# Nelson

Popular questions and responses by Nelson
1. ## physics

the magnitude of vector A is 35 units and points in the direction 325 degrees counterclockwise from the positive X-axis. calculate the X and y components of the vector

2. ## vhem

What is the pH of a 0.570 M solution of aniline? Kb = 7.4 × 10-10

3. ## Physics

A boy standing in a ditch throws a baseball upward toward his father. The ball leaves his hand at ground level, with an initial speed of 16.0 m/s,at an angle of θ = 51°, from the horizontal. The boy's father reaches up and catches the ball over his head,

4. ## math

a couple goes out to dinner,wchich costs \$45.to the nearest dollar,what should they pay in total,if they tip 15% on the bill? 1] \$45 2] \$50 3] \$51 4] \$52 5] \$53

5. ## Calculus

Function f(x) is positive, increasing and concave up on the closed interval [a, b]. The interval [a, b] is partitioned into 4 equal intervals and these are used to compute the upper sum, lower sum, and trapezoidal rule approximations for the value of

6. ## chem

1. What is the [K+] of a solution prepared by dissolving 0.140 g of potassium hydroxide in sufficient pure water to prepare 250.0 ml of solution? 2. What is the pH of a 0.570 M solution of aniline? Kb = 7.4 × 10-10

7. ## Chemistry

(1)Make 500 ML of 4N H3PO4. How many grams will be needed? (2) In a titration procedure, 20mL of 2N solution were required to titrate 5mL of an unknown solution. What is the normality of the solution? (3) How much of a 0.01M can be made from 20mL of 6M

8. ## math

The width of a rectangle is 8 less than twice its length. If the area of the rectangle is 172 cm^2, what is the length of the diagonal?

9. ## algebra

A cash register contains only five dollar and fifty dollar bills. It contains four times as many five dollar bills as fifty dollar bills and the total amount of money in the cash register is \$2,870. How many fifty dollar bills are in the cash register?

10. ## math

there are twice as many woman as men in the union at global products altogether 84 workers at the plant are union members.how many of them are woman? 1]28 2]32 3]47 4]56 5]61

11. ## Physics

A particle moves along a circular path over a horizontal xy coordinate system, at constant speed. At time t1 = 4.80 s, it is at point (4.40 m, 6.20 m) with velocity (3.70 m/s) and acceleration in the positive x direction. At time t2 = 11.0 s, it has

12. ## Biology- Amylase

Hello, In our class, we are doing a hypothetical digestion of starch by amylase lab. I do not know where to begin with this following information. If I add Benedict's solution (which I know will change color when the presence of sugar is noted). After all

13. ## college

Maggie has 3/4 apple .She eats 1/2 of it.What fraction of the apple does eat

14. ## Math

Why is it important to line up the fraction strips on the left?

15. ## physics

A stone is tied to a string (length = 1.05 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next, the circle is vertical. In the vertical case the

16. ## Math

If two of the line segments of a polygon are parallel, what is the least number of sides it could have?

17. ## Math

Show how the Commulatice Property of Addition works using the number 2, 3, and 5.

18. ## spanish

How do I say "sue me" in spanish?

19. ## geometry

Rectangle ABCD has diagonals AC and BD. If the diagonal lengths are AC = 36 cm and BD = (3x + 3) cm, find the value of x

20. ## Algebra

Need a formula; the product of two consecutive integers is 41 more than their sum. Find the integers.

21. ## principles of microeconomics

show how a total product curve for an input can be derived from an isoquant map.

22. ## Setswana

Botshelo jwa maloba bo gaisa jwa segompieno

23. ## algebra

one half of a number decrease by 16

24. ## Math

There are 16 plants in Allison's garden.Of these, 2/8 are tomato plants. How many tomato plants are in Allison 's garden?

25. ## math

A 200g alloy is made of copper and zinc. the number of copper atoms is 3 times that of zinc, a)calculate the number of copper and zinc atoms. b)calculate the weight of copper and zinc in the alloy. so for a) can i assume that the mol ratio is cu:zn = 3:1?

26. ## Chemisty

How many grams of HNO3 will be contained in 300 mL of a 5 N solution?

27. ## Physics

Draw a block and tackle system of pulleys with a velocity ratio of 5.A block and tackle with a velocity ratio of 5 is used to raise a mass of 25kg through a vertical distanceof 40cm at a steady rate. If the efforts is equal to 60N, determine a)d distance

28. ## calculus

Integral High value= 4 lower value=0 f(x)dx f(x) = 2, x < 2 x, x ≥ 2 It's asking me to use geometric formulas to solve this without a shape given. What am I supposed to do?

29. ## Calculus

Find the Riemann sum for f(x) = sin x over the interval [0, 2π], where x0 = 0, x1 = π/4, x2 = π/3, x3 = π, and x4 = 2π, and where c1 = π/6, c2 = π/3, c3 = 2π/3, and c4 = 3π/2.

30. ## ECONOMICS

A REPORT ON WHY THE GOVERNMENT OWNS AND CONTROLS ONLY 30% OF THE RESOURCES IN MIXED ECONOMIC SYSTEM

31. ## math

in class 2/3 of the learners do school sports.Of the learners who do sport ,3/5 play soccer.what fraction of the class plays soccer

32. ## math

in a grade 12 ,3/4 of these class girls and 1/3 og these girls play netball. what fraction of the class plays netball

33. ## maths

in your class 5/6 of the learners are good with mathematics.Of these 3/4 enjoy geometry.What fraction of the class enjoy geometry

34. ## Precalculus

The width of a rectangle is 8 less than twice its length. If the area of the rectangle is 172 cm^2, what is the length of the diagonal?

35. ## Chemistry

Hello, please I need help with this excersice of chemical equilibrum. I really don't get what "1:6" means and how can I use that proportion". The excercise says: "0,014" moles of HCl are dissolved in water in a proportion of 1:6 (1 mole of HCl per 6 moles

36. ## Physics

Calculate the formula for coefficient of kinetic friction in an inclined plane with a pulley and two masses coonected by a rope. You can only use the weight of the two masses, the height where the second object is and the distance that the first object

37. ## US History

In what ways would a person's race affect his or her perspective on the war? What role did the media play in the development of popular thinking related to the war?

38. ## physical science

If the mans weight is 490N on earth,calculate his weight on the moon that has the gravitational force 1/2 of the gravitational force of the aerth

39. ## ap chemistry

glycerin C3H8O is a nonvolatile liquid. what is the vapor pressure of a solution made by adding 164 g of glycerin to 338 mL of H2O at 39.8C. The vapor pressure of pure water at 39.8C is 54.74 torr and its density is 0.992 g/cm3 P solution= X solvent p

40. ## world history

Industrial revolution

41. ## Algebra

I need help with this problem, and I think it's a perfect square trinomial problem. X^2+22+121-y^2 I know 11 is the square of 121.

42. ## L.O

PROVID RECOMMENDATIONS FOR HIV?AIDS

43. ## Math -3

How do I write a mixed number fractions greater than 1. 6/5 13/5 9/5 17/5 How do I solve it?

44. ## Math

Rachel gave 1/4 of a pie to each of 5 friends. How many pies did she give to her friends in all? Write the mixed number. Ms. Fuller has 2 2/6 pies left over from her party. Write the number of pies left over as a fraction greater than 1. How do I arrive at

45. ## number sense

I am greater than 4 tens and less than 5 tens. I have 9 Inés. What nombre I am?

46. ## math

what is the least amount they could spend to purchase the plants they have chosen? 1]\$62.00 2]\$53.00 3]\$50.00 4]\$36.00 5]\$28.00

47. ## math

jim and alice moore decided to plant a garden with 3 hosta plants,6 lavender plants,60 tulips,and a dogwood.the cost of the plants is as follows. hosta: \$3.00 each or 3 for \$8.00 lavender:\$ 1 00 each or 3 for \$2.00 tulips:10 for \$4.00 dogwood:\$14.00 each

48. ## physics

A circus a dog is traned to run a stranght path of length 50m/s in the direction AB as shown in the accompanying diagram.the dog starting from rest can attain a maxium speed of 5m/s in 10sec when released from any point along the path AB .the after it

49. ## chemistry

Find the molar heat of vaporization for a substance, if 3.28mol of the substance absorbs 24.8 kJ of energy when it changes from a liquid to a gas. Answer in units of kJ/mol

50. ## Math

How can you use a multiplication fact to find a division fact?

51. ## Total Quality Management

Find the standard deviation of 32,15,54,18,and 46

52. ## university

A surfer is catching a wave. Suppose she starts at the top of a wave with a speed of 1.37 m/s and moves down the wave until her speed increases to 9.90 m/s. The drop in her vertical height is 2.64 m. If her mass is 63.3 kg, how much work is done by the

53. ## Math

How many vertices, edges, and faces does pyramid have?

54. ## Math

Why is estimating before you subtract a good idea?

55. ## math

Find the sum using mental math 24 + 71 =

56. ## math

A number rounded to the nearest thousand is 6,000. It has a 5 in the thousands place. Name the digits that could be in the hundreds place.

57. ## Math

Sun-Yi estimated 270 + 146 and got 300. Is her estimate reasonable? Explain.

58. ## Math

Miguel has 325 baseball cards and 272 football cards. He said that he has 597 cards in all. Is his answer reasonable? Explain using estimation.

59. ## Math

Natalie has 138 DVDs and 419 CDs. If you were to estimate the sum of the DVDs and CDs, what sentence could you write? Then find your estimated sum.

60. ## Math

Write each missing number 3 + = 5+3

61. ## math

Jill knows her average score on five tests is 88. She can find all but one test. She has tests with scores of 96,83,100, and 79. What is the missing test?

62. ## math

If an object is reflected twice over parallel lines, and corresponding points of the original and final translation image are 30 centimeters apart, how far apart are the parallel lines?

63. ## English

Invent something that would make doing homework easier. Explain it 5+ sentences. Copy into paragraph format.

64. ## algebra

6m^2 + 12m + 5=0 solve for m

65. ## algebra

2x + 4 / 10x2 +24x + 8 simplify

66. ## algebra

simplify 2x + 4 / 10x^2 + 24x + 8

67. ## English- textual history

What does it mean to research a textual history of a work? i.e. Hamlet's textual history

68. ## science

what is the density of a material that has a mass of 54.457g and a volume of 13.5cm

69. ## Sequences...again

Sequence T1 is obtained by adding the corresponding terms of S(sub) and S(sub2). so that T(sub1) = {2.6, 3.39, 4.297, 5.3561, . . .}. We shall write T(sub1) = S(sub1) + S(sub2) to convey the addition of S(sub1) and S(sub2) in this way. Is T(sub1) an

70. ## Sequences

A = {a1, a1 + d1, a1 + 2d1, …}, B = {a2, a2 + d2, a2 +2d2, …}. Investigate whether A + B and A x B are arithmetic or geometric sequences. If an arithmetic sequence is identified, state its common difference. If a geometric sequence is identified, state

71. ## homeland security

2-3pgs You just received intelligence that and international terrorist group has selected a major target in a major U.S. city. The terrorist are known for their hatred of capitalism and Western culture, and their intent is to wage a voilent canpaign

72. ## Review of Logs

I can't seem to get the answer to this; the answer key says log(base 8)6 Write as a single logarithm log(base 8)42log(base 8)3 - log(base 8) 6 I'm hoping the key is wrong :) Thank you for your help!

73. ## Law inforcement operations & Report writing

Choose 1 area within the criminal justice system, such as law enforcement, corrections, or the courts. Identify and describe specifics issues raised in dealin with mentally ill individuals by the professionals in that aspect of the criminal justice system.

74. ## introduction to us constitution

The 4th and 6th amendments. Why are they necessary to the criminal justice system? Identify two areas or situations in the modern world that could be benefit from a clarification or modification of these rights. Once identified can you please describe the

75. ## science

i know the steps but i still cant seem to write skeleton equations and balance them. can you help

76. ## BIO?

how would increase in adrenaline change blood glucose levels? Look under Actions in the body at: http://en.wikipedia.org/wiki/Epinephrine

77. ## Biology

I was wondering if you could double check my work thanks! Kidneys play a major homeostatic role in regulating body fluids. Which would not be a reasonable inference? A.

1. ## mathematics

a wooden stool in the form of a frustrum a cone with a slant edge 40cm top diameter 30cm and bottom diameter 50cm calculate perpendicular height of stool

posted on May 23, 2020
2. ## maths

Not able to finish

posted on October 6, 2019
3. ## basic electroincs

when getting the period, why did you multiple by 2?

posted on November 25, 2018
4. ## Social Studies

BECE

posted on November 7, 2018
5. ## mathematics

solve the questions for me

posted on November 7, 2018
6. ## BIO chemistry

46

posted on June 4, 2018
7. ## History

NO ITS NOT B ITS A

posted on January 11, 2018
8. ## math

i dont know

posted on August 15, 2017
9. ## CAT, mathematics literacy , business studies ,hist

which career should i follow

posted on January 27, 2017
10. ## History

nojoda chica

posted on November 29, 2016
11. ## Chemistry

Hello, thanks to answer my question. .. I was thinking about the answer because it give me a negative pH ... Is that posible? And Does the initial moles of HCl the problem (0,014) interact in something?

posted on August 27, 2016
12. ## geometry

What is the answer to this example:The area of circle PQR with centre O is 72cmsquare.what is the area of sector POQ if POQ=40degree?(WAEC) question

posted on May 15, 2016
13. ## math

The area of a circle PQR with centre O is 72cmsquare.What is the area of sector PQR,if angle PQR=40degree

posted on May 15, 2016
14. ## Medical physics

A silver cube (density of silver is 10 g/cm3) with side length of 3 cm weighs more than an aluminium cube (density of aluminium is 2.96 g/cm3) with side length of 4 cm.The cubes are each suspended by a string and allowed to be completely immersed in two

posted on May 3, 2016
15. ## US History

Spanish-American War. Sorry

posted on February 2, 2016
16. ## Chemistry

.12

posted on October 5, 2015
17. ## trig

60/theta

posted on September 16, 2014
18. ## math

the answer was 3 that's correct thanks

posted on November 21, 2012
19. ## math

posted on November 21, 2012
20. ## math

THANKS

posted on November 15, 2012
21. ## math

i got it the answer 3 \$ 50 thanks

posted on November 15, 2012
22. ## math

for car is spend \$138 for food \$302 for miscellaneous it spend \$ 460 for housing \$498 for utility \$90 for tax \$362. question 1] was 4  5  9  5  50

posted on November 15, 2012