile range.
May 17, 2013

Physics
From a height of 30.5 , a 1.45 bird dives (from rest) into a small fish tank containing 49.0 of water. What is the maximum rise in temperature of the water if the bird gives it all of its mechanical energy?
May 16, 2013

Philosophy
Anything is possible it must be possible that something is possible help you decide what is true help you know what to write about to correct wrong ideas ethos
May 15, 2013

math
how to describe a model that represents 3/3x4/4?
May 14, 2013

statistica
To find the range subtract the smallest value from the largest. 9.0 - 2.0
May 10, 2013

math
s = sundaes b = banana splits s = 4b shop sels 4 times as many sundaes as banana splits 3.60(s) +4.25(b) = 3730 replace s with 4b 3.60(4b) + 4.25(b) =3730 Solve for b and then find s from 4 times b.
May 3, 2013

chemistry
24 times 12.45 grams and then change your answer to kilograms by dividing by 1000
May 3, 2013

Statistic
at least 47
April 27, 2013

physic
3) A shell is fired from ground level with a muzzle speed of 350 ft / s and elevation and angle of 60 . Find (a) parametric equation for the shell’s trajectory (b) the maximum height reached by the shell (c) the horizontal distance traveled by the shell (d) the speed of ...
April 24, 2013

calculus
3) A shell is fired from ground level with a muzzle speed of 350 ft / s and elevation and angle of 60 . Find (a) parametric equation for the shell’s trajectory (b) the maximum height reached by the shell (c) the horizontal distance traveled by the shell (d) the speed of ...
April 24, 2013

6th grade Math
38kg 4g divide by 12
April 23, 2013

math
if it took jeff 14 minutes to drive 10 1/2 mile how long will it take him to travel 23 miles?
April 17, 2013

public speaking
Which of the following is NOT true about persuasive speaking compared to informative speaking?
April 17, 2013

statistics
LSAT test scores are normally distributed with a mean of 490 and a standard deviation of 110. Find the probability that a randomly chosen test-taker will score between 320 and 600. (Round your answer to four decimal places.)
April 16, 2013

Physics
A 50g tennis ball is thrown with a velocity of 12 m/s. It strikes a wall and rebounds with a velocity of 10 m/s. a) What is the ball's initial and final momentum? b) what is the impulse on the ball? c) Thje ball is in contact with the wall for .10 second. with what force ...
April 15, 2013

accounting
Hillsborough Co. has an available-for-sale investment in the bonds of Schuyler with a carrying (and fair) value of $90,220. Hillsborough determined that due to poor economic prospects for Schuyler, the bonds have decreased in value to $58,450. It is determined that this loss ...
April 14, 2013

Math ( Polynomial )
This time three questions - 1. If (x^2 - 1 ) is a factor of polynomial ax^4 + bx^3 + cx^2 + dx + e, show that a + c + e = b + d = 0. 2. Let R1 and R2 be the remainders when polynomials x^3 + 2x^2 - 5ax - 7 and x^ 3 + ax^2 - 12 x + 6 are divided by ( x + 1 ) and ( x - 2 ) ...
April 13, 2013

Math ( Polynomial )
This time three questions - 1. If (x^2 - 1 ) is a factor of polynomial ax^4 + bx^3 + cx^2 + dx + e, show that a + c + e = b + d = 0. 2. Let R1 and R2 be the remainders when polynomials x^3 + 2x^2 - 5ax - 7 and x^ 3 + ax^2 - 12 x + 6 are divided by ( x + 1 ) and ( x - 2 ) ...
April 13, 2013

Math ( Polynomial )
If the polynomial, x^4 - 6x^3 + 16x^2 - 25x + 10 is divided by another polynomial x^2 - 2x + k, the remainder comes out to be x + a, find k + a, please work the complete solution instead of giving simply an answer.
April 13, 2013

Physics :(( help please TT
Anonymous, you're wrong, check back next week for solution.
April 12, 2013

science
You are wrong hgj.
April 11, 2013

Math
An ordered triple of real numbers (a,b,c) is called friendly, if each number is equal to the product of the other 2. How many friendly triples are there? Details and assumptions The numbers need not be equal to each other. The numbers need not to be pairwise distinct (which ...
April 10, 2013

Math (Number Theory )
An ordered triple of real numbers (a,b,c) is called friendly, if each number is equal to the product of the other 2. How many friendly triples are there? Details and assumptions The numbers need not be equal to each other. The numbers need not to be pairwise distinct (which ...
April 10, 2013

applied calculus
3. a) Write out the limit definition for the derivative of y = xx. Attempt to solve it. b) Write out the limit definition for the derivative of the inverse trig function from question 2. Attempt to solve it. c) Discuss the value of implicit differentiation. (Use questions 1 ...
April 9, 2013

applied calculus
Let y=〖tan〗^(-1) x Rewrite it as an equation involving a trig function. Use implicit differentiation to determine an expression for y.
April 9, 2013

applied calculus
1. Consider the function y = xx (for x> 0). a) Why does the derivative rule for xn not apply? b) Why does the derivative rule for ax not apply? c) What are the four magic properties of logarithms? d) Take the ln of both sides. Use the properties of logarithms and implicit ...
April 9, 2013

Applied calculas
3. a) Write out the limit definition for the derivative of y = xx. Attempt to solve it. b) Write out the limit definition for the derivative of the inverse trig function from question 2. Attempt to solve it. c) Discuss the value of implicit differentiation. (Use questions 1 ...
April 8, 2013

Applied calculas
Let y=〖tan〗^(-1) x Rewrite it as an equation involving a trig function. Use implicit differentiation to determine an expression for y.
April 8, 2013

Applied calculas
1. Consider the function y = xx (for x > 0). a) Why does the derivative rule for xn not apply? b) Why does the derivative rule for ax not apply? c) What are the four magic properties of logarithms? d) Take the ln of both sides. Use the properties of logarithms and implicit ...
April 8, 2013

Statistics
Events and are mutually exclusive. Suppose event occurs with probability and event occurs with probability . Compute the probability that occurs or does not occur (or both). Compute the probability that either occurs without occurring or and both occur.
April 8, 2013

math
I think there's an easier way to do this, 7^6/7^7 would be equals to 7^-1. According to the Law of Exponents powers with a same base number in division is simply subtracted.
April 1, 2013

Spanish
I tried on 8 but i didn't get 9. I do not know how to do these, so please help. Thank You. 8. Which of these sentences is correct? Juego baloncesto. Juego a la baloncesto. *Juego al baloncesto. 9. Which of these sentences is correct? Juego al golf. Juego golf. Juego a la ...
March 28, 2013

spanish
Thank You. Will you please answer the last one I just posted?
March 28, 2013

spanish
15. If you do an activity every day, which expression would you use to express that? siempre *todos los días nunca muchas veces a veces 16. If you do an activity always, which expression would you use to express that? *siempre nunca todos los días muchas veces a ...
March 28, 2013

Spanish
Thank You. Will you pleasse answer the last one I posted?
March 28, 2013

Spanish
5. Fill in the blank with the correct form of the verb jugar. yo __________ My Answer: yo juego 6. Fill in the blank with the correct form of the verb jugar. nosotros __________ My Answer: nosotros jugamos 7. Fill in the blank with the correct form of the verb jugar. ellos ...
March 28, 2013

math
1340 UNFAVORABLE
March 28, 2013

Chemistry
#7 -D #8 -B...is that better?
March 28, 2013

Chemistry
you are right I think #3 is B...#4 is A and #5 is A...haven't done 7 and 8 yet...how am I doing?
March 28, 2013

Chemistry
1. Which of the following metals is oxidized by calcium ions? *potassium zinc iron lead 2. The first electrochemical cell was invented by ____. Michael Faraday *Alessandro Volta James Maxwell Benjamin Franklin 3. Why can't a lead storage battery be recharged indefinitely...
March 28, 2013

Chemistry
1. Which metal is the most easily oxidized? A.) highly active metal *B.) moderately active metal C.) slightly active metal D.) an inactive metal 2. What happens in a voltaic cell? *A.) Chemical energy is changed to a electrical energy. B.) Electrical energy is changed to ...
March 27, 2013

Englisj
ok. Thank you.
March 27, 2013

Englisj
1. Which of the following is NOT an example of persuasive writing? a position paper from an elected official a college admissions essay a movie review *a summary of a textbook reading assessment 2. Identify the following as a fact or an opinion: “Video games are too ...
March 27, 2013

Chemistry
did you see that jose?
March 27, 2013

Chemistry
I think I found out that it is A.
March 27, 2013

Algebra
What is the sum of all integer values of n satisfying 1 \leq n \leq 100, such that n^2 - 1 is a product of exactly two distinct prime numbers?
March 26, 2013

Physics/math
Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of the other ...
March 25, 2013

Physics/math
Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of the other ...
March 25, 2013

Chemistry: check answers
I'm really trying to figure this out. Is it D for number 2 and B for number 3? I know you already explained it once and if i'm wrong, any additional help would be greatly appreciated.
March 22, 2013

Chemistry: check answers
2. B 3. C
March 22, 2013

Chemistry: check answers
Please check. Thank you. 2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH4+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O72– B.) Cr2O72– -> Cr2O3 C.) NH4+ -> N2 D.) N2 -> NH4+ 3. Which oxidation-reduction reactions are ...
March 22, 2013

Chemistry
2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH4+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O7^2– *B.) Cr2O72– -> Cr2O3 C.) NH4+ -> N2 D.) N2 -> NH4+ 3. Which oxidation-reduction reactions are best balanced by the ...
March 22, 2013

chemistry
2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH4+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O7^2– *B.) Cr2O72– -> Cr2O3 C.) NH4+ -> N2 D.) N2 -> NH4+ 3. Which oxidation-reduction reactions are best balanced by the ...
March 22, 2013

Physics
A rectangular conducting homogeneous (which means the material is the same throughout) block has dimensions 1cm×2cm×3cm . A voltage V is applied between all opposite faces of the block and the corresponding currents were recorded. What is the maximum ...
March 22, 2013

Physics
The sun goes around the center of our galaxy once every 250 million years. The sun is also 2.55×10^20 m from the center of our galaxy. What is the acceleration of our sun towards the center of the galaxy in m/s^2? Details and assumptions You may assume the...
March 22, 2013

Spanish
10. Fill in the blank with the correct form of the verb: ellos/salir. Ellos ______ Is it: Ellos salen or Is it: Ellos salieron Thank You.
March 21, 2013

Spanish: Check my answer
10. Fill in the blank with the correct form of the verb: ellos/salir. Ellos ______ Is it: Ellos salen or Is it: Ellos salieron Thank You.
March 21, 2013

Spanish: Translate please
Translate these please: una zanahoria una manzana una uva una fresa una zanahoria una manzana unas uvas una fresa una manzana la lechuga una papa una cebolla el refresco el jugo la leche el té Thank You.
March 21, 2013

Algebra-Knights
I went to the website....maybe I am doing something wrong but it won't bring up the graph - I put in the equation on y1
March 21, 2013

Algebra
Thanks
March 21, 2013

Algebra
it shows y= and then the square root goes over all of 2x+6
March 21, 2013

Algebra
Which graph matches the function: y= square root 2x + 6 How would this look on a graph? Thank You.
March 21, 2013

Algebra: Please help
Thank you for all your help...I appreciate it.
March 21, 2013

Algebra: Please help
So which is it?
March 21, 2013

Algebra: Please help
Solve for B: square root b^4/25 = 4. A.) 2 B.) +/- 5 square root 2 C.) 3 D.) +/- 2 square root 5 I don't know how to do these so please show your work. Thank you.
March 21, 2013

Algebra: check my answer
A right triangle’s legs are 3 and 4 meters long. What is the measure of the angle adjacent to the 4-meter leg to the nearest tenth of a degree? A.) 35.9° B.) 36° *C.) 36.9° d.) 37.5° Thank You.
March 21, 2013

Algebra
solve for x: square root 2x+3 = square root 6x - 1. A.) 1 B.) 2 C.) 3 D.) square root 6 I don't know how to do these so will you please show your work. Thsnk You.
March 21, 2013

chem
pls help
March 20, 2013

chem
For the indicated atom in each of the following molecules or ions, give the number and arrangement of the electron pairs around that atom. (a) As in AsO43- number: arrangement: linear bent trigonal planar square planar tetrahedral (b) Se in SeO42- number: arrangement: linear ...
March 20, 2013

English
Thnak you.
March 20, 2013

English
choose from For example or therefore 1. Most listeners don't simply absord your message of thier own called feedback._______, when you phone a friend to say you'll be late, you may hear,"Hey, you really need to get here on time!" That is feedback. I am a bit ...
March 20, 2013

chem
could u check if im right: a. As in AsO43- for number its 3 arrangement is tetrahedral b. Se in SeO42- # is 2 arrangement is tetrahedral c. S in H2S # is 1 arrangement is linear
March 19, 2013

chem
For the indicated atom in each of the following molecules or ions, give the number and arrangement of the electron pairs around that atom. (a) As in AsO43- number: arrangement: linear bent trigonal planar square planar tetrahedral (b) Se in SeO42- number: arrangement: linear ...
March 19, 2013

Algebra
Please help me. Please show work. What are the domain and range of the function y=2 square root 3x + 4-5? *A.) X >/= -4/3; Y >/=-5 B.) X >/= 4/3; Y >/= 5 C.) X </= -4/3; Y </= -5 D.) X </= 4/3; Y </= 5 Thank You so much.
March 19, 2013

english
Thank You.
March 19, 2013

english
1. Which of the style guides is most focused on professionals who are writing articles for publication? A.) MLA B.) APA *C.)Chicago Thanks.
March 19, 2013

chemistry
Calculate the concentrations of all species in a 0.690 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10–2 and Ka2 = 6.3× 10–8.
March 15, 2013

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