# Emily

Questions and answers by visitors named Emily

## Questions

1. ### Why did Quakers and other religious leaders in the North oppose slavery?

A. They believed it was a sin for one person to own another person. B. They had many African American followers. C. They felt African Americans should be fairly paid for their

2. ### How were the lives of children in the middle of the nineteenth century different from previous generations?

A. They were working in factories or fields. B. They were children of professional parents. C. They were given the opportunity to go to college. D.

4. ### Which of the following is the best example of how many Pacific islands have adapted to a mix of different ethnic groups?

A.They have developed national pidgin languages.*** B.They have populations where immigrants make up the majority. C.They practice

5. ### A baseball is thrown upwards from a height of 2 meters with an initial velocity of 10 meters per second. Use the fact that -9.8 meters per second squared is constant acceleration due to gravity to answer the following:

The maximum height of the ball The

6. ### A bag contains 6 red marbles, 3 white marbles, and 7 blue marbles. You pick a marble without looking. Find the probability of drawing a white marble.

Can someone please explain how I would work this out?

11. ### "How many grams of NH3 can be produced from the reaction of 28 g of N2 and 25 g of H2?

N2 + 3H2 ---> 2NH3 ==> 28 g N2 x (1 mol N2/14.0 g N2) x (2 mol NH3/1 mol N2) x ( 17.0 g NH3/ 1 mol NH3) = 68 g NH3 25 g H2 x ( 1mol H2/2.0 g H2) x (2 mol NH3/3 mol H2) x

12. ### Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s.

What is the net force acting on the body?

19. ### Below are the functions of y=|x| and y=|x|-5. how are the functions related?

A. the functions have the same shape. the y-intercept of y=|x| is 0 and the y-intercept of the second function is 5 B. the functions have the same y-intercept. the second function

20. ### A particle hangs from a spring and oscillates with a period of 0.2 s.If the mass-spring system remained at rest,

by how much would the mass stretch it from its normal equilibrium position? The acceleration of gravity is 9.8 m/s^2

23. ### Q. A farmers in Alberta often deliver wheat to grain elevators using grain truck, which are a type of dump truck.

A farmer make two trips to a grain elevator. The grain elevator manager measures the combined mass of the farmer's truck and wheat in tonnes

27. ### Given any right triangle with an acute angle theta, a) Explain why csc theta is always greater than or equal to 1

b) Explain why cos theta is always less than or equal to 1

28. ### An engineer is designing a parabolic arch. The arch must be 15 m high, and 6 m wide at a height of 8 m. a) Determine a quadratic function that satisfies these conditions.

I've got : 8=a(6-h)^2+15, but i don't know what to do next.

30. ### A cook needs 5 cups of vegetable stock for a soup recipe. How much is this in pints?

Write your answer as a whole number or a mixed number in simplest form. Include the correct unit in your answer. And the units are, fl oz, C, pt, qt, gal. And you can write

33. ### If log 3=A and log 5=B express

Log 75 in terms of A and B. (using the Law of Exponents)

34. ### "The fourth act opens and ends with Bottom at center stage. What is your opinion of Bottom's character? How might he be the antithesis, or opposite, of Theseus's character?"

Does anyone know how to answer the last part of the question? I didn't even realize

38. ### A lighthouse with a rotating beam is located 500m south of a coastal cliff that runs west to east

a) determine a relation for the distance from the lighthouse to the point the light strikes the cliff in terms of the angle of rotation x b) determine an exact

47. ### A buoy oscillates in simple harmonic motion as waves go by. The buoy moves a total of 3.5 feet from its low point to its high point and it returns to its high point every 10 seconds.

What is the equation that describes this motion if it reaches its high

49. ### Find the missing length. Round to the nearest tenth of necessary.

It is a right triangle with side a being 8 ft and side b being 21ft what is the length of the 3rd side? A 441 B 22.5 C 64 D 19.4* Am I right and please explain I am a little confused.

51. ### Find the area of the region bounded by the curves y = x^(-1/2), y = x^(–2), y = 1, and y = 3.

a) (1/2)(3)^1/2 + (4/3) b) 2*(3)^1/2 - (8/3) c) (1/2)(3)^1/2 - (32/3) d) 2*(3)^1/2 - (32/3) e) (8/3) - 2*(3)^1/2 So one thing that is throwing me off on this

52. ### The colour of some clothing fades overtime when washed. Suppose a pair of jeansfades by 5% with each washing. To the nearest wash, how many washes would it take so that only 25% of the original colour remains in the jeans?

1. first term = 2. r = 3. tn = 4.

53. ### Piston 1 has a diameter of 0.643 cm.

Piston 2 has a diameter of 4.59 cm. In the absence of friction, determine the force required on piston 1 necessary to support an object, m, with weight 1151 N. (Neglect the height difference between the bottom of the two

Thanks

56. ### Determine the stopping distances for an automobile with an initial speed of 95km/h and human reaction time of 1.0s:

(a) for an acceleration a= -5.2m/s^2 (b) for a= -6.7m/s^2

57. ### addition of a strong acid would increase the solubility of which of the following salts

AgCl CaSO4 CdS CaCO3 PbBr2 CaHPO4 Cd(OH)2 AuCl

58. ### Cliff has some money he wants to invest for his retirement. He is offered two options:

1. 10%/a simple interest 2. 5%/a compounded annually Under what conditions should he choose the first option?

59. ### The hypotenuse of,c of right triangle ABC is 7.0 m long. A trigonometric ratio for angle A is given for four different triangles. Which one of these triangles has the greatest area? Justify your decision. a)sec A=1.7105 b)cos A=0.7512 c) csc A=2.2703 d)sin

30. What is Earth's rotational speed at (a) Bangor, Maine (latitude 45 degrees N) and (b) Rio de Janeiro, Brazil (latitude 23 degrees S)? (It's given in the problem also that Earth's rotational speed at the

64. ### Why did rogue states become more prominent following the Soviet Union’s collapse?

I know what a rogue state is but I don't know why it is involved with the Soviet Union and their collapse. I also know that it has something to do with the Cold War. Can you

66. ### A stained glass window has an area of 900 square inches.

A. Once a window design is made of rectangular pieces that are 5 inches by 3 inches. How many stained glass pieces are used in the window? B. Another window design is made of square stained glass

69. ### CLIMATOLOGIST Each year a tree is alive,it adds a layer of growth,called a tree ring,between its core and its bark. A climatologist measures the width of tree rings of a particular tree for different years:

YEAR: 1900:1910:1920:1930:1940 Width of

72. ### A high-speed sander has a disk 5.70 cm in radius that rotates about its axis at a constant rate of 1120 revolutions per minute.

a.) Determine the angular speed of the disk in radians per second. b.) Determine the linear speed of a point 2.40 cm from the

73. ### what is the amount of orange juice, written as a fraction grater than 1, that is used in the recipe?

1/2 cup frozen strawberries 1/2 cup frozen peaches 1/4 cup vanilla yogurt 1 1/2 cups orange juice

74. ### The one who got away

h t t p : //imgur . c o m /S4filEB

79. ### An athlete whirls a 6.6 kg hammer tied to

the end of a 1.2 m chain in a horizontal circle. The hammer moves at the rate of 0.432 rev/s. What is the centripetal acceleration of the hammer? Assume his arm length is included in the length given for the chain.

80. ### According to the Guinness Book of World

Records (1990 edition, p. 169), the highest rotary speed ever attained was 2010 m/s (4500 mph). The rotating rod was 15 cm (5.9 in) long. Assume the speed quoted is that of the end of the rod. What is the centripetal

81. ### A baseball player uses a pitching machine to

help him improve his batting average. He places the 43.4 kg machine on a frozen pond. The machine ﬁres a 0.0546 kg baseball horizontally at a speed of 44.8 m/s. What is the magnitude of the recoil velocity of

87. ### A baseball is hit at a point of 3 feet above ground at a velocity of 100 feet per second and an angle of 45 degrees. The path of the baseball is h(x)= -0.0032(x-156.25)squared+87, where x and h(x) are measured in feet.

A. what is the baseball's maximium

88. ### Which one of the following lines best illustrates personification?

A. The fog comes on little cat feet B. She floated graceful as a dove C. Spring is a dream unsung D. A narrow wind complains all day

90. ### The point (-8,3) lies on the terminal arm of angle theta in standard position. Determine the primary trigonometric ratios for angle theta and calculate the value of theta to the nearest degree.

Only the sine ratio was positive, and when I used that to

91. ### Cliff has some money he wants to invest for his retirement. He is offered two options:

1. 10%/a simple interest 2. 5%/a compounded annually

92. ### Use the related acute angle to state an equivalent expression:

a) tan 110 degrees b)sin 350 degrees

98. ### What is the apparent size of an object 1 cm long held 80 cm from your eyes?

==> When they say "apparent size", they mean the angle from which one object is viewed by, say, a person (or in this case a pair of eyes). I thought I'd be able to find the angle by

99. ### I need help identifying verbs in a passive and active voice.

1. Masai, a people of East Africa, live in kraals, or small villages. (Verb=live, A) 2. The village is surrounded by a thick round fence. (verb=is surrounded, P) 3. The kraal contains about 10 to