Dylan

Most popular questions and responses by Dylan
1. Health

The functional unit of the nervous system is.. A. The Neuron B. The Brain*** C. A reflex D. The cerebrum

2. Science

1.) Why is it important to have a quiet study space? It is easier to concentrate in a quiet space, and concentration is needed to learn. * It is easier to leave all your study material in a quiet study space so you can find it. A quiet study space prevents

3. English

Which of the following sentences from "Five Hours to Simla" best supports the story's theme about the clash between modernization and traditional life? A:"After the first cacophony of screeching brakes and grinding gears, there followed the comparatively

4. English

26. identify the degree comparison for the underlined word the most original idea was suited by a pair of tenth graders (Most original is underlined) A. Positive B. comparative c. superlative d. none of the above I think it is c identify the degree of

5. Science

Which of the following would best explain why a species of wildflower native to Switzerland is observed growing in the wild in Montana? Wind dispersed seeds of the wildflower.* Water dispersed seeds of the wildflower. A human brought and dispersed the

6. Chemistry

consider the following reaction: 2CH3OH(g) yields 2CH4(g) + O2(g) change in enthalpy= 252.8kJ Calculate the amount of heat transferred when 26.0 g of {\rm CH_3OH} (g) is decomposed by this reaction at constant pressure.

7. Physics

A disk at rest experiences a constant angular acceleration for t = 85 s, at the end of which it is spinning with a frequency of f = 45 rpm. Please answer the following questions. A)Write an expression for the magnitude of the angular velocity of the disk

29. Algebra

Image of one smaller cube labeled with fish food with dimensions of one-quarter feet on each side. Larger cube labeled shipping box with dimensions of length 3 and three-fourths feet; width of 3 feet; height of 3 and one-quarter feet. Determine how many

30. Chemistry 1201

An unknown compound contains only carbon, hydrogen, and oxygen (C?H?O?). Combustion of 6.50 of this compound produced 9.53 g of carbon dioxide and 3.90 g of water. 1) How many moles of Carbon? 2) How many moles of Hydrogen?

31. Chemistry

What is the oxidized substance in the following reaction? Fe + 2HCl → FeCl2 + H2

Find the vertex of the equation given. Equation: y=-2(x-5)(x-1)

33. Math 11

From a weather balloon high in the air, the angle of depression of a ground marker is 27.8 degrees. If the balloon rises 345 m straight up the angle of depression from this higher point is 46.2 degrees. How high above the ground is the balloon?

34. Biology

A chemical known as a fertex affects external fertilization of sea urchin eggs. An experiment was set up using three tanks to investigate the effect of fertex. Each tank had a different concentration of fertex: 1%, 2%, and 3%. Ten sea urchin eggs and 2mL

1.) if m

36. HISTORY

WHAT IS MOKSHA A.THE CASTE OF PRIESTS B.BECOMING ONE WITH BRAHMAN .C THE FIRST SET OF SACRED HYMNS D. A TEACHER IN HINDUISM

37. chemistry (Bohr model)

The second ionization energy of He is almost exactly four times the ionization energy of H, and the third ionization energy of Li is almost exactly nine times the ionization energy of H: IE (MJ mol-1) H(g) --> H +(g) + e- (1.3120) He+(g) --> He2+(g) + e-

38. US History

Read the following quote from Thomas Jefferson: "A wise and frugal government, which shall leave men free to regulate their own pursuits of industry and improvement, and shall not take from the mouth of labor the bread it has earned—this is the sum of

39. geometry

there is a rectangular parking lot with a length of 2x and a width of x what is the ratio of the perimeter of the parking lot to the parking lot, in terms of x?

40. english

how to diagram this sentence The man in the back row brought his friends with him.

41. Career

What does it mean to govern? A: to make laws B: to enforce laws C: to lead community D: to put people in prison. Is it C? You are building a new home. You need permission from which of the following? A: city planner B: Mayor C: building inspector D: Health

42. Science

What happens when you combine lemon juice and ammonia?

43. Math

A running tap dispenses 0.15 gallons of water every second. How many pints of water is dispensed after 20 seconds? Please show me how to get the answer.

44. Algebra

How many real number solutions does the equation have? 0 = -7x^2 + 6x + 3 one solution two solutions** no solution How many real number solutions does the equation have? 0 = 2x^2 - 20x + 50 one solution two solutions no solution**

45. Algebra

The table shows the number of miles driven over time. Find the rate of change. x- y- 4 | 204 6 | 306 8 | 408 10 | 510 A.) 51/1; Your car travels 51 miles every 1 hour. * B.) 204; Car travels 204 miles C.) 1/51; Car travels 51 miles every 1 hour. * The

46. social studies

i need help on European history questions.

47. College Physics I

A helicopter traveling upward at 120 m/s drops a package from a height of 500 meters. To the nearest second how long does it take to hit the ground?

48. Social Studies

Why did Adams increase the size of the American Navy? a.) He wanted to prepare for an all-out war on Britain. b.) He hoped it would deter more attacks by French ships. * Is this right?

49. Algebra

pete has twice as many $2 bills as$5bills. together they total $153. how many$5 bills does he have.

58. Chemistry

How many moles of oxygen (O2) are required to completely react with 27.4 mol of H2?

59. Inorganic Chemistry

Use Slater's rules to calculate the effective nuclear charge, Z* or Zeff, for a 4f electron in Eu, Tb, and Dy.

60. Trigonometry

A bridge across a valley is 150 m in length. The valley walls make angles of 60° and 54° with the bridge that spans it, as shown. How deep is the valley, to the nearest metre?

64. College Physics

On planet Z, the standard unit of length is the foose. Ann the Astronaut is 5.90 feet tall on earth. She lands on planet Z and is measured to be 94 foosi tall. Her partner Rachael is 88 foosi tall. How tall is Rachael on Earth?

65. Math

The coordinates of a point on a coordinate grid are (−3, 7). The point is reflected across the x-axis to obtain a new point. The coordinates of the reflected point are A. (−3, −7) B. (3, −7) C. (−3, 7) D. (3, 7) I think the answer is A

66. Chemistry

For the following reaction, identify the substance being oxidized and reduced CH4 + 2 O2 = CO2 + 2 H2O

67. physics

A positively charged solid sphere of radius 100 mm has a uniform volume charge density of 250 nC/m^2. Determine the electric field (a) 20 mm, (b) 90 mm, and (c) 110 mm from the center of the sphere.

68. Math

A turtle crawled 21 meters in 12 minutes. How long did it take her to crawl 14 meters if she crawled at the same rate the whole time???? 21÷12= 1.75 meters per min so 14÷ by 1.75 is 8 min correct. Or am I way off if so please explain

69. Math

A rectangular prism has a volume of 7.875^3 and a hight of 3.5. What is the area of the base of the prism Show me the steps

70. Visual Basic - Computer Science

I'm trying to right a program with Multidimensional Arrays. These are the instructions for the program: The Valley Boulevard (VB) Auto Center management is pleased with your progress in developing their system. They require you to develop a new feature for

71. Physics

1. A photographer uses a camera lens with focal length of 50.0 mm to photograph a tree that is 4.60 m tall. She wishes to fill her 24.0-mm slide with the tree. (a) How far from the lens should the film be? 1/o + 1/24 = 1/50 600 + 25o = 24o o = -600/13 or

72. physics

GPS satellites orbit the earth about 20,000 km above the surface of the earth. The radius of the earth is 6,371 km. What is the acceleration due to earth’s gravity on the GPS satellites? i've tried fooling around with the A = V^2/ R and V = 2pir/T

73. CHEMISTRY

which of the following represent a buffer system? A.) NaOH and NaBr B.) HF and NaF C.) HC2H3O2 and C12H22O11 D.) HCl and KOH

74. english

what is the adverb in the sentence They are always late for ballgames. is it always

75. Science

Which terrestrial planet has an atmosphere similar to Earth's? Mars* Venus None of the above

76. Physics

A boat is pulled through a canal by horses walking parallel to the canal and exerting a force of 1000 N on a tow rope 40 meters long. If the distance from the boat to the horse track is 15 meters, what is the magnitude of the effective component pulling

77. Physics

A helicopter traveling upward at 106 m/s drops a package from a height of 500 meters. To the nearest second how long does it take to hit the ground? I'm not sure what numbers to use. What formula to use or anything.. I think 106 m/s is the Vo^2 and 500 m

78. English

Which of these sentences from the story is an example of a hyperbole? Orpheus and Eurydice. A.) Soon he saw the River Styx, which separates the Underworld from the world of the living. B.) He was the King of Thrace, the most musical of all the Greek

79. Physics

A crow is flying horizontally with a constant speed of 2.50 m/s when it releases a clam from its beak. The clam lands on the rocky beach 2.20 s later. Consider the moment just before the clam lands. (Neglect air resistance.) A) What is its horizontal

80. geography

What does Pig ears stand for?

81. Health

The legal drinking age in the US is 21. True * False The legal BAC for underage drivers is less than 0.4 True * False If you have food in your stomach, it will soak up the alcohol. True False* If someone takes an aspirin before they drink, it'll prevent a

82. Math 11

From a window in a building 20 m above ground the angle of depression of the top of a statue across the street is 30 degrees, and the angle of depression of the base of the statue is 34. How tall is the statue?

83. physics

A ferry is crossing a river. The ferry is headed due north with a speed of 1.1 m/s relative to the water and the river’s velocity is 4.2 m/s to the east.Find the direction in which the ferry is moving (measured from due east, with coun- terclockwise

84. Algebra

Evaluate this expression for a= -2 2a to the 3rd power times (2a) to the 3rd power

85. Chemistry

If a gas sample has a pressure of 30.1 kPa at 0.00C, by how many degrees Celsius does the temperature have to increase to cause the pressure to double?

86. World History

The Vedic Age is known for of all of following except A. the concept of zero B. Hinduism C. the Vedic calendar D. the use of manure to enrich the soil

87. Algebra

To which subsets of real numbers does -22 belong in? A.) whole numbers B.) rational numbers C.) integers * D.) irrational number * E.) natural numbers

88. History

1. Abraham Lincoln cause four states to join the confederacy by _____ A. Declaring War B. Firing on Fort Sumter C. Emancipating the enslaved people D. Calling for troops*** 2. What Confederate capital was only about 100 miles from Washington D.C.? A.

89. Algebra

In the expression -7x - 5x^2 + 5, what is the coefficient of x? A.) 7 B.) 5 C.) -5 D.) -7* I don't know if -7 or 5 is the coefficient, but -7 was my first choice. Can someone check this?

90. Algebra

What are the first four terms of the sequence represented by the expression n(n - 1) - 4? A.) -2, 2, 6, 10 B.) -3, 0, 3, 6 C.) -4, -2, 2, 8 D.) -5, -4, -2, 6 I don't get this question, can someone help please?

91. chemistry

How many milliliters of 3.0 M hydrochloric acid are i required to prepare 500 milliliter of 1.0 M Hydrochloric solution

92. physics

A truck is stopped at a stoplight. When the light turns green, it accelerates at 2.7 m/s2. At the same instant, a car passes the truck going 18 m/s. Where and when does the truck catch up with the car?

93. math

The equation 9c-5f+160=0 describes the relationship between temperature, C, in degrees Celsius, and temperature, F, in degrees Fahrenheit. b)graph this relation.

94. math

The number of students at a university is 1320, and the number increases by 8% each year. Write an exponential function to model this situation. Then find about how many students there will be in 5 years.

95. Chemistry

I have a few problems im having trouble with, any help..? 1. If a peice of aluminum with mass 3.90g and a temperature of 99.3C is dropped into 10.0cm^3 of water at 22.6C, what will be the final temperature of the system? 2. If a peice of cadmium with a

96. Modern World Studies

How does climate affect the ways that Latin Americans live? Climate only affects the success of crops. Climate does not affect the way people live. Climate affects the variety and success of crops and they type of clothing and shelter needed to survive.

97. Math

Complete these ratio tables for two paint mixtures Peacock purple 2 5 ___ 15 14 __ Purple plum 7 3 __ 15 14 ____

98. Math

Maria plots the locations of 4 places on a coordinate grid as given below Her house is at (−4, 9). Her school is at (−4, 3). The community center is at (1, 3). The grocery store is at (−4, −8). Part A: Use absolute values to calculate the distance

99. chemistry

The reaction described by the equation Zn + Hg2Cl2 2Hg +Zn+2 + 2Cl is run on electrochemical cell. The E^0 of the cell at 25 degrees C is 1.03V. In the same cell, [Cl-]=.10 M and [Zn+2] is unknown, and the measured cell voltage is 1.21V. Compute the value