Pete

Popular questions and responses by Pete
  1. Math

    3) Find the value of m for which (i) (5^m×5^3×5^(-2))/5^(-5) =5^12 (ii) (2/9)^3×(2/9)^(-6)=(2/9)^(2m-1)

    asked on June 28, 2020
  2. physics

    On Mars, the acceleration due to gravity is 3.71 m/s2. How far would a rock fall in 3 s if you dropped it on Mars?

    asked on January 30, 2013
  3. Algebra

    If 7 cartons of apple juice and 2 cartons of grapefruit juice cost £6.15 and 5 cartons of apple juice and 8 cartons of gratefruit juice cost £9.19 calculate the cost of 2 cartons of apple juice and 5 grapefruit juice Using Algebraic calculation

    asked on April 14, 2020
  4. Chemistry

    Topic: Sublimation and Fusion How much heat (in kJ) is required to warm 13.0 g of ice, initially at -14.0 C, to steam at 112.0 °C? The heat capacity of ice is 2.09 J/g⋅°C and that of steam is 2.01 J/g⋅°C. Any help on how to start this is really

    asked on March 29, 2009
  5. Geometry

    TAN (?) = 15 What is the missing value to the nearest hundredth? My guess is 86.19. :)

    asked on May 14, 2016
  6. Physics(friction)

    Find the coefficient of friction between a 73kg cubic box measuring 3m and a hardwood floor 16m long and 20m wide if a total of 236N is required to start the box moving.

    asked on November 11, 2014
  7. Financial maths

    Tara is saving for an overseas trip. Her taxable income is usually about $20 000. She estimates that she will need $5000 for the trip, so she is going to do some extra work to raise the money. How much extra will she need to earn in order to have $5000

    asked on February 25, 2017
  8. English

    The teacher will show the students a picture of a bess beetle with all the parts labeled. Does bess need to be Bess? I used bess beetle through my whole paper not sure when to capitalization bess.

    asked on April 13, 2011
  9. Maths

    Ravi decides to Choose a 5 digit passcode from the Following 7 characters 1. 9. 6. 7. R. P # No digits are used twice A ) how many combinations of 5 digits are there ? B) Probability that The one he chooses will start with a R and end in P

    asked on April 19, 2020
  10. physics

    Heather and Jerry are standing on a bridge 51 m above a river. Heather throws a rock straight down with a speed of 17 m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance. How much time

    asked on December 21, 2016
  11. Chem

    What is the major(s) products of 2-methyl-1,3-cyclopentadiene with the addition of HBr(conc) at 40C ?

    asked on March 29, 2016
  12. pre-calc

    jessica is standing 2 miles from the center of the base of pikes peak and looking at the summit of the mountain which is 1.4 miles from the base, what angle of elevation is jessica looking at the summit of the mountain?

    asked on August 16, 2012
  13. Physics

    Find the current in the 10.0 resistor in the drawing (V1 = 20.0 V and R1 = 15.0 )..?

    asked on January 22, 2012
  14. PS

    Does it look to you like Aristotle ever performed any actual experiments with falling objects? Explain your answer, based upon your observations from this lab .

    asked on June 7, 2011
  15. physical science

    A ball was dropped off a cliff and took 3.09 s to fall to the water below. Neglecting air resistance, how fast (in m/s) was the ball moving just as it hit the water

    asked on June 7, 2011
  16. history

    what is the authors view of the intergrity and effectiveness of those involved in the republican governments in the Southern states? Is the view of the "carpetbaggers" and "scalawags" positive, negative, or neutral?

    asked on August 18, 2008
  17. Algebra

    Y=X2+bx+c (the 2 means squared) Y = 16 when x= 0 Y= 0 when x=-2 Find the values of b & c

    asked on April 14, 2020
  18. Writting skills

    Q-----An appositive is a noun that is placed after another noun in order to tell more about it and its usually set off with commas.

    asked on October 3, 2014
  19. Writing

    13. Which of the following is a complex sentence? A. I would like to visit the Kinshasa, but I understand the city is unsafe for foreigners. B. As Jake was reading the letter from June yet again, the flight attendant coughed gently to get his attention. C.

    asked on May 21, 2014
  20. fire science

    A compartment measures 14 feet wide, 12 feet long and 8 feet high, lined with ½ inch sheetrock and has a standard 36 inch by 80 inch door. What HRR is required for flashover?

    asked on May 30, 2013
  21. Physics

    A fire helicopter carries a 555 kg empty water bucket at the end of a cable 20.9 m long. As the aircraft flies back from a fire at a constant speed of 38.4 m/s, the cable makes an angle of 38.3° with respect to the vertical. A) After filling the bucket

    asked on September 28, 2011
  22. Math

    Mr. Smith bought shoes for $ 120 and a suit for $ 340. Find the total cost including tax if the tax rate is 5.5%. (a)$485.30 (b)$48.53 (c)$ 358.70 (d)$460 (e)$406

    asked on September 15, 2011
  23. P.S.

    A ball was dropped off a cliff and took 3.09 s to fall to the water below. Neglecting air resistance, how far (in meters) did it fall? (How far is it down to the water?)

    asked on June 7, 2011
  24. English

    I went to parent-teacher conferences, and it was not what I expected. I have learned that at parent-teacher conferences not all the parents show up. Are those sentences correct?

    asked on April 2, 2011
  25. English

    I made up a game for them to play and made a mental note to keep extra activities on hand for when my class finishes earlier than expected. Is this correct? My supervising teacher informed me that I speak well in class. My supervising teacher informed me

    asked on February 15, 2011
  26. Physics

    The speed of longitudinal waves, called P waves, is 7274.0 m/s. Transverse waves, called S waves, travel at a slower 3803.0 m/s. A seismograph records the two waves from a distant earthquake. If the S wave arrives 4.47 min after the P wave, how far away

    asked on November 23, 2010
  27. Chemistry

    At a certain temperature, the pH of a neutral solution is 7.77. What is the value of Kw at that temperature?

    asked on November 22, 2010
  28. physics

    a 0.180 kg ball falls 2.5m. How much work does the force of gravity do on the ball?

    asked on November 16, 2010
  29. English

    A teacher has so many things that they are responsible for and for that reason; it is beneficial for everyone to have as much help as possible. Is this sentence correct or should it be a comma after reason?

    asked on March 29, 2011
  30. Chemistry...verification

    2 equation 2CoI3 + 3 K2S= Co2S3 + 6KI 2 moles of Cobalt (III) iodide + 3 moles of Potassium sulfide = cobalt (III) sulfide + 6moles of Potassium Iodide assuming all that can react will react, how many grams of cobalt (iii) sulfide will form when 1318.89

    asked on October 10, 2010
  31. Calculus

    A fence 6 feet tall runs parallel to a tall building at a distance of 7 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?

    asked on July 13, 2010
  32. Grammar

    Is the word "Scary" - 1. Word with short vowel, or 2. Word with long vowel A, E.

    asked on November 5, 2009
  33. Algebra

    Solve 3(2x-3)

    asked on September 28, 2009
  34. Spanish

    1. ¿Qué es el gerundio de "llamar"? 2. ¿Qué es el gerundio de "beber"? 3. ¿Qué es el gerundio de "dividir"? 4. ¿Qué es el infinitivo de "mirar"?

    asked on May 25, 2009
  35. Mass Spectrometry

    I don't have a clue where to start with this problem: Carbon has two stable isotopes, 12/6C and 13/6C, and fluorine has only one stable isotope, 19/9F. How many peaks would you observe in the mass spectrum of the positive ion of CF4+? Assume that the ion

    asked on June 11, 2006
  36. physics

    Santa's sleigh currently runs at 203mph, but he needs it to reach 400mph with all the packages he has to deliver. If Santa is delivering presents at an altitude of 5,813.6ft, with the same drag and weight of a 2019 Challenger SRT hellcat redeye, how much

    asked on December 3, 2019
  37. Math

    your dog's water bowl is 3/4 full. after taking a drink, the water bowl is 1/3 full. what fraction of the bowl did your dog drink?

    asked on September 11, 2018
  38. Algebra

    The perimeter of a rhombus is 80 centimeters. The lengths of its diagonals are in the ratio 3:4. Find the length of each diagonal.

    asked on January 30, 2017
  39. Electronics

    How long does it take for a 10 motivated capacitor with a 1 megaohm resistor in series to charge to 67% (1 time constant) of the applied voltage?

    asked on November 25, 2016
  40. Statistics

    Four cards are chosen at random. What is the probability that at least 2 are J's? How is this problem computed? Using Combinations or permutations?

    asked on October 9, 2016
  41. math

    what size circumference would fit in a rectangle 11 in. x 16 in.

    asked on February 20, 2016
  42. physscience 9th grade

    list the steps to analyzing a graph from a slope mentality.

    asked on January 10, 2016
  43. biology

    A toxin from a poisonous mushroom has been identified as a hydrophobic weak acid. It somehow can find its way to the inner membrane of mitochondria where it gets protonated on the outer surface of the membrane but deprotonated on the inner surface of the

    asked on April 30, 2015
  44. biology

    A toxin from a poisonous mushroom has been identified as a hydrophobic weak acid. It somehow can find its way to the inner membrane of mitochondria where it gets protonated on the outer surface of the membrane but deprotonated on the inner surface of the

    asked on April 29, 2015
  45. Chemistry

    If E Cu+2 had been chosen as the standard reference electrode and had been assigned a potential of 0.00 V, what would the reduction potential of the hydrogen electrode be relative to it?

    asked on April 16, 2015
  46. Geology

    The Sun Is 150 Million Kilometers From The Earth, And The Earth's Equatorial Radius Is 6378 Km. How Much Would You Expect The Sun's Intensity To Drop, Based Only On This Additional Distance?

    asked on December 16, 2014
  47. math

    what is the maximum speed of a stationary bike set at a constant resistance rate of 2 kilopounds? how far could you travel in 12 minutes and 54 seconds?

    asked on October 30, 2014
  48. English

    What is the subject and subject complements of this sentence "Lack of water and wood remained a problem for Europeans." Is it lack and problem

    asked on September 15, 2014
  49. physics

    The edges of a shoebox are measured to be 11.9 cm, 17.3 cm, and 29 cm. Determine the volume of the box retaining the proper number of significant figures in your answer.

    asked on September 3, 2014
  50. statistics

    Between 50 and 80 people are hired on a ship. 75% speak English only and 25% speak German only. What is the mean number of people that speak English only? Can this even be calculated?

    asked on June 3, 2014
  51. physics

    Two hockey players strike a puck of mass 0.159 kg with their sticks simultaneously, exerting forces of 1.30 103 N, directed west, and 9.90 102 N, directed 30.0° east of north. Find the instantaneous acceleration of the puck.

    asked on February 13, 2014
  52. chemistry

    Your x-ray lab has a monochromator consisting of a single crystal of nickel cut so that the plane lies in the cube face. At what angle (in degrees) should the cube face be tilted with respect to the incident beam in order to select radiation with a

    asked on October 30, 2013
  53. math

    Mr Ernst leaves home at noon, traveling at 50 mph. His loving wife leaves at 1 pm with a briefcase that Mr. Ernst forgot. How fast must his wife drive to catch him by 5 pm?

    asked on September 16, 2013
  54. Math

    Whats the monthly principal and interest payment for a mortgage with a financed amount of $81,000 at 9% for 25 years?

    asked on July 17, 2013
  55. Physics

    Calculate the resistance of 80 metres of copper wire, with a c.s.a. of 0.5mm2, given its resistivity of 1.72 x 10^-6 ohms per metre, Note, the area of the wire must be expressed as a portion of its base unit of measurement, which is the square metre.

    asked on June 10, 2013
  56. Physics

    Suppose that you are using a multimeter on the OHMS scale to test a capacitor and the meter reads zero. What condition of the capacitor does this indicate?

    asked on June 10, 2013
  57. Physics

    A fuel has heat of combustion equal to 30 kJ / g. How much energy is released when 5 kilograms are oxidized?

    asked on May 30, 2013
  58. Physics

    A compartment measures 3.5 meters by 5.5 meters and is 3 meters high. A fire raises the temperature from 68of to 1500 of. If the starting pressure was 1 atmosphere, what volume is present at the elevated temperature assuming the compartment has openings to

    asked on May 30, 2013
  59. Physics

    A compartment measures 3 meters by 5 meters and is 2.8 meters high. A fire raises the temperature from 20oC to 1000 oC. If the starting pressure was 1 atmosphere, what pressure is present at the elevated temperature assuming the compartment remains closed?

    asked on May 30, 2013
  60. Math

    Sales tax an item that cost $3.00 + tax rate is 6%

    asked on May 3, 2013
  61. Math

    Find the sum of all integers c, such that for some integers a and b satisfying a

    asked on April 30, 2013
  62. Algrbra

    A certain paperback sells for $12. The author is paid royalties of 11% on the first 10,000 copies sold, 12.5% on the next 5000 copies, and 18% on any additional copies. Find a piecewise-defined function R that specifies the total royalties if x copies are

    asked on October 24, 2012
  63. math

    Robert planted pumpkins to sell. Their garden has 5 sides. 5 feet 8 inches, 7 feet 8 inches, 10 feet 3 inches, 7 feet 5 inches, 7 feet 11 inches. What is the perimeter of their garden?

    asked on September 23, 2012
  64. Chemistry

    Calculate the velocity of a rock that weighs 48 grams dropped from a height of 355 meters, gravity 9.8

    asked on August 24, 2012
  65. nuclear

    Calculate the age of a plant sample that shows about one-eighth of the carbon 14 of a living sample. The half-life of carbon-14 is about 5760 a. Help please...

    asked on May 28, 2012
  66. Math

    heather has $2.50 in nickels, dimes, and quarters. she has 3 times as many nickels as dimes and four times as many quaters as dimes

    asked on February 22, 2012
  67. human religions

    Can you provide any examples of how some religions combine their religious practices?

    asked on January 10, 2012
  68. human religions

    what effect do you think the “combining of religious practices” will have on the future of organized religion?

    asked on January 10, 2012
  69. physics

    A toboggan of mass 8.4 is moving horizontally at 18 . As it passes under a tree, 18 of snow drop onto it. We're covering Momentum and collisions, and I have no idea where to start here.

    asked on December 1, 2011
  70. physics

    A toboggan of mass 8.4 is moving horizontally at 18 . As it passes under a tree, 18 of snow drop onto it. We're covering Momentum and collisions, and I have no idea where to start here.

    asked on December 1, 2011
  71. Chemistry

    Balance: NH3 + [Cd(NH3)4] > Cd2+ + NH4+

    asked on October 12, 2011
  72. probabilities

    The proportion of red marbels in a large jar of red and black marbels is 0.4 and the percentage of damaged red and black marbels is 0.7. What is the probability of selecting randomly a black and damaged marbel? If you randomly select three marbels, what is

    asked on October 3, 2011
  73. Psychology

    Like the popular belief that older adults do poorer in schools than their younger counterparts, the midlife crisis___________________. 1.is more accurate when describing an older population. 2.is more accurate when describing adolescents. 3.occurs more

    asked on July 31, 2011
  74. physical science

    If a ball is thrown straight up at a speed of 27.8 m/s, how long (in seconds) will it continue to rise before it starts to fall back down

    asked on June 7, 2011
  75. physics

    if a van has a package in the back and is traveling 55 miles and hour is in a head on collision with a vehicle also traveling 55 miles an hour how fast is the package in the back of the van going to hit the driver in the back

    asked on May 11, 2011
  76. computer science

    to write a report on Object-Oriented Systems. The report should focus on the following systems including definition, applications, and advantages and disadvantages. • Object-oriented Systems • Object-oriented database • Object-oriented data modeling

    asked on April 26, 2011
  77. science

    what are some positve things about cane toads

    asked on April 16, 2011
  78. English

    Will write a paragraph of what they think is the best defense mechanism of the Bess beetle and why. Is this sentece correct or should Bess be lower case?

    asked on April 10, 2011
  79. English

    I did not realize how important it was to collaborate with the staff at school, such as janitors, until I need them in my room. Teachers have so many responsibilities, and for that reason, it is beneficial for evryone to have as much help as possible. Are

    asked on April 1, 2011
  80. English

    It took me a while to meet my communication goals, because Mrs. step was not their for a while. Does this sentence need the comma before because?

    asked on April 1, 2011
  81. Critical Thinking

    Which of the following illustrates the key difference between subjective and non-subjective issues?

    asked on March 27, 2011
  82. English

    The students are not so talkative in their new seats, but, they still work well in groups. The students are not so talkative in their new seats, but they still work well in groups. Which way is correct?

    asked on March 3, 2011
  83. English

    I wanted to clean the desk, because there was no room for anything on it. I, also, wanted to clean it because when papers where put down on the desk you could not find them later that day. Are these two sentences correct? Do you also put commas saying I,

    asked on March 3, 2011
  84. English

    I learned that handling behavior in a science lab is easy to do as long as the ground rules have been laid out for the students. Is this sentence correct?

    asked on February 27, 2011
  85. English

    After we did two types of sand together, he did the rest on his own. or After we had done two types of sand together, he did the rest on his own. Which one is correct?

    asked on February 27, 2011
  86. English

    I need the vocab word for the following definiton: Unrealistic devices or procedures that the audience agrees to accept (ex: aside).

    asked on February 27, 2011
  87. english

    in tragedy vocabulary. I need the word for the following definition. a device where by the audience or reader understands more of a situation or of what is being said than a character is aware of.

    asked on February 27, 2011
  88. physics

    How long would a 150 W lightbulb have to glow to produce the same amount of energy expended by Georgie? Answer in units of s.

    asked on February 23, 2011
  89. physics

    A lawn roller is rolled across a lawn by a force of 109 N along the direction of the handle, which is 24.2 above the horizontal. If the lawn roller develops 66.1 W of power for 64 s, what distance is the roller pushed? Answer in units of m.

    asked on February 23, 2011
  90. physics

    A lawn roller is rolled across a lawn by a force of 109 N along the direction of the handle, which is 24.2 above the horizontal. If the lawn roller develops 66.1 W of power for 64 s, what distance is the roller pushed? Answer in units of m.

    asked on February 23, 2011
  91. physics

    A lawn roller is rolled across a lawn by a force of 109 N along the direction of the handle, which is 24.2 above the horizontal. If the lawn roller develops 66.1 W of power for 64 s, what distance is the roller pushed? Answer in units of m.

    asked on February 23, 2011
  92. Math

    Solve the system of equation. x+y+z=6 3x-2y=4z=9 x-y-z=0 ________

    asked on February 22, 2011
  93. English

    The learner will distribute color coded index cards with the three main types of rocks written on them to be used in class question and answer session. Is this sentence correct or does it need a comma?

    asked on February 20, 2011
  94. English

    She also told me that I need to write as well as I speak, and I agree with her. She also told me that I needed to write as well as I spoke, and I agree with her. Which on is correct? This is for a paper and it is supposed to be in past tense.

    asked on February 15, 2011
  95. physics

    A simple pendulum has a length of 1.5 m and is pulled a distance y = 0.24 m to one side and then released. (Assume small angle.) What is the speed of the pendulum when it passes through the lowest point on its trajectory?

    asked on December 10, 2010
  96. chem

    What is the empirical formula for Ba(NO3)2

    asked on December 10, 2010
  97. Physics

    For a certain transverse wave, the distance between two successive crests is 1.89 m, and 5 crests pass a given point along the direction of travel every 12.84 s. Calculate the wave speed.

    asked on November 22, 2010
  98. Physics

    A microphone has an area of 6.7 cm2. It receives during a 4.62 s time period a sound energy of 2.5x10-11 J. What is the intensity of the sound?

    asked on November 22, 2010
  99. Physics

    A wave with frequency 12.2Hz and amplitude 47.7 mm moves in the positive x direction with a speed of 8.9 m/s. What is the waves wavelength?

    asked on November 22, 2010
  100. Chemistry

    What is the H+ concentration for an aqueous solution with pOH = 4.13 at 25 ?

    asked on November 22, 2010

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