1. Earth's Dynamic Atmosphere

    Variations in air pressure are shown as _______ on surface weather maps. A. geostrophic B. barograph C. topographical D. isobars my naswer is d.

    asked by Prisila on December 26, 2017
  2. life orientation

    Evaluate he extent to which peer pressure can impact negativity on intrapersonal conflict.give two well explained examples to support answer

    asked by malompo on February 17, 2015
  3. Advertising question, please help!!!!!!!!!!!!!!

    How can I prove that advertising GREATLY influences in shaping consumer's purchase decision? So far, I have peer pressure, discounts...I'm not sure if they're even strong ideas :?

    asked by Mark on September 7, 2007
  4. science

    1. Boyle’s law states that if you squeeze a fixed amount of a gas into a smaller volume, the pressure will increase. Explain why in your own words.

    asked by alex on March 1, 2013
  5. science

    a cup of coffee, a 10 gallon aquarium, and a bottle of ginger ale were on the same table. on which container was there the greatest amount of air pressure

    asked by Samantha on September 30, 2008
  6. science

    1. Boyle’s law states that if you squeeze a fixed amount of a gas into a smaller volume, the pressure will increase. Explain why in your own words.

    asked by ricardo on February 28, 2013
  7. science

    : how much work is done by 0.020 meters squared of gas if its pressure increases by 2.0 multiplied by 10 to the 5th power Pa and the volume remains constant ?

    asked by Chad on February 27, 2013
  8. physics

    Find the total heat capacity of a 2.0 mol diamtomic ideal gas at constant pressure if the molecules can rotate and vibrate.

    asked by Anonymous on June 16, 2016
  9. science

    High pressure systems are regions where air moves downward usually a few or no clouds form in this condition. Where r strongest winds found/

    asked by dorothy morlan on October 28, 2012
  10. College Chemistry

    The radius of Xe is 1.3*10^-8 cm. A 100-mL flask is filled with Xe at a pressure of 1.4 atm and the temperature is 290 K. Calculate the fraction of the volume that is occupied by Xe atoms.

    asked by Meg on January 31, 2011
  11. AP chemistry

    Given the standard molar entropies measured at 25 C and 1 ATM pressure calculate delta S for the reaction 2al + 3 mg0 ---> 3mg + al2o3

    asked by Tilly on October 14, 2012
  12. chemistry

    A 6.00 L balloon contains helium at SATP at ground level. What is the volume when it floats up to an altitude where the temperature is 10.0 degrees C and atmospheric pressure is 91.5 kPa

    asked by Rose on January 18, 2015
  13. chemistry

    0.361g of an unknown liquid occupied a volume of 250.0 ml at 758mm Hg pressure and 100 degrees Celsius. what is the molar mass?

    asked by khela on November 9, 2010
  14. chemistry

    Find the mass in grams of a 240 ml sample of dry air at a pressure of 750 mmHg and a temperature of 19 degrees celsius.

    asked by Kimmy on February 19, 2015
  15. Chemistry

    Calculate the volume of hydrogen produced at s.t.p when 25g of zinc are added to excess dilute hydrochloric at 3degree and 778mmhg pressure

    asked by Jubilee on February 27, 2016
  16. college of cape town

    A gas at 273 kelvin expands by 0,1 cubic metre if it is heated through 50kelvin. Calculate the original volume at constant pressure.

    asked by alistair jacobs on May 18, 2013
  17. Science

    A cup of coffee ,a 10 gallon aquarium ,and a bottle of ginger ale were on the same table .on which container was there the greatest punt of air pressure ?

    asked by Sssssss on September 10, 2013
  18. Physics

    A 20mm diameter rivet is used to fastened two 25mm thick plate If the shearing stress of rivet is 80MPa. What tensile force is applied to each plate to shear the rivet

    asked by Liv on March 27, 2019
  19. Geometry

    A diameter of a circle has endpoints P(-10, -2) and Q(4, 6). a. Find the center of the circle. b. Find the radius. If your answer is not an integer, express it in radical form. c. Write an equation for the circle. Can someone explain how to do this?

    asked by Ember Lovet on May 16, 2018
  20. Physics

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by Max on February 14, 2012
  21. Angular Acceleration

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by MaxX on February 14, 2012
  22. math

    George has enough fencing to enclose 2400 square feet around a circular pool. If he builds a circular fence and he wants 12 foot walkway around the pool, what is the largest pool diameter possible?

    asked by carmie on November 30, 2010
  23. geometry

    A hemisphere tank is filled with water and has a diameter of ten feet. If the water weighs 62.4 pounds per cubic foot, what is the total weight of water in a full tank?

    asked by jim on February 21, 2016
  24. Physics

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by Max on February 14, 2012
  25. physics

    in an oil drop experiment the radius of the oil patch was found to be 10cm and the volume of the oil used was 1.1*10^-5 cm^3. calculate; 1) the diameter of the film 2) the thickness of the patch 3) the size of the molecule

    asked by hasahya pius on February 17, 2016
  26. Physics

    Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the eardrum is about 8.4 mm in humans. How much energy is delivered to your eardrum each second when someone whispers 20dB a secret in your ear?

    asked by Unknown on November 8, 2009
  27. Chemistry

    If the copper is drawn into wire whose diameter is 9.50 , how many feet of copper can be obtained from the ingot? The density of copper is 8.94 . (Assume that the wire is a cylinder whose volume is , where is its radius and is its height or length.)

    asked by Okoye on August 31, 2011
  28. gometry

    in a circle of radius 17cm, two parallel chords are drawn on opposite sides of a diameter. the distance between the chords is 23cm. if the length of one chords is 16cm, find the length of the other.

    asked by Anonymous on June 17, 2014
  29. math

    The 7 inch diameter drive drum of a belt conveyor is turning at 130 rpm. What is the belt speed (ft/min) if there is no slip between the belt and drum? What are the steps to figures this out? Thank you for your help.

    asked by Sushmitha on March 29, 2012
  30. physics

    what is the centripetal force acting on an object with a mass of 10kg moving at a velocity of 5m/s in a circle with a diameter of 3m when the object is moving in a circular motion are the forces balanced on the object why or why not

    asked by Deanna on June 1, 2009
  31. geometry

    This one is confusing me. please help The diameter of a circle has endpoints P(–10, –2) and Q(4, 6).Find the center of the circle.Find the radius. If your answer is not an integer, express it in radical form. Write an equation for the circle. Thanks

    asked by ryan on January 12, 2012
  32. math

    There are 231 cubic inches in a gallon. a large juice can has a diameter of 6 inches and a height of 10 inches.How many gallons of juice dos the can hold? round to nearesst tenth.

    asked by charolette on May 19, 2011
  33. Solid Mensuration

    A closed cylindrical container 10 feet in height and 4 feet in diameter contains water with depth of 3 feet and 5 inches. What would be the level of the water when the tank is lying in horizontal position?

    asked by CJ on April 27, 2016
  34. Physics

    Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the eardrum is about 8.4 mm in humans. How much energy is delivered to your eardrum each second when someone whispers 20dB a secret in your ear?

    asked by Ana on November 9, 2009
  35. math

    A paper cone has a base diameter of 8cm and a height of 3cm a. Calculate the volume of the cone in term of pie b. Calculate the curve surface area of the cone

    asked by Barry on October 9, 2016
  36. word problem

    Eduardo scored 29 points in his last basketball game. He only scored 2-point field goals and 3-point feild goals. If he made 12 field goals in the game, how many of each type did he make? Let x represent the number of 2-point field goals and y represent

    asked by Carlos on May 5, 2017
  37. math

    a sand pile in a shape of an upside-down cone has a volume of 350 m2 . The diameter of the base pof the pile is 7m. what is the height of the sand pile?

    asked by mickey on June 4, 2013
  38. Physics

    A battery is used in an experiment and is connected by a 37.5 cm long gold wire with a diameter of 0.590 mm. If the battery has a voltage of 1.70 V and the resistivity of the wire is 2.4×10-8 Ω m, what is the current in the wire?

    asked by Brooklyn on March 9, 2017
  39. Math

    A triangle with a Base of 8 inches and a height of 7 inches has a circular section of diameter 3 inches removed from its center. What is the remaining area of the triangle? (Use π = 3.14)

    asked by Preia on April 30, 2015
  40. Geometry

    A machine for baling hay produces cylindrical bales that are 5 feet in diameter and 4 1/3 feet in height. how many cubic feet are in each bale of hay?

    asked by Anthony on May 26, 2011
  41. Math

    A triangle with a Base of 8 inches and a height of 7 inches has a circular section of diameter 3 inches removed from its center. What is the remaining area of the triangle? (Use π = 3.14)

    asked by Preia on April 30, 2015
  42. math

    An open cylindrical tank has an internal diameter of 5.6 cm and an internal height of 4 cm. The inside of the tank was painted. What area of the tank, in square centimeters

    asked by kiff on July 8, 2018
  43. math

    tiangle pqr is an equilateral triangle in a circle. the height of the triangle is 18 cm. the diameter of the circle is 24 cm. find the perimeter of the triangle. can you help me solve this question?

    asked by Anonymous on October 16, 2015
  44. math

    a sand pile in a shape of an upside-down cone has a volume of 350 m2 . The diameter of the base pof the pile is 7m. what is the height of the sand pile?

    asked by mickey on June 4, 2013
  45. Pre-calculus

    From a circular piece of metal sheet with diameter 20 cm, a rectangular piece with perimeter 28 cm is to be cut as shown. Find the dimensions of the rectangular piece.

    asked by Yna on November 27, 2018
  46. Circle geometry

    Please help Explain how I figure this out. A circle has diameter 70cm. A chord in the circle is 50cm long. How far is the chord from the center of the circle? I have been stuck on this for days. I appreciate any help. Thank you!!

    asked by Cherie on April 10, 2014
  47. math

    a sand pile in a shape of an upside-down cone has a volume of 350 m2 . The diameter of the base pof the pile is 7m. what is the height of the sand pile?

    asked by mickey on June 4, 2013
  48. physics

    A hollow cylinder and a solid cylinder have the same diameter. Determine which has the greater moment of inertia with respect to an axis of rotation along the axis of the cylinder.

    asked by john hide on April 3, 2018
  49. chemistry

    Calculate the temperature (K) at which the equation as written is at equilibrium. Express your answer to three significant figures. CaO(s) + CO2(g) → CaCO3(s) ∆G°f (kJ/mol) CaO(s)-604.0 CO2(g)-394.4 CaCO3(s)-1128.8 ∆H°f (kJ/mol) CaO(s)-635.1

    asked by Penny on March 11, 2013
  50. LA

    3. In basketball, the most elite athletes would (1 point) be professional. become coaches. fail to make the team. have fun. 4. Read the sentence below. Based on the context clues in the sentence, which is the best definition for the italicized

    asked by Anonymous on April 13, 2014
  51. Chemistry

    According to the reaction 2Al+3H2SO4→3H2+Al2(SO4)3, the total number of moles of H2SO4 needed to react completely with 5.0 mol of AL is 1. 2.5 mol 2. 5.0 mol 3. 7.5 mol 4. 9.0 mol

    asked by Hopeless person on December 4, 2014
  52. Chemistry

    A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must be a) rate = k (A)^2 b) rate = k (B)^2 c) rate = k (A) (B) d) rate = k (A) (B)^2 I think its D because there are 2 moles of B and 1 mole of A. Do

    asked by Mohamed on February 24, 2012
  53. chemistry

    A helium balloon contains 0.30g of helium. Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it contain?

    asked by bob on September 24, 2014
  54. Chemistry.

    If 6.02 moles of potassium react with a 0.8 M silver acetate solution, how many L of silver acetate are needed?

    asked by Victoria on March 5, 2012
  55. Chemistry.

    If 6.02 moles of potassium react with a 0.8 M silver acetate solution, how many L of silver acetate are needed?

    asked by Victoria on March 5, 2012
  56. chemistry

    The molar mass of magnesium carbonate, MgCO3, is 84 g/mole. How many moles are in 12.60 g of magnesium carbonate?

    asked by brianna on December 5, 2009
  57. chemistry

    What is the mass of 0.425 moles of CaCl2? The molar mass of CaCl2 is 110.98 g/mol.

    asked by Jessica on February 19, 2010
  58. chemistry lab

    what is the number of moles of a 0.05 M KMnO4 solution that react with 20 ml of a 0.02 M solution of FeCl2 if 75 ml of KMnO4 was required

    asked by shawnette on March 22, 2018
  59. Chemistry

    explain how you would make the following solution. You should tell how many grams of the substance you need to make the solution, not how many moles. 2L of 6M HCl

    asked by Jenifer on May 5, 2010
  60. chemistry

    If a sample of NH4NO3 contained 5.04 x 1022 hydrogen atoms, how many moles of NH4NO3 are in your sample?

    asked by Anonymous on April 27, 2013
  61. chemistry

    how many moles of potassium carbonate will be produced if 400.0 g of potassium hydrogen carbonate are heated

    asked by Tierney on October 6, 2009
  62. chemistry

    the heat of this reaction,Na + 1/2 Cl 2 NaCl, is 98.3 kcal/mole what is the heat given off two moles of NaCl are formed ?

    asked by u wish on October 21, 2010
  63. Chemistry

    A helium balloon contains 0.54g of helium. Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it contain?

    asked by Mira on February 22, 2013
  64. Chemistry

    If the molar volume of a gas is 22.42L, what volume will 39.67 moles of this gas have. My answer, (22.42)(39.67) = 889.4L IS this right? Thanks.

    asked by Ann on January 28, 2011
  65. Chemistry

    How many moles of calcium carbonate, CaCO3, are in 1.500 L of a 0.40M calcium carbonate solution?

    asked by Karina on August 25, 2017
  66. chemistry

    explain how you would make the following solution. You should tell how many grams of the substance you need to make the solution, not how many moles. 2L of 6M HCl

    asked by Jenny on May 5, 2010
  67. Chemistry

    If you have constant volume of gas how can you determine the number of moles it has? what equation do you use if your not given the constant volume value?

    asked by Sarah on March 29, 2011
  68. Chemistry

    How many moles of ethanol is contained in 250.0 ml of a 1.90M ethanol solution? A. none of these B. 7.60 C. 475 D. 0.475

    asked by Lily on March 5, 2011
  69. Chemestry

    Fe2o3+co=2Feo+co2 104.5moles +104.5moles=how many moles how i solved it

    asked by LALATENDU on June 1, 2018
  70. Chemistry

    How many moles of ethanol is contained in 250.0 ml of a 1.90M ethanol solution? A. none of these B. 7.60 C. 475 D. 0.475

    asked by MIchelle on March 5, 2011
  71. chemistry

    How many moles are in 15 grams of Lithium oxide? I got 5.0205 mol Lithium oxide but I just wanted to see if anyone else got this.

    asked by Poola on September 9, 2012
  72. Chemistry

    How many moles of ethanol is contained in 250.0 ml of a 1.90M ethanol solution? A. none of these B. 7.60 C. 475 D. 0.475

    asked by Philip on March 5, 2011
  73. Chemistry

    How do you calculate the number of moles and atoms of magnesium given the number o grams of magnesium chloride?

    asked by Anonymous on January 6, 2016
  74. Chemistry

    A solution contains 14% by mass of h2so4.find the number of moles of h2so4 in 155g of solution

    asked by Sharad on May 1, 2016
  75. physics

    The launching mechanism of a toy gun consists of a spring of unknown spring constant, as shown in the figure below. If the spring is compressed a distance of 0.160 m and the gun fired vertically as shown, the gun can launch a 21.0-g projectile from rest to

    asked by Anonymous on March 21, 2013
  76. Planning

    Negotiation/Delay/Refusal Skills - Assignment There are many ways to say “no” to pressure from a dating partner or peer. Some of the ways to do this are listed below. For each skill, write a "pressuring statement" or one for all of them, followed by a

    asked by John on October 3, 2009
  77. chemistry

    Titanium is used in airplane bodies because it is strong and light. It has a density of 4.55 g/cm^3. If a cylinder of titanium is 7.75 cm long and has a mass of 153.2 g, calculate the diameter of the cylinder. (V=pi*r^2*h, where V is the volume of the

    asked by Maria on January 17, 2011
  78. PHYSICS

    A proton is confined to a nucleus whose diameter is 5.5*10^-15m. If this distance is considered to be the uncertainty in the position of the proton, what is the minimum uncertainty in its momentum? I don't really get the uncertainty concept, and how can I

    asked by Elaine on April 29, 2008
  79. phys

    A rock stuck in the tread of a 56.0--diameter bicycle wheel has a tangential speed of 3.10 . When the brakes are applied, the rock's tangential deceleration is 1.30m/s2 What is the magnitudes of the rock's angular velocity at = 1.70 ?

    asked by keren on May 28, 2012
  80. math

    Complete in Metric Conversions: The 7 inch diameter drive drum of a belt conveyor is turning at 130 rpm. What is the belt speed (ft/min) if there is no slip between the belt and drum?

    asked by Amy on March 27, 2012
  81. Solid mensuration

    A wooden sphere 16 inches in diameter is placed on a table. The ball is cut horizontally 4in and 10in above the table surface. Find the surface area of the table remains after two cutting

    asked by anonymous on March 10, 2016
  82. Maths

    The pulley in the jib of a crane has a diameter of 56cm. Find: a) The circumference of the pulley b) The number of revolutions turned by the pulley when the crane raises a load through a vertical height of 44m.

    asked by Hyaa on November 8, 2014
  83. Math

    Pam served her apple pie on a 13 inch diameter dish. She wanted to tie a ribbon around the dish to make it a little more festive. How long does the ribbon need to be in order to fit around the dish?

    asked by Jose on March 16, 2014
  84. Physics

    A laser that emits pulses of UV lasting 2.95 ns has a beam diameter of 4.05 mm. If each burst contains an energy of 4.60 J, what is the length in space of each pulse? What is the average energy per unit volume (the energy density) in one of these pulses?

    asked by Ashton on October 16, 2014
  85. Mathematics

    A cylindrical tube, open at both ends, is made of metal. The internal diameter of the tube is 10.4cm and its height is 25 cm. If thickness of the metal is 8mm everywhere, calculatd the volume of metal in the cylinder

    asked by Rahul on January 4, 2015
  86. Mechanics of Materials

    the propane gas tank has an inner diameter of 1500mm and wall thickness of 15mm. If the wall is pressurized to 2MPa, determine the absolute maximum shear stress in the wall of tank.

    asked by andy on December 11, 2012
  87. physics

    A cylindrical tube open at both ends is made of metal. The internal diameter of the tube is 11.2 cm and its length is 21 cm. The metal every where is 0.4 cm thick. Calculate the volume of the metal correct to 1 place of decimal

    asked by suhani on February 16, 2013
  88. physics

    A laser that emits pulses of UV lasting 2.95 ns has a beam diameter of 4.05 mm. If each burst contains an energy of 4.60 J, what is the length in space of each pulse? What is the average energy per unit volume (the energy density) in one of these pulses?

    asked by Ashton on October 17, 2014
  89. physics

    A cylindrical tube open at both ends is made of metal. The internal diameter of the tube is 11.2 cm and its length is 21 cm. The metal every where is 0.4 cm thick. Calculate the volume of the metal correct to 1 place of decimal

    asked by suhani on February 16, 2013
  90. MATH

    There are 231 cubic inches in a gallon. A large juice can has a diameter of 6 inches and a height of 10 inches. How many gallons of juice does the can hold? Round your answer to the nearest tenth. I am clueless please please help me!!!!

    asked by audrey on May 17, 2011
  91. physical science

    A weight attached to a wire is swung in a circular path. Its speed is 12 meters/sec, and it has a centripetal acceleration of 9.0 meters/sec2. Calculate the diameter of the circle. 1.3 meters 2.6 meters 16 meters 32 meters

    asked by pat on June 27, 2011
  92. civil engineering

    the propane gas tank has an inner diameter of 1500mm and wall thickness of 15mm. If the wall is pressurized to 2MPa, determine the absolute maximum shear stress in the wall of tank.

    asked by andyy on December 11, 2012
  93. physics

    A rock stuck in the tread of a 57.0 cm diameter bicycle wheel has a tangential speed of 3.00 m/s. When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2. At what time is the magnitude of the rock's acceleration equal to g?

    asked by skywalker on November 27, 2010
  94. Math

    Tennis balls withal diameter of 2.5 in. Are sold in cans of three. The can is a cylinder. What is the volume of the space in the can not occupied by tennis balls? Assume the balls touch the on the sides,top and bottom.

    asked by Please Help on March 1, 2011
  95. physics

    A 67.5-kg basketball player jumps vertically and leaves the floor with a velocity of 1.66 m/s upward. (Take upward as positive and forward as positive.) (a) What impulse does the player experience? magnitude direction (up,down, back or zero) (b) What force

    asked by sally on March 29, 2012
  96. Calculus

    Find the force on a hollow dome that is 1000 feet in diameter, that is a mile below the surface. HOw large can the dome be expanded and not surpass 600 billion pounds. I know the height will be 500, and i think that the intergral is 5280 to 4780 int

    asked by Jacob on April 11, 2009
  97. Physics Gravity

    A projected space station consists of a circular tube that will rotate about its center (like a tubular bicycle tire) as shown in the figure . The circle formed by the tube has a diameter of about 1.1-km g = R w^2 = 9,8 m/s^2 R = 550 m How do I convert the

    asked by Mike Joseph on June 17, 2012
  98. phy

    How much work is done by the motor in a CD player to make a CD spin, starting from rest? The CD has a diameter of 12.8 cm and a mass of 15.7 g. The laser scans at a constant tangential velocity of 1.23 m/s. Assume that the music is first detected at a

    asked by opp on March 21, 2012
  99. Language Arts

    Underline who or whom to complete each sentence correctly. 1.(Who, Whom) is your favorite athlete? Underline Who 2. I disagree with Alan, (who, whom) likes basketball players Answer: Not Sure 3. About (who, whom) is that article written? Answer: Not Sure

    asked by Patrick on February 22, 2016
  100. biology

    Which are stronger bonds, molecular or ionic and why? There are exceptiions to every rule. GENERALLY, it takes more energy to break ionic bonds than molecular bonds. GENERALLY, ionic bonded compounds have a very high melting point (NaCl is in the

    asked by I am not joe on November 2, 2006