# Austin

Most popular questions and responses by Austin
1. ## Math

Ms. Sue please help! A radio signal travels at 3.00 • 10^8 meters per second. How many seconds will it take for a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height of 3.54 • 10^7 meters? Show your

2. ## history

Drag the words to the boxes in the sentences. Burmese Khmer porcelain reservoirs Indonesia Mekong By the ninth century, the empire had emerged in eastern Indochina. It developed around agriculture and used to store water. To the south, the Srivijaya empire

3. ## Math

Top ten scores on a quiz in two classes are listed below Class A 100,100,100,90,95,85,92,98,92,88 class B 100,100,98,95,95,96,95,92,81,88 which statement is true concerning the data a. the mode is the same for both classes b. the range is the same for both

4. ## Science

Ms. Sue please help. 8. Which would best reduce the amount of energy needed to pull a wagon up a ramp? (1 point) increasing the slope of the ramp reducing the friction between the wagon wheels reducing the length of the wagon handle increasing the friction

5. ## Physical education

Five branches of physical education

6. ## spelling

what is the answer to this analogy brother:mother::fly:???? must start with the letters scr,spr,str,or thr brother:mother:fly brother:mother::fly:???? must end with scr, spr, str, thr brother:mother::fly:???? must end with scr, spr, str, thr i don't know i

7. ## Algebra 2

An object is dropped from a small plane. As the object falls, its distance, d, above the ground after t seconds, is given by the formula d = –16t2 + 1,000. Which inequality can be used to find the interval of time taken by the object to reach the height

8. ## History

Ms. Sue please help! 3. Read the passage and answer the question that follows: Many slaves preferred not to escape their horrible lives on plantations because their families were often with them. Despite the fact that slaves had no rights, they often found

9. ## Algebra 2

Find the period and the amplitude of the periodic function. y=-4 cos 8x

10. ## Math

Ms. Sue please help! 7. Suppose you earned 7t – 1 dollars on Monday and 8t + 5 dollars on Tuesday. What were your total earnings? Simplify your answer. (1 point) –t + 4 dollars –t – 6 dollars 15t – 6 dollars 15t + 4 dollars 8. f 2 ∙ f 3 (1

33. ## Science

10. Metal cations are atoms that have a positive charge. What type of bond is a metal cation likely to form? (1 point) covalent bond double bond single bond ionic bond my answer is d

34. ## Physics

The lens and mirror in the figure below are separated by d = 1.00 m and have focal lengths of +74.8 cm and -42.2 cm, respectively. An object is placed p = 1.00 m to the left of the lens as shown.

35. ## Physical Science

Which of the following materials is useful for making molds because it has a low melting point? 1. wood 2. metal 3. clay 4. wax

36. ## Math

A farmer has 54m of fencing with which to build two animal pens with a common side. one pen is rectangular; the other is square. if the area of the pens is to be maximized, what are their dimensions?

37. ## physics

Scientists want to place a 3100 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 1.9 times the radius of Mars above the surface of the planet. Here is some information that will help solve this problem: mmars =

38. ## chemistry

A piece of a newly synthesized material of mass 25.0 g at 80.0 ◦ C is placed in a calorimeter containing 100.0 g of water at 20.0 ◦ C. If the ﬁnal temperature of the system is 24.0 ◦ C, what is the speciﬁc heat capacity of this material?

39. ## math

by what approximate factor is the intensity of an earthquake with magnitude 5.4 greater than an earthquake with magnitude5.3?

40. ## chemistry

How much heat is required to heat 28 g of solid silver from 130 ◦ C to liquid silver at 961 ◦ C? The speciﬁc heat of solid silver is 0.235 J/g · ◦ C, and the heat of fusion of silver at its melting point of 961 ◦ C is 11.3 kJ/g. Answer in units

41. ## Physics

Completing a lab assignment and was wondering if anyone could look over my work. A 5.0-g mass is sandwiched between two springs with spring constants k1 and k2. The mass is displaced 10 cm from its equilibrium position and makes sixteen complete

42. ## economics

Review: Full, Anonymous: No Week 3 Homework Please answer the following questions: 1. The following information describes the value Lori Landlord places on having her five apartment houses repainted. She values the repainting of each apartment house at a

43. ## Physical Science

Which of the following is not a pure substance? 1. milk 2. oxygen 3. water 4. carbon dioxide

44. ## Statistics

Scores on a mathematics examination appear to follow a normal distribution with mean of 65 and standard deviation of 15. The instructor wishes to give a grade of “C” to students scoring between the 60th and 70th percentiles on the exam. What score

45. ## 3rd

things that come in groups of 11

46. ## Chemistry

How do I balance chemical equations? Here's an example problem C2H5OH +O2 --> CO2 + H20 Thanks!

47. ## English

Is Young Goodman Brown a dynamic character?

48. ## History

Which most accurately traces the changing attitudes of the protesters during the year-long Arab Spring demonstrations? The protests began with Egyptian citizens calling for social reforms, but as protests spread, Tunisian fundamentalists urged the adoption

49. ## math

How many integers satisfy the inequality \left| \frac { 10(x+1) } {x^2 + 2x + 3 } \right| \geq 1?

50. ## Language arts

In which sentence about “Two Kinds” is the word nonchalantly used correctly? The family nonchalantly moved to United States from China. The piano was reconditioned nonchalantly. The daughter nonchalantly announced she was quitting piano. The mother

51. ## chemistry

Find the pH of 1.0 x10-8 M KOH solution I tried to find it but i got 6 and that's acidic not basic.

52. ## economics

Suppose we have the following market supply and demand schedules for bicycles: Price Quantity Demanded Quantity Supplied $100 70 30$200 60 40 $300 50 50$400 40 60 $500 30 70$600 20 80 Plot the supply curve and the demand curve for bicycles. (Note please

53. ## Alg 1

The largest town square in the world is Tiananmen Square in Beijing, China, covering 98 acres. A. 1 sq mile is 640 acres. Assuming that the Tiananmen Square is a square, how many feet long is a side to the nearest foot? B. To the nearest foot, what is the

54. ## Math

The sum of two numbers is 70.4. One of the numbers is 9 times the other. What are the 2 numbers?

55. ## Math

A plane flying at an altitude of 10,000 feet begins descending when the end of the runway is 50,000 feet from a point on the ground directly below the plane. Find the measure of the angle of descent (depression) to the nearest degree.

56. ## economics

Week 3 Homework Please answer the following questions: 1. The following information describes the value Lori Landlord places on having her five apartment houses repainted. She values the repainting of each apartment house at a different amount depending on

57. ## chemistry

A .523g sample of a mix of Na2co3 and Nahco3, is titrated with .1 HCl requiring 17 ml to reach the phenolphthalein end point and a total of 43.8 ml to reach the methyl orange end point. What is the percent of each of na2co3 and nahco3 in the mixture?

58. ## Algebra 1

Write the equation in slope-intercept form of the line that is parallel to the given line and passes through the given point. Y=2x+1; (5,-1)

59. ## Physics

A bathroom heater uses 10.5 A of current when connected to a 120. V potential difference. How much power does this heater dissipate?

What catastrophe makes your kitten happy?

61. ## geometry

How do you find the surface area of rectangular prisms and cylinders??????

62. ## Statistics

Battery manufacturers compete on the basis of the amount of time their products last in cameras and toys. A manufacturer of alkaline batteries has observed that it's batteries last for an average of 26 hours when used in a toy racing car. The amount of

68. ## Algebra II

In a right triangle, the length of the longer leg is 7 more inches than the shorter leg. The length of the hypotenuse is 8 more inches than the length of the shorter leg. A). If the shorter leg is representd by x, write expressions for the longer leg and

69. ## Chemistry

Given the standard heats of reaction Reaction ∆H0 M(s) + 2 X2(g) → MX4(g) −123.7 kJ/mol X2(g) → 2 X(g) +297.3 kJ/mol M(g) → M(s) −25.1 kJ/mol calculate the average bond energy for a single M X bond. Answer in units of kJ/mol

72. ## physics

A person jumps from the roof of a house 4.0- high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.74. 1)If the mass of his torso (excluding legs) is 40 , find his velocity just before

73. ## Chemistry

A sample is taken that has 400,000,000 particles in it. If 20 of these particles are a dangerous chemical, what is the concentration of this chemical in parts-per-million (ppm)?

74. ## Chemistry

Oxygen gas, from the decomposition of KClO3, was collected by water displacement. The pressure and temperature in the lab during the experiment were 451.0 torr and 20.0 C. What was the partial pressure of oxygen?

75. ## Physical Science

If an unknown substance cannot be broken down into a simpler substances, it is 1. a compound 2. an element 3. made of one kind of atom 4. both 2 and 3

76. ## Chemistry

A step-down transformer has 200 turns of wire in its primary coil. How many turns are in the secondary coil if the input voltage = 120V, and the output voltage = 6V

77. ## Algebra II

Solve each logarithmic equation. Check for extraneous solutions log42 = log21 +log(x-1)

78. ## Chemistry

Write so the charges are equal Li+ and OH1- Ca2+ and O2- Al3+ and PO43- Na1+ and S2- Zn2+ and Cl1- Al3+ and 02-

79. ## math

suppose a single die is rolled find: a) P(6, given that an odd number is rolled) b) P(5, given that ann odd number is rolled) is a) 0 and b) 1/6

80. ## Physics

An ideal gas was slowly compressed at constant temperature to one-half it’s original volume. In the process, 150 kcal of heat was given off. How much work was done by the gas (in joules)?

81. ## math

a retailer planned to buy some computers from a total of sh 1,800,000. before the retailer could buy the computers the price per unit was reduced by sh 4000. this reduction in price enabled the retailer to buy 5 more computers using the same amount of

82. ## chemistry

A scientist measures the standard enthalpy change for the following reaction to be -53.4 kJ : Ca(OH)2(aq) + 2 HCl(aq) CaCl2(s) + 2 H2O(l) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of

83. ## Chemistry

Write down the electron configuration of the Cu(I) ion in the format 1s2_2s2_2p6_etc_etc.

84. ## History

Ms. Sue please help! 1. Which factor contributed most to the beginning of the women's rights movement in the United States during the mid-1800s? (5 points) a dramatic increase in women's participation in the workforce a shift in social attitudes brought on

85. ## English plural form

Is plural for Kelly....Kellys or Kelly's?

86. ## Algebra II

Given polynomial function f and a zero of f, find the other zeroes. f(X)=4x^3-25x^2-154x+40;10

87. ## math

when the price of an item was increased by sh.5, i bought 2 items fewer with sh 200. what is the current price of the item?

88. ## Physics

How can I find the distance? Mountain pull. A large mountain can slightly affect the direction of “down” as determined by a plumb line. Assume that we can model a mountain as a sphere of radius R = 2.00 km and density (mass per unit volume) 2.6 × 10^3

89. ## Physics

An object initially at rest experiences an acceleration of 1.4 ­m/s² for 5.6 s then travels at that constant velocity for another 9.3 s. What is the magnitude of the object’s average velocity over the 14.9 s interval?

90. ## Algebra II

The profit P, in dollars, gained by selling X computers is modeled by the equation P+-5X^2+1000x+5000. How many computers must be sold to obtain a profit of 55,000

91. ## Math

Neema did y tests and scored a total of 120 marks. she did two more tests which she scored 13 and 14 marks. The mean score of the first y tests was 3 marks more than the mean score for all the tests she did. Find the total number of tests that she did.

93. ## Math

given a standard deck of 52 cards, 3 cards are dealt. If each card is replaced in the deck (and the deck is well shuffled) after being dealt answer the questions below. 1. If the first two cards are queens, what is the probability that you will be dealt

94. ## Science

I'm doing a final lab for my Chemistry class, which entails the reaction of Aluminium and hydrochloric acid to produce gas that we are supposed to collect in mL. I have been assigned to collect exactly 215 mL = .215 L but I must have the correct amount of

95. ## Physics

Suppose that a comet that was seen in 545 A.D. by Chinese astronomers was spotted again in year 1937. Assume the time between observations is the period of the comet and take its eccentricity as 0.11. What are (a) the semimajor axis of the comet's orbit

96. ## math

A box contained some red, blue, and green markers. For every 5 red markers, there were 2 blue markers. For every 3 blue markers, there were 5 green markers. a. Find the ratio of red markers to blue markers to green markers. b. When 6 red markers were

97. ## chemistry

A scientist measures the standard enthalpy change for the following reaction to be -53.4 kJ : Ca(OH)2(aq) + 2 HCl(aq) CaCl2(s) + 2 H2O(l) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of

98. ## math

A Retailer planned to buy some computers from a total of sh 1800000. before the retailer could buy the computers the price per unit was reduced by sh 4000. this reduction in price enabled the retailer to buy 5 more computers using the same amount of money

99. ## College Algebra

A cars value is declining exponentially. The car is currently 3 years old and has a value of 18,000. The car sold for 26,000 brand new. Find the rate at which the value of the car is decreasing. So far my equation is 18,000=26,000 (3-.04)^the But I'm not