JL

Most popular questions and responses by JL
  1. Chemistry

    Hi! So, I thought I was very comfortable with distinguishing among Arrhenius, Bronsted-Lowry, and Lewis acids and bases. But then, I answered this question wrong and am looking for help because I'm not sure if my "second choice" answer is correct. The

    asked on April 24, 2010
  2. general chemistry II

    Phosphoric Acid is usually obtained at an 85% phosphoric acid solution, by mass. If this solution is 15 M, what is the density of the solution? What is its MOLALITY?

    asked on January 29, 2014
  3. Physics

    In a ballistic pendulum experiment, a small marble is fired into a cup attached to the end of a pendulum. If the mass of the marble is 0.0255 kg and the mass of the pendulum is 0.250 kg, how high will the pendulum swing if the marble has an initial speed

    asked on October 26, 2015
  4. AP Physics

    A Physics book has a height of 26 cm, a width of 22 cm, and a thickness of 4 cm. Find the pressure that the Physics book exerts on a desktop when the book lies face up and when the book is balanced on its spine. I know that P=F/A, I am just not sure which

    asked on November 15, 2009
  5. math

    Im stuck on this question. Could someone answer it. Id appreciate it. The projected rate of increase in enrollment at a new college is estimated by: dE/dt = 9000(t + 1)^-3/2 where E(t) is the projected enrollment in t years. If the enrollment is 5000 now

    asked on April 24, 2011
  6. Drama

    Which of the following could be used as a prop

    asked on March 27, 2018
  7. Maths

    Martha invested $50,000 in a boutique 4 yr ago. Her investment is worth $100,000 today. What is the effective rate (annual effective yield) of her investment? Please round your answer to two decimal places.

    asked on December 18, 2015
  8. physics

    Three capacitors with C1=C2=C3= 10.00 uF are connected to battery with voltage V= 194 V. What is the voltage across capacitor C1

    asked on November 23, 2011
  9. math

    Could someone answer this question. im stuck on it. Id appreciate it. Use substitution to find the indefinite integral. çp(p+3)^5 dp Use C as the arbitrary constant.

    asked on April 23, 2011
  10. Assignment Help

    There are 1000 students in the University of A. A sample of 10 observations was obtained regarding the rating of the service quality of dining hall. Here is the sample: Observation Rating 1 5 2 6 3 7 4 3 5 8 6 5 7 6 8 3 9 4 10 7 calculate the confidence

    asked on March 28, 2010
  11. Math

    Could someone answer this question so I understand it. Thanks. Find the antiderivitive of the following derivitive that satisfies the given condition. dy/dx = 4x+4/3rd root of x y(1)=0 y(x)=

    asked on April 25, 2011
  12. AP Physics

    In a period of 2s, 4.8E23 nitrogen molecules strike a wall area of 8.6 cm^2. If the molecules move at 308 m/s and strike the wall head-on in a perfectly elastic collision, find the pressure exerted on the wall. The mass of one N2 molecule is 4.68E-26kg.

    asked on November 15, 2009
  13. Math

    I am stuck on this question. Could someone work it out. Id appreciate it. Find the amount of A in an account after t years given the following conditions. dA/dt = 0.04A A(0) = 7000 A(t) =

    asked on April 25, 2011
  14. Marketing

    There are 1000 students in the University of A. A sample of 10 observations was obtained regarding the rating of the service quality of dining hall. Here is the sample: Observation Rating 1 5 2 6 3 7 4 3 5 8 6 5 7 6 8 3 9 4 10 7 calculate the confidence

    asked on March 27, 2010
  15. science

    what is the solution of this answer: t1=883.33N t2=1533.3N

    asked on August 27, 2018
  16. Math

    How many significant numbers are there in 2000? in 0.00150? p.s. I already studied it twice and i couldn't understand it. thanks!

    asked on October 31, 2016
  17. MATH

    If 1 CM = 48 INCHES, how many CM (or MM) would 80 INCHES be?

    asked on August 31, 2016
  18. Applied Ethics

    How do I hypothesize Contracturalism for a vet who needs to get a certain breed of dog for his daughter with allergies, but would prefer to adopt rather than purchase one from a puppy mill?

    asked on April 2, 2012
  19. Math

    Could someone answer this question so I understand it. Thanks Find the indefinite integral: çx/ã3x^2+4 dx Use C as the arbitrary constant.

    asked on April 24, 2011
  20. physics

    what happens to the speed of an airplane with a 25 km/h tailwind pushing ahead from tail to front?

    asked on October 3, 2010
  21. English

    Okay my English teacher set up this assignment to relate a person (needs to be alive) to a character in the a man for all seasons by Bolt. I chose Richard rich, but I am failing to find someone.. any idea of who I can relate Richard rich to?

    asked on July 14, 2009
  1. English

    What drawback does the drum have?

    posted on June 18, 2019
  2. statistics

    lh;jh

    posted on January 30, 2017
  3. math

    is it really "1/6 of the red"?

    posted on November 6, 2016
  4. PLZ CHECK ANSWERS

    a and b

    posted on November 6, 2016
  5. math

    8x11???

    posted on November 6, 2016
  6. Tricky Math Question

    thanks for your answers... I can now explain the different answers to my professor..

    posted on November 6, 2016
  7. math

    4.8 m.

    posted on November 4, 2016
  8. Math

    3/8=0.375 and 9/16=0.5625 so...

    posted on November 4, 2016
  9. chemistry

    #57 (La)Lanthanum=[Xe] 5d1 6s2 #58 (Ce)Cerium=[Xe] 4f1 5d1 6s2 based on what I've read, La is the answer,but for some reason-5d1 is used instead of 4f1.

    posted on November 4, 2016
  10. math

    SA=πrs+πr^2 417π=π3S+π3^2 417π= π(3S+9 (417π)/π = [π(3s+9)]/π 417= 3s+9 417-9= 3s+9-9 408=3s 408/3=3s/3 136=S

    posted on November 4, 2016
  11. brain drain

    is this a riddle????

    posted on November 4, 2016
  12. math

    exactly :)

    posted on November 4, 2016
  13. show low high school

    25-3=22 22/2=11 1st number: 11+3=14 2nd number: 11 checking: 1.the first number which is 14,is 3 more than the second number,11 (CORRECT) 2. the sum of 14 and 11 is 25 (CORRECT)

    posted on November 4, 2016
  14. math

    is it 16^2=x??? if it is, neither 4 nor -4 is the answer..

    posted on November 4, 2016
  15. Geometry

    C =2(pi)r r= C/(2*pi) substitute your given to the derive formula...(as far as I know, Pi as no unit of measurement :D)

    posted on November 4, 2016
  16. Math

    do you mean 800 times 11.5%? if this so, 800 times 0.115=?

    posted on November 4, 2016
  17. Math

    n+10=-10 n=-10-10 n=(-10)+(-10) n=?

    posted on November 4, 2016
  18. Math

    1 1/4 = 1.25 3-1.25=1.75 1.75-1.25=0.25 you can only cut two 1 1/4 yards from a 3 yards string.

    posted on November 3, 2016
  19. PLZ HELP HELP HELP

    your correct answers were nos. 10,14,18,and 19

    posted on November 2, 2016
  20. math

    1in.:10miles = 5in.:____miles

    posted on November 2, 2016
  21. physics

    Is it 1 revolution = 12 hours?

    posted on November 2, 2016
  22. math

    J= x; E= 2x;B=x+6 x+2x+x+6=50 4x+6=50 4x=50-6 4x=44 4x/4=44/4 x=11 J=11;E=2(11)=22;B=11+6=17

    posted on November 2, 2016
  23. Math

    Unfortunately, I don't know any tricks,techniques or method that can be use in that problem.

    posted on November 1, 2016
  24. math

    Defect. time/No. of Hours/Orig.time 12pm-1pm / 4hrs / 12pm-4pm 1pm-2pm / +4hrs / 4pm-8pm 2pm-3pm / +4hrs / 8pm-12am 3pm-4pm / +4hrs / 12am-4am 4pm-5pm / +4hrs / 4am-8am 5pm-6pm / +4hrs / 8am-12pm 6pm-7pm / +4hrs / 12pm-4pm 7pm-8pm / +4hrs / 4pm-8pm TOTAL

    posted on November 1, 2016
  25. Maths (done question a but cant do b)

    try to use distance formula, then compare their distance

    posted on November 1, 2016
  26. math

    If the time in the defective clock says 12:15 p.m., then,it means 1:00 p.m. in the normal clock. So, an hour in the def.clock is equal to 4 hours in norm.clock. I list the time in the defective clock and the original time.

    posted on November 1, 2016
  27. Algebra

    function! no similar domain(x),or it shows one-to-one relation.

    posted on November 1, 2016
  28. Algebra

    oh sorry...hypothesis rather,,,an educated guess...:D

    posted on November 1, 2016
  29. mathematics

    P700.75

    posted on November 1, 2016
  30. Math

    1,995,000???

    posted on November 1, 2016
  31. Algebra

    i guess the answers are: marimar: 10 sergio: 18

    posted on November 1, 2016
  32. geometry

    Use the Distance Formula. then divide the answer by 2 to get the radius.

    posted on November 1, 2016
  33. Math

    what??? 2/27??? 1/9 + 1/18 = 3/18 or 1/6 (lowest term) Change them into similar fractions having the Least Common Denominator (LCD) of 18; =[1(2)/9(2)] + 1/18 =2/18 + 1/18 =3/18 or 1/6 same procedure with 1/10 + 1/15

    posted on October 29, 2016
  34. Math

    Formula: π*r^2 or π[(d/2)^2] {π*[(25/2)^2]}/6≈81.77 sq.cm.

    posted on October 29, 2016
  35. math

    32 hours (8:00 p.m.of the next day)

    posted on October 29, 2016
  36. electricity and magnetism

    F≈0.97N

    posted on October 29, 2016
  37. Intermediate Algebra

    We are to multiply & simplify. My teacher foiled it but I think she made a mistake because the answer she gave was 1+4ã5 & someone else said the answer should be 3ã5+1. I'm confused on the foiling. She foiled it this way: ã5*ã5 -ã5 + 5*ã5

    posted on April 2, 2012
  38. math

    Just add 37+2=39 and then subtract 39 from 59. =10

    posted on February 1, 2012
  39. english

    No, first If needs to be capital. Everytime you write I it needs to be capital. Second, add if between wondering and I. Im in 5th grade and I know this.

    posted on June 3, 2010
  40. Chemistry

    Thanks, Dr. Bob! It seems my initial thinking was correct. Perhaps the question was marked wrong by mistake!

    posted on April 24, 2010
  41. Assignment Help

    For some reason the numbers are together example 1=5 not 15

    posted on March 28, 2010