# Joshua

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

Name the point with the given coordinates (4,-2).

2. ## home economics

mention the types of disposal of fullness?

3. ## chemistry

Potential of a cell is 0.1776 volts Pb|Pb2+(??M)||Pb2+(1.0M)|Pb I know i have to use Nernst's equation .. i just have no clue how to attempt this :S

4. ## Chemistry

Calculate the pH of (1)0.150M KC2H3O2: (2)0.200M pyridine chloride, C5H5NHCl: and(3) 0.500M NaCl

5. ## chem

The dibasic compound B (pKb1 = 4.00, pKb2 = 8.00) was titrated with 1.00 M HCl. The initial solution of B was 0.100 M and had a volume of 100.0 mL. Find the pH at the following volumes of acid added and make a graph of pH versus Va; Va=0, 1, 5, 9, 10, 11,

6. ## Chem Uni. Urgent!!!

Have to find theoretical yield of recrystallization of acetanilide from water. 1 gram of crude product used (85% acetanilide, 14% Sodium chloride and 1% charcoal) I got 0.50 grams of purified product. With percent recovery of : (0.50g/1.00g)* 100% = 50%.

7. ## Science math

Suppose a laboratory has a 38 g sample of polonium-210. The half-life of polonium-210 is about 138 days. How many half-lives of polonium-210 occur in 1104 days? How much polonium is in the sample 1104 days later?

8. ## Chemistry

how many molecules of sulphuric acid is needed to neutralize 5ml of potassium bicarbonate (iv)acid when calcium is heated at temperature 200 calcius using nickel as catalyst

9. ## English

Which Of The Following Descriptions From ''The Mirror'' Is An Example Of Personification? A. The Mirror Is Silver And Exact. B. The Candles And Moon Are Liars. C.The Opposite Wall Is Pink With Speckles. D.A Women's Face Replaces Darkness. This Is From

10. ## Ancient Civilization

What is a mixture of sand, lime and water and used as lubricant to move stones in ancient egyptian civilization? Slurry is a nice word.

11. ## Chemistry

what is the lowest frequency photon that can ionize a hydrogen atom with excited state electron configuration 3s1

12. ## physics

A student, late for class, ran up some stairs between landings, which are 11.3 m apart. The student’s mass is 62 kg and it took 6.02 s to do the run. What is the average power that the student generated during the run?

13. ## Chemistry

A 100.0 g sample of water at 27.0°C is poured into a 77.4 g sample of water at 89.0°C. What will be the final temperature of the water?

14. ## Pre-Calculus

Find all of the fifth roots of 32i?

15. ## ancient civilization

what is a mummy shaped amulet that held farm tools.....it starts with the letter S? Thank you for using the Jiskha Homework Help Forum. It's interesting to note that this was a crossword puzzle word! Here's the answer: These statuettes would be placed in a

16. ## Calculus

I wanted to confirm that I solved these problems correctly (we had to convert the polar curves to Cartesian equations). 1.rcos(theta)=1 x=1 2.r=2*sin(theta)+2*cos(theta) r^2=2rsin(theta)+2rcos(theta) x^2+y^2=2y+2x (a little unsure what do next if this is

17. ## Science

A gun fires a shell at an angle of elevation of 30 degrees with a velocity of 2*10^3m/s. What is the horizontal and vertical component of the velocity? What is the range of the shell? how high will the ball rise

18. ## Physics

A circuit employs a silicon solar cell to detect flashes of light lasting 0.25 s. The smallest current the circuit can detect reliably is 0.32 μA . Assuming that all photons reaching the solar cell give their energy to a charge carrier, what is the

19. ## college

A train is heading due west from St. Louis. At noon, a plane flying horizontally due north at a fixed altitude of 4 miles passes directly over the train. When the train has traveled another mile, it is going 80 mph, and the plane has traveled another 5

20. ## Math

Sierra spent 2/3 of her earnings on clothes and 1/5 on school supplies. She saved the rest. What fraction of her earnings did she save?

21. ## Pysics

A wooden bucket ﬁlled with water has a mass of 59 kg and is attached to a rope that is wound around a cylinder with a radius of 0.071 m. A crank with a turning radius of 0.29 m is attached to the end of the cylinder. What minimum force directed

22. ## physics

a jet airliner moving initially at 3..00X10^2 mi/h due east enters a region where the wind is blowing 1.0 x 10^2 mi/h in a direction 30 degrees north of east. A) find the components of the velocity of the jet airliner relative to the air. b) find the

23. ## ss

the aztec capital of tenochtitlan stood on the present-day A.Los Angeles B.Panama City C.Mexico D.Tikal

24. ## Science

why would a piece of wood float on water and sink in methylated spirit

25. ## Physics 221

An object starts from rest at the origin and moves along the x axis with a constant acceleration of 4m/s^2. Its average velocity as it goes from x=2m to x=8m is: A. 1m/s B. 2m/s C. 3m/s D. 5m/s E. 6m/s An object is released from rest and falls a distance H

26. ## Further maths

The 7th term of an A.p is 20 and the 13th term is 38 find the ,1,70thterm ,2,11thterm

27. ## Physics

Two identical loudspeakers are 2 m apart. A person stands 4.6 m from one speaker and 3.4 m from the other. What is the lowest frequency at which destructive interference will occur at this point?

28. ## Further math

The sum of the 3rd and 7th term of an AP is 38 and the 9th term is 37. Find the AP.

29. ## English arts 1 Nouns

Aaron plans to attend college once he completes this course workbook. im suppose to identify the nouns in the sentence the nouns are Aaron,college,workbook right? im debating on course idk? help lol

30. ## PHYSICS

on a partime job you are asked to bring a cylindrical iron rod of legnth 85.8 cm and diameter 2.85 cm from a storage room to a machinist. will you need a cart? (to answer calculate the weight of the rod.)

31. ## Physics

A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 3.00 m/s, and her takeoff point is 1.10 m above the pool. (a) How long are her feet in the air? s (b) What is her highest point above the

32. ## algebra

Two cars are driving toward each other from opposite directions. If one is driving 55 mph, the other is driving 60 mph and the cars are 500 miles apart, how long will it be before they pass each other? Round to the nearest tenth of an hour

33. ## Phyics

A Rock Is Thrown Vertically upward with a speed of 12m/s. Exactly 1.00s later a ball is thrown up vertically along the same path with a speed of 18m/s. At what time will they strike each other? so far I got this but it does not seem to be working out for

Adela borrowed \$10,500 at 12% ordinary interest for 170 days. After 40 days, she made a partial payment of \$3,000. After another 80 days, Adela made a second partial payment of \$2,000. What is the final amount due on the loan?

35. ## English

to marguerite-continued by matthew arnold poem yes in the sea of life enisled,with echoing straits between us thrown,dotting the shoreless watery wild,we mortals live alone.the islands feel the enclasping flow,and then their endless bounds they know.but

36. ## Arithmetic series

Suppose you are given the arithmetic sequence 3,6,9,...,99.What is the sum of the terms of this sequence?

37. ## English

can someone who is knowledgeable in english literature please check my answers thank you. 1.)which of the following phrases from ''the rear-guard'' is an oxymoron? a.''blackening wound'' b.''stinking place'' c.''rosy gloom'' d.''unanswering heap'' i chose

38. ## Physics

A 95 kg halfback makes a turn on the football field. The halfback sweeps out a path that is a portion of a circle with a radius og 12 meters. The halfback makes a quarter of a turn around the circle in 2.1 seconds. Determine the speed, acceleration and net

39. ## Math

A computer store buys some merchandise with a list price of \$3,000. If the wholesaler offers trade discount rates of 40/25/10, find the trade discount.

40. ## English

1.)The Narrator's Attitude In ''The Girl Who Wouldn't Talk '' When She Begins To Antagonize The Quiet Girl Is That The Quiet Girl A. Is Deliberately Trying To Make The Girl Mad. B. Needs A Companion To Talk To. C.Is Not Very Intelligent. D.Is Weak And

41. ## Physics

An infinite thread of charge density lamda lies along Z axis. The potential difference between the points A(4,3,4) and B (3,4,0)is?

42. ## ENGLISH

Which Of The Following Lines Best Demonstrates The Tone Of The Nymph's Reply To The Shepherd By Sir Walter Raleigh? a.the flowers do fade and wanton fields/to wayward winter reckoning yields. b.then these delights my mind might move/to live with thee and

43. ## English

1.) In ''Game'' Donald Bartheleme Is Satirizing All Of The Following Except A .Nature B.Materialism. C.Politics D.Violence This Is From The Story Game By Donald Bartheleme I Chose C But I Think It Can Also Be A

44. ## English

london by william blake poem i wander through each chartered street, near where the chartered thames does flow, and mark in every face i meet marks of weakness,marks of woe.in every cry of every man,inevery infant's cry of fear,in every voice,in very

45. ## Math

If 7 1/4 boxes of parts weigh a total of 68 7/8 pounds, what does one box of parts weigh?

46. ## Math

If there are 600 people in a concert audience, 3/10 are male and 5/6 are older than 10 years of age,how many people in the audience are female

47. ## ENGLISH (ESSAY)

ESSAY ON THE TOPIC THE HARMATTAN

48. ## English

can someone please check my answers 1.what is the best way to figure out a poem's theme? a.look for a line in which the poet states the theme directly. b.infer the theme from details,images,and symbols. c.analyze the rhyme scheme and meter of the poem.

49. ## math

Manday read that the arm of the Statue of Liberty is 42 ft long. She would like to know how long the Statue of Liberty’s nose is. How would you advise her to proceed?

50. ## chemistry

Match the correct mole ratio to the substances in the reactions below. carbon monoxide to iron in the reaction: Fe2O3 + CO ==> Fe + CO2 water to manganeese(II) chloride in the reaction: HCl + MnO2 ==> H2O + MnCl2 + Cl2 sodium to oxygen in the reaction: Na

51. ## Math

figure RSTU is a rectangle. if m of angle SUT = 3x + 6 and m of angle RUS = 5x - 4, find m of angle SUT

52. ## Algebra

You earn \$250 per month from your part-time job. You are in a kayaking club that costs \$20 per month, and you save at least \$100 each month. Write and solve an inequality to find the possible amounts you have left to spend each month.Can someone please

53. ## math

if 4.5 pounds of cherries cost \$10, what is the unit price per pound

54. ## physics

A motorcycle (mass of cycle plus rider = 3.0 102 kg) is traveling at a steady speed of 20 m/s. The force of air resistance acting on the cycle and rider is 1.8 102 N. Find the power necessary to sustain this speed under the following conditions. (a) the

55. ## math

A snail climbs a wall that is 16 feet high. Each day the snail climbs 5 feet, but each night it slips back down 3 feet. How many days will it take for the snail to get to the top of the wall

56. ## Math

The wholesale cost of a desk is \$370. The original markup was 20% based on selling price. Find the final sale price after the following series of price changes: a markup of 18% and a markdown of 47%. (Round each intermediate selling price to the nearest

57. ## Math

Find the markup on a delivery van that sells for \$36,002.98 but costs \$31,399.99. any help is appreciated!

58. ## English

to marguerite-continued by matthew arnold poem yes in the sea of life enisled,with echoing straits between us thrown,dotting the shoreless watery wild,we mortals live alone.the islands feel the enclasping flow,and then their endless bounds they know.but

59. ## English

1.)my first question is which of the quotes from henry's speech represents an appeal to the head? a. '' we are apt to shut our eyes against a painful truth, and listen to the song of that siren, till she transforms us into beasts.'' b.''has great Britain

60. ## Physics mechanics

Two identical 17.7-kg balls, each 23.9 cm in diameter, are suspended by two 35.0-cm wires as shown in the figure (Figure 1) . The entire apparatus is supported by a single 18.0-cm wire, and the surfaces of the balls are perfectly smooth. what is the

61. ## math

A merchant purchased a number of coats, each at the same price, for a total of \$720. He sold them at \$40 each, thus realizing a profit equal to his cost of 8 coats. How many did he buy

62. ## science

The living plants that are most similar to the first plants to bear gametangia are the _____. a) charophyceans b) seedless vascular plants c) angiosperms d) gymnosperms e) bryophytes

63. ## math

What is the greatest amount of money you could leave for a tip if... 1.no paper money is left 2.with the coins tat are left, change cannot be ;made for a quarter or for a dollar.

64. ## Chemistry

What is the concentration of a monoprotic weak Acid if its pH is 5.50 and its Ka= 5.7 x 10^-10?

65. ## Math

Find the trade discount for an order of merchandise with a list price of \$8,000 less trade discount rates of 30/20/15. (Find the single equivalent discount first.)

66. ## English

can someone please check my answers 1.)what is the best way to figure out a poem's theme? a.look for a line in which the poet states the theme directly b.infer the theme from details,images,and symbols c.analyze the rhyme scheme and meter of the poem d.use

The figure below shows two points in an E-field: Point 1 is at (X1,Y1) = (3,4) in m, and Point 2 is at (X2,Y2) = (12,9) in m. The Electric Field is constant, with a magnitude of 68 V/m, and is directed parallel to the +X-axis. The potential at point 2 is

68. ## History

What aspects of european society did the church dominate from 1100 to 1300?

LooLoo Clothing Emporium sells scarves for \$29.58. If the cost per scarf is \$9.53, what is the amount of the markup?

70. ## Math

Zahir Antiques purchases merchandise having an invoice price of \$12,900. The terms of sale are 3/15, n/30. What is the cash discount if the bill is paid by the 15th day? I have no idea how to do this:(

71. ## Math

A customer just paid \$29,540 for a car. If the percent markup based on cost is 111%, what was the cost?

72. ## Math

Tan's Bakery buys some goods with a list price of \$5,900. The supplier extends a 45% trade discount rate. What is the trade discount?

73. ## Ancient civilization

What is a translucent stone used in floor slabs in ancient egyptian civilization? If you'll go to http://www.google.com and enter translucent stone egyptian, you'll find the answer. =) http://touregypt.net/magazine/mag06012001/magf5.htm

74. ## English

can someone please check my answers 1.what is the best way to figure out a poem's theme? a.look for a line in which the poet states the theme directly. b.infer the theme from details,images,and symbols. c.analyze the rhyme scheme and meter of the poem.

75. ## Math

Brian is self-employed. If he earns \$2,040 monthly, what will be his total social security and Medicare taxes for the first quarter? For self-employed persons, social security tax is 12.4% of wages up to \$117,000, and Medicare tax is 2.9% of all wages.

76. ## Math

If a negative number is raised to an even exponent, what's the sign of the answer? How do you know? d. If a negative number is raised to an odd exponent, what's the sign of the answer? How do you know?

77. ## Physics

A steel ball is dropped onto a hard floor from a height of 1.80 m and rebounds to a height of 1.64 m. (Assume that the positive direction is upward.) (a) Calculate its velocity just before it strikes the floor. m/s (b) Calculate its velocity just after it

78. ## Statistics and Probability

All printed circuit boards (PCB) that are manufactured at a certain plant are inspected. An analysis of the company’s record shows that 22% of all PCBs are flawed in some way. Of those that are flawed, 84% are reparable but the rest must be discarded. If

79. ## Statistics

The Internal Revenue Service is studying contributions to charity. The mean calculated from a random sample of 36 returns is \$150. Assume that the population standard deviation is known and equal to \$20. Construct a 98 percent confidence interval for the

80. ## English-metaphors

Is this quote a metaphor? "That's a bright direction, there's a glowing there." In context it seems like a metaphor since the direction she is looking in is not actually bright or glowing. there was a lot of text for the question but I thought it e too

81. ## Algebra 1

Emmanuel was speaking with a friend from another country. His friend told him that the speed limit on most highways is 100 kilometers per hour in her country. This speed sounded fast to Emmanuel. Approximately what speed is this in miles per hour? Round to

82. ## algebra

A train left Podunk and traveled north at 75km/h. Two hours later, another train left Podunk and traveled in the same direction at 100 km/h. How many hours had the first train travelee when the second overtook it?

83. ## Algebra

Dylan has 765 cards in his baseball card collection. He sells 153 of the cards. What is the percent of decrease in the number of cards in the collection?

84. ## Physics

A horizontal massless beam of length 1 m is supported at two points. One fulcrum is at one end of the beam, point "O", and the other at the 0.60m point "P". Two equal weights are placed on the beam, one at O and one at point Q at distance x from O. Find

85. ## Physics

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far

86. ## Math

Stewart Software purchases some merchandise with an invoice price of \$26,900, and terms of sale of 2/20, n/45. What is the net amount due on the order if a partial payment of \$8,700 is made on the 20th day?

87. ## math

Cynthia has a bag of jellybeans. There are two red jellybeans, one yellow jellybean, and two black jellybeans in her bag. Cynthia grabs two jellybeans and gives them to her friend, Pedro, and he eats them. What is the probability that she gives him two red

88. ## Physics

The temperature of 2.0 g of helium is increased at constant volume by ΔT. What mass of oxygen can have its temperature increased by the same amount at constant volume using the same amount of heat? I know for constant volume I should use the equation:

89. ## math

A student is attempting to factor a polynomial. Sample mathematical work is shown below. Which statement best applies to the sample mathematical work? Given 3x + 6, the factors of the first term are 3 and x, and the factors of the second term are 1, 2, 3,

90. ## English

Combine each pair of sentences use and,but,or, to join the two predicates The total suprised us. The total pleased us.

91. ## Physics - URGENT

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far

92. ## Math

What are the social security and Medicare taxes due on gross earnings of \$60,400 per year for Tricia Marvel, a self-employed commercial artist? Round dollars to the nearest cent.

93. ## MATH

A G.PIS SUCH THAT THE 3RD TERM IS 9TIMES THE FIRST TERM,WHILE THE 2ND TERM IS ONE TWENTY FOURTH OF THE 5TH TERM.FIND ITS 4TH TERM

94. ## math

eva wants to make two pieces of pottery. She needs 3/5 pound of clay for one piece and 7/10 pound of clay for the other piece. She has three bags of clay that weigh 4/5 pound a piece. How many bags of clay will eva need? How many pounds of clay will she

95. ## College Physics

1. In a region of two-dimensional space, there are three fixed charges: +1 mC at (0, 0), −2 mC at (18 mm, -3 mm), and +3 mC at (-8 mm, 12 mm). What is the net force on the −2-mC charge? Find the magnitude and direction (counterclockwise from the

96. ## chemistry

85.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar? Specific heat of water = 4.18 Specific heat of steel = 0.452 My answer

97. ## Pysics

A mother and daughter are on a seesaw in the park. How far from the center must the 127 lb mother sit in order to balance the 49 lb daughter sitting 7 ft from the center?

98. ## Math

The owner of a small business is aiming to increase sales by ₱1000 weekly. If this condition is met, how much should be the sales on the first week to reach exactly ₱75 000 worth of sales in ten weeks? Type your answer without the peso sign.