# Questions Asked onJune 4, 2016

1. ## mathematics

Cand D are two observation posts on the same horizontal ground at the foot A of a vertical tower AB.the tower is 18m due north of D and 24m east of C.the angle of elevation of B from D is 35¡ã.calculate to three s.f the height AB,distance CD,angle of

2. ## PHYSICS

Explain the statement the capacitance of a capacitor is 5microfarads

3. ## chemistry

aluminum sulfide reacts with water to form aluminum hydroxide and hydrogen sulfide a. balance the chem eqn for this rxn Al2S3+6H2O = 2Al(OH)3+3H2S b.how many g of water are needed in the rxn to produce al(oh)3? what is the formula i use here?? c. how many

4. ## Math(Revised)

Phoebe and Tucker are 48m apart. Phoebe looks up at an angle of 43 degrees to see a hot air balloon hovering in the sky directly between her and Tucker. Tucker looks up at an angle of 31 degrees to see the hot air balloon. A.) Explain how it could be

5. ## Vocabulary

My sister thinks she is psychic. She says she has ESPN. A. Irony B. Onomatopoeia C. Pun D. Malapropism D?

6. ## math

a plane flies northwards for 430km.if the plane flies eastward for 380km.how far is it from its starting point(ignore its height above the ground)

7. ## maths

A rectangular tank weighs 310kg,when it is half full of water and 450kg ,when it is three quarter full of water.What is the weight of the empty tank?

8. ## Urgent! Pre-Cal

A wheelchair ramp with a length of 122 inches(top of ramp) and has a horizontal distance of 120 inches(bottom of ramp): a) what is the ramp's vertical distance(x)? b)Construction laws are very specific when it comes to ramps. Each vertical rise of 1 inch

9. ## gen chem

A sample of glucose C6H12O6 contains 2.03x10^21 atoms of carbon. how many atoms of hydrogen does it contain? mole of H= 6.02x10^23/2.03x10^21? i don't know if my formula is right and i also don't know where to get the mole of H. please help me understand

10. ## Statistics

We investigate if a period of time feels longer or shorter when people are bored compared to when they are not bored. Using independent samples, we obtain these estimates of the time period (in minutes):

11. ## Vocabulary

In order to change the meaning of the word teach from "to give instruction" to "to give instruction with" you would add the prefix: A. ed B. pre C. er D. co D?

12. ## Vocabulary

Which of the following suffixes means “bearing or producing”? A. -oferous B. -oid C. -fic D. -osis C?

13. ## Vocabulary

As I walked past the bakery, the sweet, rich aroma of pastries floated through the air and tickled my nose. A. Malapropism B. Antithesis C. Irony D. Imagery D?

14. ## Vocabulary

Criticism A. Analysis B. Summary C. Critique D. Argument A is wrong. Is it C? Please help me Ms.Sue cause your always correct. Am begging for help Please.

15. ## math

find the lenght of the longest straight line which can be drawn on a rectanglelar chalkboard which measure 2.2m by 1.2m

16. ## psychology

When considering evidence of validity and associated social consequences of instruments counselors should consider all of the following except for:

17. ## Vocabulary

My teacher talked for an hour about the uselessness of long speeches. A. Idiom B. Simile C. Irony D. Metaphor D?

18. ## Vocabulary

My dad always says, “Time is money”. A. Metaphor B. Irony C. Idiom D. Pun C is wrong and a bit sure its A.Is that correct?

19. ## Vocabulary

She worked really hard on the project. The suffix -ed in the italicized word in the sentence above illustrates that the work happened in the ______ tense. A. past B. past-perfect C. future D. future-perfect B is wrong. Is it A?

20. ## physics

A 0.02kg bullet is fired at a 3.5kg block which is initially at rest on a table. The bullet embeds in the block. Friction converts the 24.02J of kinetic energy to heat and brings the block and bullet system to stop. How fast was the bullet and block system

21. ## Social Studies(I need websites to do these please)

In 1965, Congress adopted the Voting Rights Act. Describe this act. In your description, explain what led Congress to pass the act, and describe at least two of the act's effects. How has the population of South Carolina changed over the past one hundred

Explain why knowing a combination of four pairs of equal sides or equal angles guarantees one of the congruence relationships.

23. ## Science

The Haber-Bosch process, devised in the early 20th century, revolutionized global industry. It provides a way of “fixing” atmospheric nitrogen into ammonia, allowing for the production of fertilizers and the many nitrogen-based chemicals we use today.

24. ## Physics

This is a theoretical question, ignore the numbers. A 205-kg log is pulled up and to the right on a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0 degrees with respect to the horizontal. The coefficient of

25. ## Science

A machine has velocity ratio of 5 and is 60% efficient. What effort would be needed to lift a load of 200N with tge aid of this machine?

26. ## science

Three equal-sized pans containing distilled (pure water),ocean water (3 percent salt),and water from the Great Salt Lake in Utah (about 20 percent salt)are placed in freezer. Which of the following would be the order in which these three liquids would

27. ## science

A locomotive train is on its way from Chicago, IL to Madison, WI. The trip is said to last 3.15 hours. When the train arrives in Madison the conductor notices it actually took them 3.26 hours. The train company prides itself on always having its trains to

28. ## Chemistry

How many ammonia liters of ammonia gas are produced when 85 grams of liquid nitrogen completely react? N2 + 3H2 = 2NH3

29. ## Vocabulary

He is such a good singer. His talent is unparalyzed by any other. A. Antithesis B. Alliteration C. Personification D. Malapropism D?

30. ## maths

f(x)equals to 2x is in form of y equals to ax or y equals to af(x) (if f(x)equals to x) plot f(x) equals to 2x

31. ## biology

what is the habitat,observable features,economic importance,scientific name,behavioural adaptation,mode of feeding and other necessary details of a cricket.

asked by C A C WORLDWIDE
32. ## Math

A 104 ft. ladder is leaned against a wall. If the base of the ladder is 40 ft. from the wall, how high up the wall will the ladder reach? 104ft.^2 + b^2 = 40ft.^2 10,816 + b^2 = 1,600 0 + b^2 = 10,816 - 1,600 = 9,216 C^2 = SQRT of 9,216 or 96ft.

33. ## social studies

How did Congress respond to the black codes passed in many Southern states after the Civil War? (1 point)by taking away the voting rights of southerners by sanctioning the remaining Democrats in Congress by impeaching the president by expanding the power

34. ## Math

A 104 ft. ladder is leaned against a wall. If the base of the ladder is 40 ft. from the wall, how high up the wall will the ladder reach? 104ft.^2 + b^2 = 40ft.^2 10,816 + b^2 = 1,600 0 + b^2 = 10,816 - 1,600 = 9,216 C^2 = SQRT of 9,216 or 96ft.

35. ## Political science

what does realism explain best and what does it miss? what does liberalism explain best and what does it miss? what does radicalism best explain and what does it miss? what does Constructivism best explain and what does it miss?

36. ## geometry

The point A(-8, 6) is translated using T: (x,y) → (x + 5. y - 4).

37. ## physics

A ball of mass 0.1 kg, initially at rest, is dropped from height of 1 m. Ball hits the ground and bounces off the ground. Upon impact with the ground, its velocity reduces by 20%. The height (in m) to which the ball will rise is:

38. ## math

To avoid a pond, Tom must walk 10 meters south and 24 meters east. To the nearest meter, how many meters would be saved if it were possible to walk through the pond? 10^2 + 24^2 = C^2 100 + 576 + C^2 C^2 = 676 C^2 = SQRT of 676 or 26 meters

Please just make sure that my information is right and it is grammatically correct. Thank you! In 1965, Congress adopted the Voting Rights Act. Describe this act. In our description, explain what led Congress to pass the act, and describe at least two of

40. ## Math

Two boats leave the same place at the same time. The first sails in a straight line N70°W at 45 miles per hour and the second goes in a straight line S23°E at 57 miles per hour. After 1 hour, how far apart are the boats, to the nearest tenth of a mile?

41. ## Physics

A man with a mass(mm) of 71.9 kg stands up in a 95-kg canoe(mc) of length(l) 4.00 m floating on water. He walks from a point 0.75 m from the back of the canoe to a point 0.75 m from the front of the canoe. Assume negligible friction between the canoe and

How has the population of South Carolina changed over the past one hundred years? Explain whether the state has become more rural or more urban, and describe at least three challenges that accompany this shift in population. All I know is that South

43. ## Social Studies (Please check these)

What title best represents the subject of the cartoon? The title is Inch by Inch picture is of a huge door with tiny children trying to push it open a. "Change Is a Long, Slow Process" b. "Education Opens the Door to the Minds" c. "Students Take Early

44. ## math

To avoid a pond, Tom must walk 10 meters south and 24 meters east. To the nearest meter, how many meters would be saved if it were possible to walk through the pond? 10^2 + 24^2 = C^2 100 + 576 + C^2 C^2 = 676 C^2 = SQRT of 676 or 26 meters Not sure how to

45. ## Vocabulary

A poem that is told in an actual manner. A. Lyrics B. Ballard C. Sonnet D. Genre D?

46. ## Earth Science

Why are boats more efficient than airplanes? They use less fossil fuels to move

47. ## English

How to write a debate for the motion boys should not help in the kitchen

48. ## Science

Why are boats more efficient than airplanes? They use less fossil fuels to move

49. ## christian religous knowledge

who was the king that was removed from the throne by a hook in the bible

50. ## Algebra

x/x-4 - 4/x-5=- 4/x^-9x +20

51. ## Art

what training is required to be an art teacher? how long dose the training normally take?

52. ## Vocabulary

Which of the following suffixes means “the study of”? A. -eer/-or/-er B. -oferous C. -ology D. -acious C?

53. ## Algebra

2x/x-5 + 1/x-1=0

54. ## Chemistry

One of the issues caused by acid rain is the lowering of pH of small lakes, which leads to the death of numerous aquatic fish and plant species. Calcium oxide, commonly known as lime, is frequently used to temporarily remediate lakes that have been

55. ## ENGLISH

Prewriting: Choosing Your Topic Use the chart below to take notes on two literary works that you have found while browsing. These two works should have enough similarities to make connections between them and to draw comparisons. Story Author Plot

56. ## science

Find the angle of friction when rod starts sliding

57. ## physics

What is the formula to calculate the height of fluid in cylinder if the volume of fluid is known, and the length and diameter of cylinder is known? Kindly help please!

58. ## Algebra

My assignment was for each polynomial topic is to give an "example and written description." What would be an "example" and "written description" of a CONNECTION TO A QUADRATIC FUNCTIONS.

59. ## math

Find out which of these are pythagorean tripple.a(20,21,29)b(15,22,27)c(28,45,53)d(12,16,20)e(30,40,50)with workings.

60. ## Math

Hey there, just need help with these two. I need someone to help explain them to me/break them down. 1. gr 1/100=_____mg Answer: 0.6 2. 0.3mg= gr_____ Answer: 1/200 3. gr iii /ss= ______mg Answer: 210 Thank you in advance!

61. ## English

1. Watching the shining bridge from the beach is wonderful. 2. Watching the shining bridge at the beach is wonderful. 3. Watching the shining bridge on the beach is wonderful. ------------------------ Which preposition is suitable? Can we use all the

62. ## Chemistry

7. For the equilibrium system below, which of the following would increase the concentration of 𝐻2𝑂(𝑔)? 𝐶(𝑠) + 𝐻2𝑂(𝑔) + 131𝑘𝐽 ↔ 𝐶𝑂(𝑔) + 𝐻2(𝑔) a. Increased temperature b. Decreased pressure c. Decreased [CO] d.

63. ## Chemistry

For the equilibrium system below, which of the following would decrease the concentration of 𝑃𝐶𝑙3(𝑔)? 𝑃𝐶𝑙3(𝑔) + 𝐶𝑙2(𝑔) ↔ 𝑃𝐶𝑙5(𝑔) + 45𝑘𝐽 a. Increased temperature b. Decreased pressure c. Increased

64. ## Math-Calc

f(r)=r/(10r^2+7) find the critical numbers. I found the derivative to be -10r^2+7/(10r^2+7)^2 and now I am stuck. What do I do next?

65. ## science

which of the following would be a disadvantage of boiling food in salted water rather than using pure water? 1 A only 2 B only 3 C only 4 D only 5 A and D only B ONLY is the answer?!

66. ## physics

what is the frequency of unknown fork if 8 beats in 8 seconds are heard with each fork

67. ## Math

Use 18 coins to make \$1.75 I NEED LOTS OF HELP IM JUST IN FOURTH GRADE AND MY TEACHER NEVER TAUGHT ME THIS MY TEACHER IS MRS MCABE

68. ## mathematics

express 1/2 + 3/y-1 as a single fraction

69. ## math

car gets 19 miles to the gal at let's say \$3 per gal, taking an 8.5mi trip. How much does this trip cost?

70. ## chemistry

In assessing 20.0ml of NaOH 0.175M , calculate how many ml of 0.200M HCl must be added to obtain a pH of 12.55

71. ## math

32foot ladder at a 70degree angle. How high is top of ladder

72. ## science

could you use potassium nitrate to test for fluoride in mouth rinse? Is potassium nitrate a water soluble.?

73. ## Spanish

Escribe los pronombres que deben estar en los espacios. Juan compra flores a su abuela. Juan __ __ compra.

74. ## Math

Phoebe and Tucker are 48m apart. Phoebe looks up at an angle of 43 degrees to see a hot air balloon hovering in the sky directly between her and Tucker. Tucker looks up at an angle of 31 degrees to see the hot air balloon. A.) Explain how it could be

75. ## Vocabulary

Criticism A. Analysis B. Summary C. Critique D. Argument A is wrong so is D correct?

76. ## Vocabulary

A poem that is told in an actual manner. A. Lyrics B. Ballard C. Sonnet D. Genre C is wrong so is A correct?

77. ## math

A tank is 5/7 full, when 440 litres are removed it goes to 2/5. How much litres does it contain in full capacity

78. ## science

the brains of left handers may be more sensitive to drugs, says a Swiss researcher, that may be why more people are right handed. Peter Irwin of the chemical firm Sandoz limited, in Basel, gave 88 subjects 12 different drugs, the used electroencephalograms

79. ## Physics

A ball is thrown vertically upward from the edge of a bridge 29.0 m high with an initial speed of 20.0 m/s. The ball falls all the way down and strikes the water below. Determine the time it takes the ball to strike the water.

80. ## Physics

A pitcher throws horizontally a fast ball at 156 km/h toward the home plate, which is 18.2 m away. Neglecting air resistance (not a good idea if you are the batter), find how far the ball drops because of gravity by the time it reaches the home plate.

81. ## Physics

An arrow has an initial launch speed of 39 m/s. If it must strike a target 39 m away at the same elevation, what should be the projection angle?(Hint: sin2θ = 2sinθcosθ)

82. ## Vocabulary

When someone needs help, I try to lend a hand. A. Alliteration B. Antithesis C. Idiom D. Imagery C?

83. ## physics

A car is travelling at 20m/s along a road. A child runs out into the road 50m ahead and the car driver steps on the brake pedal. What must the car's declerations be if the car is to slop just before it reaches the child .

84. ## Science

I've been asking questions and all you so called "helpers" (such as Reed, Writeacher, etc.) you are all being sarcastic. I have no interests to cheat, but you don't listen to my side notes. I am going to ask one more question, and again, be don't be