# star

Popular questions and responses by star
1. ## math

A semi-circle sits on top of a rectangle to form the figure below. Find its area and perimeter. Use for 3.14. The rectangle is 4 inches long and 3 inches wide. The semi-circle sits on top of the rectangle on a side that is 4 inches long.

2. ## physics

a 20 ohm and 60 ohm resistors are connected in series to a DC generator. The voltage across the 20 resistor is 80 volts. The current through the 60 ohm resistor? A) 1.0A B) 5.0 A C) is about 1.3 A D)4.0 A E) cannot be calculated

3. ## physics

A sailor in a small sailboat encounters shifting winds. She sails 2.00 km east, then 3.50 km southeast, and then an additional distance in an unknown direction. Her final position is 5.80 km directly east of the starting point. a) Find the magnitude of the

4. ## physics

if a stone at the end of a string is whirled in a circle, the inward pull on the stone A) is known as the centrifugal force B) is inversely proportional to the speed of the object C) is inversely proportional to the square of the speed D) is proportional

5. ## Science

Helium gas is added to a ballon already partially filled with helium gas the balloon inflated because the

6. ## physics--drwls

A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.77 m/s^2 for 15 s 2. Constant velocity for the next 2.05 min 3. Constant negative acceleration -9.47 m/s^2 for 4.39 s. (a) What was the total

7. ## Chemistry

Some hydrogen gas is collected over water at 20.0 Cel. and the levels inside the container is the same. The partial pressure of hydrogen is 742.5 torr. What is the barometric pressure as the time the gas was collected. My answer is 742.5 torr = 17.5 torr =

8. ## Math

1. A colony of bacteria grows exponentially according to the function where N is measured in grams and t is measured in days. N(t)=100e^0.045t You may use graphical method or algebraic method. Please show work if algebraic or show the graph if graphical

9. ## Science

Which of the following statements describes the most serious , long term , environmental damage produced by oil spills in the ocean ?

10. ## algebra 1

what kind of shoes does a frog wear

11. ## Physics

a metal ball of radius R is placed concentrically inside a hollow metal sphere of inner radius 2R & outer radius 3R. The ballis given a charge +2Q and the hollow sphere a total charge -Q. Calculate. electrostatic potential energy of system.???

12. ## Algebra 2

for the functions f(x) = 5x +50 and g(x) = 1/5x -10 evaluate both f(g(x)) and g(f(x)). Are these functions inverses? do you put them into each other?

13. ## CHEM

Trying to figure out how to draw the structure 2-bromo-4-phenylpentane I thought it was a five carbon strong with the ring on the second C and a Br on the 4th - but that's not correct (or not completely correct) What am I doing wrong?

14. ## math

A movie theatre sells two types of tickets: adult and child. On Tuesday, the theatre sold 100 adult tickets and 70 child tickets and made a total of \$1,100. On Wednesday, the theatre sold 50 adult tickets and 50 child tickets and made a total of \$625. How

15. ## Chemistry

How many liters of air (78 percent N2, 22 percent O2 by volume) at 20 degrees Celsius and 1.00 atm are needed for the complete combustion of 1.0 L of octane, C8H18, a typical gasoline component that has a density of 0.70 g/mL?

16. ## pe

which of the following factors would most likely cause a hurricane to decrease in strength? A .staying over a warm body of water for a long time. b.increasing the number of large clouds. c.moving a continent d. moving toward tropical waters.

17. ## langugage arts

do you know anything about college

18. ## tech

what is the best strategy for studying for a test?

19. ## physics

A feather is dropped onto the surface of the moon. How far will the feather have fallen if it reaches the surface in 9.00 seconds? Given: g on moon = –1.63 meters/second

20. ## personal finance

As a college senior, Jessica was offered a new credit card that allowed her to take a 10% discount on the first month's purchases. She accepted the offer and made purchases that totaled \$156.19. How much did she owe after the discount was deducted from the

21. ## physics

an object is placed 10 cm from a concave spherical mirror whose radius of curvature is 12 cm. What is the distance of image a) 5cm b) 10 cm c)15cm d)20cm e)24cm

22. ## physics

an electron moves with constant speed at right angles to a uniform magnetic flux, if the flux density were doubled, the force on the electron would be A) unaffected B) reduced to one month C) halved D) doubled E) quadrupled

23. ## Pronoun Pratice

I have written a paragraph about credit cards using at least five different pronouns. Could you please look over it and let me know if you see any errors, if my pronoun use is correct and if the sentences are complete. If you have any input about how a

24. ## com220

can you help me paraphrase this: Obesity means an excess amount of body fat. No general agreement exists on the definition of obesity in children as it does adults. Most professionals use published guidelines based on the body mass index(BMI), or a

25. ## math

IN A CLASS OF 28 SIXTH GRADERS,ALL BUT ONE OF THE STUDENTS ARE 12 YEARS OLD.WHICH TWO DATA MEASUREMENTS ARE THE SAME FOR THE STUDENTS AGES?WHAT ARE THOSE MEASUREMENTS?

26. ## science

What are 4 natural disasters tsunami,volcano

27. ## science

the three lines of defense your body has against disease include all except A: physical and chemical defence's B: inflammation C: immune system D : scarring

28. ## tutor

can i be a tutor here

29. ## english

Which contains an error in punctuation? A) His hobbies include drawing, reading, and swimming. B) When Seth hit the home run, the crowd jumped to its feet and cheered. C) Irene fixed two dozen chocolate cupcakes, for her aunt, uncle, and cousins. D) Janice

30. ## science

do you know the planet rhyeme

31. ## Language

A cat cornered a mouse in a barn and was about to eat it. “Save me!” the mouse cried. “And someday I may save you!” The cat was haughty. “How can a tiny mouse ever save a cat?” she asked. “I may be tiny,” the mouse answered, “but I have

32. ## math

A recipe uses 3 cups of flour to make 48 cookies, how much flour is needed to make 72 cookies. create a proportion and solve=?

33. ## Math

A sum of a number and it's reciprocal is 2 1/30 (mixed fraction) determine the number? I have tried solving it with no luck. I get stuck on the part of completing the square. Please help me Thank you

34. ## Physics

A person pushes with a horizontal force of 25 N 4kg block, initially at rest on a horizontal table, a distance of 3m. The coefficient of kinetic friction between the block and table is 0.35. determine external work on the block-table system. the energy

35. ## Chemistry

Element L has an average atomic mass of 54.2488 amu and is composed of two isotopes. The first has a mass of 55.2036 amu and makes up 41.030% of a standard sample. What is the mass of the second isotope? I under how to get average atomic mass but not sure

36. ## chemistry

an ideal gas in a closed inflexible container has a pressure of 6 atm and a temperature of 27 degree celsius . What will be the new pressure of the gas of temperature is decreased to -73 degree celsius? a) 2 atm b) 3 atm c) 4atm d) 8atm e) 9atm plz teach

37. ## chemistry

an ideal gas in a closed inflexible container has a pressure of 6 atm and a temperature of 27 degree celsius . What will be the new pressure of the gas of temperature is decreased to -73 degree celsius? a) 2 atm b) 3 atm c) 4atm d) 8atm e) 9atm plz teach

38. ## CHEM

draw the structural formula for 1,3,5-trichlorocyclohexane

39. ## Math

Solve each equation. Round decimal answers to the nearest thousandth. 5(0.10)^x = 4(0.12)^x

40. ## English

we have to write and present a drama script about 'marginalization' for example homeless people are left out of the society. those with disabilities and those young people under 25 who care for their relatives. they are all positioned outside of the great

41. ## home work

what's a sentence for hasten

42. ## english essay

please, someone proofread my essay, and help me correct the grammar error i cant spot them. thank you. The war that shouldn't have go on What does a war hero receive when he return home from war? Is it a welcome home hug, a medal of honor, or perhaps a

43. ## Math

What is the distance between -10 and 10 on the number line? a) -20 b) -10 c) 0 d) 20**

44. ## Chemistry

0.2 moles of NaOH were added to a solution containing 0.4 moles of a weak acid and 0.4 moles of its conjugate base. After mixing, the pH of the solution was found to be 5.24. What is the pKa of the weak acid?

45. ## physics

What is the kinetic energy of a 61.8kg object going 11.5m/s?

46. ## World History

Which option accurately describes how religious practices of the Aztecs affected their culture? A)Aztec priests ensured good agricultural fortune by ritualistically killing captured enemies and slaves. B)Aztec priests ensured good agricultural fortune by

47. ## Government

do you know what Mk Ultra is , some of the celebrities are under that

48. ## Careers

is it weird on what i want to be when i grow up because i'm doing a PowerPoint And resenting it, will people make fun of me

49. ## Math

Steve earned \$27 mowing lawns. He earned \$12 less than that washing windows. He earned 3 times as much money walking dogs as he earned washing windows. How much money did Michael earn walking dogs?

50. ## math

Alyson works part time at a restaurant each week her work schedule changes. the number of hours she works each week is shown MAD 10,24,15,23,14,23,19,7,14,28,20,6,14,15

51. ## science

When are thunderstorms most likely to occur

52. ## math

4^2+6.5^2-3^3/3^2

53. ## history

Compare and contrast the Cherokee and Choctaw reactions when the United States government wanted them to move west

54. ## science

what are the top wild cats

55. ## life orientation

identify six symptoms of intrapersonal conflict in a person

56. ## science

which of the following factors would most likely cause a hurricane to decrease in strength. a. staying over a warm body of water for a long time. b. increasing the number of large clouds. c. moving over a continent. d. moving toward tropical waters i think

57. ## ss

which of the following was one of the influences of the Roman republic in the farming of the constitution. a. a centralized government that provides for more order b. elected representatives who are the voice of the people c. a judicial system that is

58. ## social

if the planet was to collapse where would everybody go. a.mars b.mercury c.venus d.jupiter

59. ## bobpursuley

can you help me with my question

hi everyone

61. ## science

where is Mount Everest located

62. ## math

what value of x makes this equation true? 4x -10=18 A2 B4 C7 D8

63. ## college

what is GPA for college

64. ## @ms sue

am i not suppose to give the answers out because everyone else does it.

65. ## science

what is the biggest planet mercury venus earth jupiter

66. ## i need help with my question

how do I find the cost, deadline acceptance information about college because I want to go to either yale or harvard?

67. ## langugage arts

what does mia mean by underestimate?

68. ## math

I don't know how to do percent of change

69. ## math

identify the part, whole, and percent in the following statement. find 15% of 750.

70. ## math

what is 100 x 200 x 300= can't find a calculator

71. ## science

how are earth and venus similar

72. ## Social Studies

What was one advantage that cities offered businesses and industrialists? A. clean air B. plentiful land C. ** efficient sewers D. transportation networks

73. ## science

what can form a cloud in the solar system

74. ## science

what will form a giant cloud that formed the solar system

75. ## science

which layer of the suns atmosphere are you looking at an image of the sun a.photosphere b.chromosphere* c.corona d.prominence

76. ## science

how is the suns galaxy a spiral galaxy and how does the milky way look I can't find any pictures

77. ## math

what are the equivalent fraction and decimal for-33 1/3 percent

78. ## science

what is a spiral galaxy?

79. ## math

is 56 over 23 an improper fraction

80. ## math

are 4/6 and 14/21 equivalent how do i show my work

81. ## langugage arts

a comparison and contrast essay uses the following?

82. ## math

on a given blueprint, 1in =16ft. if the dimensions of the bedrooms on the blueprint are 0.75 inches times 1.5 inches, what are its actual measurements? 16ft x 32ft 12ft x 24ft 16ft x 24ft 12ft x 32ft

83. ## math

18 to 100 what does that equal

84. ## science

where can I find good facts about Jupiter

85. ## Math

Do you know what dilations are?

86. ## math

what is a translation

87. ## math

how do I write a ratio in simplest form

88. ## science

is Pluto a planet, if not explain why

89. ## math

what is the ratio of the measures of side bc to side Rs in simplest form similar figures

91. ## math

write a translation rule= what is this

92. ## math

true or false every square root can be written as a whole number

93. ## math

what are nonterminating decimals

94. ## math

the estimate for square root 27

95. ## math

would I multiply 6 and 8 or divide when you're doing real numbers

96. ## math

if a number is not rational then it is?

97. ## history

which of the following was one way the constitution attempted to a reconcile a weakness of the articles of confederation.

98. ## Language arts

Which word is the closest in meaning to eloquent?

99. ## technology

what does it mean to calculate frequencies within a database