# Questions Asked onMarch 15, 2009

1. ## maths

there are 24 hours in a day and scientists tell us that we should sleep for 3/8 of the day.how much time should we spend sleeping?

2. ## physics

two point charges are 10.0 cm apart and have chargeso of 2.0 uC (micro)and -2 uC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? i think i know how to do it: both E1 and E2 go in the same direction

9. ## math

a bin contains seven red chips, nine green chips, three yellow chips, and six blue chips. Whats the probability od drawing a red chip, replacing it, then drawing a blue chip

10. ## Calc

A particle is moving along the curve y= 3 \sqrt{3 x + 4}. As the particle passes through the point (4, 12), its x-coordinate increases at a rate of 4 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

18. ## physics

Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 1.5e6 m/s. What is the distance of closest approach? PLEASE HELP! im very confused.

19. ## Physics

idential point charges of 1.7e-6 C are fixed diagonally on opposite corners of a square. A third charge is then fixed at the center of the square, such that it causes the potentials at the empty corners to change signs without changing their magnitudes.

22. ## English

The Great Gatsby-Why doesn't Daisy stop the car for Myrtle? I don't know why she didn't stop. Thanks

28. ## education

Steps required for a multicultural education to be effective. According to J.A.Banks the steps required for a multicultural classroom to be effective is you must have multicultural education policy statement and supports diversity, the staff should have

29. ## physical science

an adult and a s,all child get on a seesaw that has a movable fulcrum. when the fulcrum is in the middle, the child can't tift the adult. How should the fulcrum be moved so the two can seewaw

30. ## physics

Proponents of astrology claim that the positions of the planets at the time of a baby's birth will affect the life of that person in important ways. Some assert that this effect is due to gravity. Examine this claim with Newton's law of gravity. Calculate

At noon, ship A is 40 nautical miles due west of ship B. Ship A is sailing west at 24 knots and ship B is sailing north at 22 knots. How fast (in knots) is the distance between the ships changing at 6 PM? (Note: 1 knot is a speed of 1 nautical mile per

32. ## Algerbra

I need help solving the b portion of the equation. 15. Assume that a surveyor stands at the top of a mountain that is “h” feet tall. If the distance (in feet) that he can see is defined by d = 3200.2 SQRT(h), then answer the following. (a) How far can

33. ## Math

Here's a couple examples from my homework. If someone could help me solve this by showing me step by step what to do, it would be so great. Also, any websites that would show me the steps too. Thanks so much. I have to get all my work done by tomorrow and

34. ## math

a bin contains seven red chips, nine green chips, three yellow chips, and six blue chips. Whats the probability od drawing a red chip, replacing it, then drawing a blue chip

35. ## Algebra

Two angles are complementary. The sum of the measure of the first angle and one-fourth of the second angle is 69 degrees. Find the measures of the angles. What is the measure of the smaller angle? What is the measure of the other angle? Can somebody help

When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV^{1.4}=C where C is a constant. Suppose that at a certain instant the volume is 520 cubic centimeters and the pressure is 75 kPa and

37. ## chemistry- lab

i need help locating a lab for regents chemistry. i have the data sheet but misplaced the rest of the lab. i know it's online somewhere, but i'm not sure which lab it is.. (what it is called). The data sheet has 3 charts on it, 1 titled 'solubility'. it

44. ## jumble newspapet puzzle

the couple saved for a rainy day by avoiding this the scrambles letters 2 words snatoeiedkggt first word 7 letters second word in quotes 6 letters

45. ## Pre Calc

Find the geometric sequence with t(5)= -2 and t(7)= -8 find a How do I do this?

46. ## Biology

Produce a nucleotide sequence with a single base-pair substitution mutation that still produces the same amino acid sequence. Indicate the site of the mutation and explain why the amino acid sequence is not affected.

47. ## algebra 1

Suppose y varies directly as x and that y = 21 when x = 3. Find the value of y when x = 5. Would I be wrong if I said y = 35? In using y = kx with the 21 and the 3 k = 7. So if y = 35 and x = 5 then k = 7. Am I correct or am I way off course?

A chi-square test for independence with 8 degrees of freedom results in a test statistic of 18.21. Using the chi-square table, the most accurate statement that can be made about the p-value for this test is that: A) p-value < 0.01 B) 0.025 > p-value > 0.01

49. ## AE

steps required for a multicultural education to be effective. would that be treating each student eaqually and fairly?

50. ## not sure

what would a good example of white american snack?

51. ## CRT

determine which arguments are valid 2. The Lakers almost didn’t beat the Kings. They’ll never get past Dallas. 3. If the butler had done it, he could not have locked the screen door. Therefore, since the door was locked, we know that the butler is in

52. ## Bible study

Hi, im doing a bible study and it tells mr to unscramble some names. Here are the questions... Towhat for men was Jesus taken to after he was arrested? It was _ _ _ _ _ (NNASA), the father in law of the second man. The second man is _ _ _ _ _ _ _ _

53. ## Science

What's the longitude and latitufe for mid-indian ridge? and is the southwest indian ridge and southeast indian ridge one big ridge, or two different ocean ridges?

teouatdlusbb

55. ## School-Age Children

You're trying to plan an activity for your third graders, who will be arriving around 2:30 in the afternoon. Today you want to do something associated with mathematics. Which one of the following activities would be appropriate? A. Keeping track of the

56. ## AE,, this right?>(revised)

Steps required for a multicultural education to be effective. According to J.A.Banks the steps required for a multicultural classroom to be effective is you must have multicultural education policy statement and supports diversity, the staff should have

57. ## Math

Limit as x approaches infinity of (2^n + 3^n)^(1/n)

58. ## english

need help with writing an expossitory essay on healthy eating

59. ## physics

i keep trying to put this in my calculator but i keep getting the wrong answer...can someone please try it on their calculator and help me? thnks (a) Find the distance r to geosynchronous orbit. Apply Kepler's third law. T^2=((4pi^2)/(GM_E))r^3 Substitute

60. ## CHEMISTRY

Calculate the volume of 0.6M HNO3 necessary to neutralize 28.55 cm3 of 0.45M KOH. PLEASE SHOW ME STEPS SO THAT I CAN UNDERSTAND HOW TO SOLVE THIS PROBLEM. THANK YOU.

145. ## English

Can harrowed mean worried? In the dictionary, I'm only finding that it has to do with farming, but in the context I see it in, it looks like it'd mean worried.