Questions Asked on
August 1, 2012

  1. Physics

    A police car traveling at 94.5 km/h is traveling west, chasing a motorist traveling at 77.2 km/h. (a) What is the velocity of the motorist relative to the police car? The magnitude and its direction (b) What is the velocity of the police car relative to

    asked by John
  2. Statistics

    A random sample of forty-eight 200 meter swims has a mean of 3:12 minutes and a standard deviation of .09 minute. Construct a 95% confidence interval for the population mean time. I know u: 3.12, sx: .09, n:48, c:.95 What is the formula I use to find the

    asked by Brian
  3. CHEMISTRY

    The standard molar entropy of lead(II) bromide (PbBr2) is 161 J/mol • K. What is the entropy of 2.45 g of PbBr2? a. +1.07 J/K d. –161 J/K b. –1.07 J/K e. 0 J/K c. +161 J/K

    asked by MONICA
  4. math

    From a lookout tower 80 ft. high, a man observes from a position 6.5 ft. below the top of the tower that the angle of elevation of the top of a certain tree is 12 degrees 40 minutes and the angle of depression of its base is 72 degrees 20 minutes. If the

    asked by Sasuke
  5. CHEMISTRY

    What is the entropy change to the surroundings when 1 mol of ice melts in someone’s hand if the hand temperature is 32°C? Assume a final temperature for the water of 0°C. The heat of fusion of ice is 6.01 kJ/mol. a. –188 J/K d. +19.7 J/K b. –22.0

    asked by MONICA
  6. CHEMISTRY

    If 1 mol of ice melts at its melting point of 273 K, the entropy change for the ice is 22.0 J/K. If the ice melts in someone’s hand at 34°C, what is the change in the entropy of the universe? Assume a final temperature for the water of 0°C. The

    asked by MONICA
  7. math

    A population is increasing according to the exponential function defined by y = 2e0.02x, where y is in millions and x is the number of years. How large will the population be in 3 years?

    asked by Brad
  8. CHEMISTRY

    The entropy of a NaCl crystal is __________ a. an intensive property and a state function. b. an intensive property and a path function. c. an extensive property and a state function. d. an extensive property and a path function. e. not appropriately

    asked by MONICA
  9. math

    From a mountain 1780 ft. high, the angle of depression of a point on the nearer shore of a river is 48 degrees 40 minutes and of a point directly across on the opposite side is 22 degrees 20 minutes. What is the width of the river between the two points?

    asked by Sasuke
  10. math

    Simon's monthly take home pay (after taxes) is 2500.if he pays 21% of his gross pay(before taxes) in taxes. what is the gross pay?

    asked by verkesia
  11. physics

    The half life of a radioactive sample is 6.93 days.after how many days will only one -tenth of the sample be left behind?

    asked by Mira
  12. Math ( Can You check my Work?)

    1.an = 3n - 1 2. an = 2(2n - 3) 3.an = 4^n 4.an = (2/3)^n 5. an = (-1)^n(n + 5) 6. an = (-1)^n + 1(n + 6) 7. an= n+3/2n-1 8. a1 = -5 and an = an-1 - 3 for n ≥ 2 9. a1 = -6 and an = -2an-1 for n ≥ 2 10.a1 = 4 and an = 3an-1 + 2 for n ≥ 2 11. Find a8

    asked by Tony
  13. CHEMISTRY

    During a spontaneous chemical reaction, it is found that äSsys < 0. This means __________ a. äSsurr < 0 and its magnitude is < äSsys. b. äSsurr < 0 and its magnitude is > äSsys. c. äSsurr > 0 and its magnitude is < äSsys. d. äSsurr > 0 and its

    asked by MONICA
  14. Psychology

    The basic assumption shared by trait theorists is that Answers.... the unconscious mind is the underlying source of our traits. an individual's traits are consistent across different situations. people possess the traits to the same degree but differ in

    asked by Anonymous
  15. physical fitness please help me

    Choose all the answers that apply. It's important to keep your exercise intensity within your target heart rate range so that _____. your heart gets a rest you're performing cardiovascular exercise you don't work at too high an intensity level you're

    asked by Morgan
  16. Chemistry

    Need help to identify 10 facts about the reaction that can be read in this equation: 2AgNO3 (aq) + PbBr2 (s) --> 2AgBr (s) + Pb(NO3) 2 (aq) I had already balanced the equation original was AgNO3 (aq) + PbBr2 (s) --> AgBr (s)+ Pb(NO3) 2 (aq)

    asked by Stephanie
  17. math

    The yearly attendance at a local restaurant is 42,400 and grows continuously at a rate of 4.1% each year. What is the approximate attendance at the restaurant in 15 years?

    asked by anonymous
  18. Calculus

    after t months on the job a postal clerk cn sort Q(t)=700-400e^-0.5t letters per hour. Wht is the average rate at which the clerk sorts mail during the first 3 months on the job. What is the average rte t which the clerk sorts mail during the first 3

    asked by Marsha
  19. urgent!!

    Summer Swimming Selection The municipal swimming pool in Nicetown has three different ways of paying for individual open swimming. Evan is trying to decide which way to pay. • Early Pay: Pay $45 before Memorial Day; swim any number of days • Deposit

    asked by Morgan
  20. Heat Transfer

    A fin 30 cm long & 10mm diameters throughout is made of steel alloy of thermal conductivity 43 W/m-deg. the fin attached to a plane heated wall at 200 deg.C temp. extends into surroundings at 25 deg.C.& Unit surface conductance of 120W/m^2-deg. Workout the

    asked by Rafeeq
  21. organic chemistry

    Describe and explain how each of the following experimental errors or variations might affect your results. (a) you failed to dry the reaction flask after washing it with water. (b) you forgot to add the sulfuric acid. (c) you used twice the amount of

    asked by Anonymous
  22. Statistics

    What percentage of college students are attending a college in the state where they grew up? Let p be the proportion of college students from the same state as that in which the college resides. If no preliminary study is made to estimate p, how large a

    asked by Anonymous
  23. physics

    a uniform weightless rod 8 meters long weighing 800N is supported horizontaly by two ropes hung 2 meters from its ends.Find the force in each rope when a painter weighing 700N stands from one ends.

    asked by ryan naboa
  24. CHEMISTRY

    14. Calculate ƒ´S0 for the formation of 1 mol of HI(g) from its elements given the following information: S0[H2(g)] = 131 J/mol∙K S0[I2(s)] = 116 J/mol∙K S0[HI(g)] = 206 J/mol∙K. A) 82 J/K B) 165 J/K C) 247 J/K D) 329 J/K

    asked by MONICA
  25. math

    In a lawn, there is a patch of clover. Every week, the patch doubles in size. If it takes 12 weeks for the patch to cover the entire lawn, how long would it take for the patch to cover half of the lawn?

    asked by Anonymous
  26. HEALTH

    Why are many fad diets considered unhealthy? A. Because they may not provide all of the nutrients your body needs B. Because they often promise quick weight loss C. Because people typically find it difficult to keep lost weight off D. All of the above D?

    asked by Aya
  27. theory of machine

    a differential band brake has a drum of diameter 800mm. the two ends of the band are fixed to the pins on the opposite sides of the fulcrum of the lever at a distance of a=40mm and b=200mm from the fulcrum. the angle of contact is 270 degree and mue = 0.2

    asked by raju
  28. Algebra

    Parking in a student lot cost $1 for the first half hour and $1.25 for each hour thereafter. A partial hour is charge the same as a full hour is charge the same as a full hour. What is the longest time that a student can park in this lot for $9.

    asked by Kia
  29. Program logic design

    • Assignment 1: Chocolate Delights Candy Company, Part 1 Due Week 5 and worth 210 points Chocolate Delights Candy Company manufactures several types of candy. Design a flowchart using Visual Logic for the following: 1. A program that accepts a candy name

    asked by Moe
  30. HEALTH

    What are the three types of eating disorders discussed in your reading materials? A. Anorexia, bulimia, binge-eating B. Anorexia, bulimia, starvation C. Anorexia, binge-eating, starvation D. Anorexia, binge-eating, chronic nervosa A?

    asked by Aya
  31. Physics

    Consider the induced nuclear reaction 1H2 + 7N14 ---->6C12 + 2He4. The atomic masses are 1H2 (2.014102 u), 7N14 (14.003074 u), 6C12 (12.000000 u), 2He4 (4.0026030 u). Determine the energy (in MeV) released when the 6C12 and 2He4 nuclei are formed in this

    asked by Beth
  32. CHEMISTRY

    . For which reaction is ƒ´Ssys ƒ® 0? A) CH4(g) + 2 O2(g) ¡÷ CO2(g) + 2 H2O(l) B) NH3(g) + HCl(g) ¡÷ NH4Cl(s) C) 2 NH4NO3(s) ¡÷ 2 N2(g) + O2(g) + 4 H2O(g) D) HCl(aq) + NaOH(aq) ¡÷ NaCl(aq) + H2O(l)

    asked by MONICA
  33. chem

    A 5.00 liter sample of gas measured at 27.0*C and 1.25 atm presure has a mass of 10.13 g. What is the formula weight of the gas?

    asked by liz
  34. math

    Given the argument and its Euler diagram, determine the syllogism is valid or invalid. Those who play football. don Football and studying donft mix Those who studt Don is a football player ˆdon does not study

    asked by frank
  35. math

    The municipal swimming pool in Nicetown has three different ways of paying for individual open swimming. Evan is trying to decide which way to pay. • Early Pay: Pay $45 before Memorial Day; swim any number of days • Deposit Plus: $20 deposit plus $2.00

    asked by Morgan
  36. HEALTH

    The National Weight Control Registry found in their research that those who had maintained a significant weight loss reported improvements in ________. A. Physical health and energy levels only B. Stress reduction and general health C. Self-confidence and

    asked by Aya
  37. HEALTH

    A calorie is defined as ¬¬¬¬________. A. A unit of energy supplied by foods with refined sugars B. A unit of measure supplied by cells C. A unit of measure supplied by carbohydrates D. A unit of energy supplied by food a?

    asked by Aya
  38. accounting

    How do businesses determine what salvage values to use for their various assets? Are there “hard and fast” rules for salvage values?

    asked by Kim Copper
  39. math

    Solve each system graphically. Be sure to check your solution. If a system has an infinite number of solutions, use set−builder notation to write the solution set. If a system has no solution, state this. 6x – 2y = 2, 9x – 3y = 1

    asked by Deb
  40. Physics

    A particular microwave oven operates at 1000W. The wavelength of the microwave is 12.0cm. You decide that you like your snack to absorb 1.2 x 10^28 photons. For how much time should you have the oven on- with your snack inside of course. Assume 100%

    asked by Rosh
  41. chem

    What volume in liters is occupied by 8.22 g of SO2 gas confined at a pressure of 1200.8 torr at 75.0*c?

    asked by liz
  42. Theory of machine

    Fill in the blanks: 1. A disc is spinning with an angular velocity w rad/sec about the axis of pin. The coupled to the causing precession will be ....... 2. The swaying couple is due to the ...... unbalanced force. 3.All pairs are ....... pair in a

    asked by Dhilsath
  43. chemistry

    If you assume that there is 5% acetic acid in vinegar, how much vinegar should you weigh out so that the endpoint requires 25.0 mL of 0.186 M NaOH?

    asked by Luke
  44. HEAT TRANSFER

    Compute the heat flux thoroughly a 10 cm thick brick wall (k= 0.69 W/m-deg) Which has temperature of 105° C & 10° C maintained on its two faces. How this heat flux would vary when 3cm thick layers of magnesia insulation is added on the inside & outside

    asked by SIDDIQUE
  45. Physics

    A sled rests at the top of a 25 degree slope that is 80m in length. If uk = .25 and the velocity at the bottom of the incline is 20m/s then what is the weight of the sled?

    asked by Willy
  46. physics

    a spring with a length of 22.0 centimeters hangs from a ceiling. when a 755-gram mass is attached ti the spring, the spring strethes to 35.0 centimeters. what is the magnitude of the spring constant in N/m

    asked by Anonymous
  47. Psychology

    Behavioural geneticists and evolutionary psychologists emphasize _______________. Answers environmental influence on development the role of personality in development the significance of hereditary factors in development the importance of parenting skills

    asked by Anonymous
  48. number theory

    Find the least positive integer that leaves the remainder 3 when divided by 7, remainder 4 when divided by 9, and remainder 8 when divided by 11

    asked by john
  49. number theory

    Find the remainder when 1!+2!+...+299!+300! is divided by 21

    asked by john
  50. Math

    Find the least positive integer that leaves the remainder 3 when divided by 7, remainder 4 when divided by 9, and remainder 8 when divided by 11. Using the Chinese Remainder Theorem.

    asked by Shaakira
  51. HEAT TRANSFER

    The door of a domestic refrigerates has an area of 1.7 m2 & it basically consists of a thin metal sheet with a 25 mm thick layer of insulation on the inside. The thermal conductivity of this insulation is 0.25 W / m-deg & heat transfer on each side of the

    asked by SIDDIQUE
  52. College Algebra

    1. Which of the following best describes how the graph of f can be obtained from the graph of y = 1/x^2? f(x) = 4/x^2 a. vertical stretch by a factor of -4 b. horizontal shift of 4 units to the right c. reflection over the y-axis, vertical shrink by a

    asked by Kameesha
  53. design

    1. A person with a square face shape and a rectangle body shape has what bodyline? A. Straight.(yes) B. Sharp-straight C. Soft-straight D. Soft-straight II 2. A suit with rounded lapels and a shawl collar would work best for a woman with a _______

    asked by need to check my answers
  54. Health

    Researchers found that a ________ is more important and is the key to losing weight rather than a popular one. A. Fad diet B. Low-carb diet C. Stick-to-it diet D. Counting calories diet D?

    asked by Aya
  55. HEALTH

    BMI is used to screen for ________. A. Weight categories that may lead to health problems B. Weight categories that may lead to an improved self-image C. Body types that are not ideal D. Body types that seem attractive and appealing A?

    asked by Aya
  56. health

    What is the best way to lose weight and keep the weight off? A. By losing ½ to 2 pounds a week B. By losing 3 to 5 pounds a week C. By losing 6 to 8 pounds a week D. By losing 10 or more pounds a week a?

    asked by Aya
  57. Trigonometry

    Which of the following pairs of vectors are orthogonal? (i) v = 18i − 3j and w = −i − 6j (ii) v = 15i − 2j and w = −4i + 30j (iii) v = 3i − j and w = i + 3j A. (i) and (ii) B. (i) and (iii) C. (ii) only D. (i) only 17.

    asked by Anonymous
  58. Law/421

    Let’s assume that Bill receives a message from Annie in which she offers to sell her plasma television to Bill for $1200. Bill immediately sends her a letter saying “I have always wanted one of those televisions. But, in this economic climate, my

    asked by anita
  59. PHYSICS

    A 12·kg cart is moving to the west at 6·m/s. What is the kinetic energy of the cart?

    asked by Anonymous
  60. CHEM

    IF A SAMPLE OF GASE HAVE A VOLUME OF 8.20 L AT 25*C AND 2.00 ATM, HOW MUCH VOLUME WILL IT TAKE UP IF YOU DECREASE THE PRESSURE TO 1.50 ATM AND INCREASE THE TEMPERATURE TO 100*C?

    asked by liz
  61. math

    Wheel X with radius 5 makes 5 revolutions along a road, and wheel Y with radius 6 makes 4 revolutions along the same road. What is the difference in the distances traveled by the 2 wheels?

    asked by Anonymous
  62. math

    What percentage interest rate is a loan that charges one hundred dollars in simple annual interest over 5 years on a one thousand dollar balance?

    asked by Anon
  63. Discrete Math

    Statements P->Q, ~R->(S->T), R v(P v T), and ~R are true. What is the truth value for the statement, (Q v S)?

    asked by Jerry
  64. English

    Social anthropologists attempt to explain the social emergence, evolution and development of the human race. They also try to determine differences between human social organization and other primate beings. One of their attempts is note dissimilarity

    asked by rfvv
  65. Heat Transfer

    A metal storage tank of external area 0.5 m^2 contains water at 65 degree C. & is located inside a large enclosure with wall at 10 deg.C. the tank is painted black on the outside & its emissivity is approx. to 0.95. How much reduction in heat loss would

    asked by Dhilsath
  66. Psychology

    what are some factors that strongly and weakly correlated with creativity?

    asked by Anonymous
  67. heat transfer

    True or false (i) Steel is better conductor of heat than bricks. (ii) Radiations are ultrasonic waves. (iii) Black body is having emissivity 2. (iv) Natural convection do not need any external source for fluid flow. (v) Fins cause increase in rate of heat

    asked by siddique
  68. Phystcs

    How does the force between two objects change when the mass of one object and distance between the two object are doubled.

    asked by Anupam khatiwara
  69. economics

    How would a fall in U.S. interest rates affect Canadian investment, saving, net foreign investment, and the Canadian real exchange rate

    asked by Anonymous
  70. Math

    A certain mountain has an elevation of 19,583 feet. In 1907, the glacier on this peak covered 10 acres.By 2002, this glacier had melted to only 1 acre. (a) Assume this glacier melted at a constant rate each year. Find this yearly rate. (b)Use your answer

    asked by Lori
  71. math

    A tugboat goes upstream 120 miles in 20 hours. The return trip downstream takes 10 hours. Find the speed of the tugboat without the current and the speed of the current.

    asked by Lori
  72. CHEM

    A GAS TAKES UP 25.2 L AT 25*C. AT 25*c THE GAS CAN ALSO TAKE UP 12.2lAT 1520 TORR. WHAT WAS THE PRESSURE IN ATM, OF THE ORIGINAL SAMPLE? I GOT 4.1S ATM. IS THAT RIGHT?

    asked by liz
  73. Math

    what is the area of a regular hexagon inscribed in a circle with area of 9?

    asked by Sara
  74. law/421

    How does the strict liability doctrine apply to business corporations? Provide examples and explain how your example demonstrates the strict liability doctrine that applies to business corporat

    asked by a
  75. math algebra

    adding with mixed numbers Can you check my answers: 1) 4 1/4 + 3 1/12 I GOT: 7 1/3 2) -7 1/2 + 5 2/3 i got -3 1/6 3) -3 4/5 + (-4 7/10) i got -6 1/2

    asked by marko
  76. English

    A committee of architects and firms was formed to plan the Word's Exposition buildings. The collective result was the construction of a group of 150 buildings known by the White City. Their design established white, columnar architecture as the only

    asked by rfvv
  77. Dynamics

    a flywheel has an angular speed of 1200rev/min when its motor is turned off.the wheel attains constant decelerations of 1.5rad/s2 due to friction in its bearing.determine the time required for the wheel to come to rest and the numer of revolutions the

    asked by sanjeev kumar
  78. Theory of machine

    A punching machine carries out 5 holes per minute. Each hole of 30 mm dia in 40 mm thick plate requires 10 NM of energy per mm^2 of the sheared area. The punch has a stroke of 90 mm. find the power of the motor required if the mean speed of the flywheel if

    asked by Dhilsath
  79. physics

    A car of weight W = 12.3 kN makes a turn on a track that is banked at an angle of θ = 20.9°. Inside the car, hanging from a short string tied to the rear-view mirror, is an ornament. As the car turns, the ornament swings out at an angle of φ = 28.3°

    asked by ayhan
  80. number theory

    Find the remainder when 1!+2!+...+299!+300! is divided by 21

    asked by john
  81. Heat Transfer

    1.The physical significance of ....... is that it tells us how fast heat is propogated or it diffuses through a material during changes of temperature with time. 2. According to Krichoff's law in thermal equilibrium absorptivity is equal to ........ 3.In

    asked by Devi
  82. math

    convert 7800 into scientific notation

    asked by verkesia
  83. math

    a new sidewalk will be 5ft wide 160ft long and 3ins deep.how many cubic yards of concret is needed?

    asked by verkesia
  84. Calculus

    A line in the first quadrant is tangent to the graph of y=1/x^2. How can we minimize the area between the line and the axes?

    asked by Cristy
  85. math

    if you invest 2000 in an acount for 20 years that pays 6% simple intrest.how much money would you have at the end?

    asked by verkesia
  86. Physica

    What is the value of the focal length fn2 of a convergent lens with index of refraction ( n2 =1.5) if it was fn1 =5cm for an index of refraction n1 = 1.4 .

    asked by LO
  87. math

    Because of the wind, a boat sails 4 728 meters in the directions S 47 degrees 29 minutes W. How far south has it gone? How far west has it gone?

    asked by Sasuke
  88. Math

    If a 3/8" drill bit is rotating clockwise at 1300 RPM and the bit shatters, at what speed will the projectile be traveling outward?

    asked by Troy
  89. Trigonometry

    An airplane is flying on a heading of 115° with a constant velocity of 675 mph. How far south will it travel in 2 hours if it continues to maintain its velocity? A. 290 miles B. 570 miles C. 310 miles D. 610 miles

    asked by Cyndy
  90. Trigonometry

    A 175-pound force and a 230-pound force are acting on the same point in directions that differ by 42°. What is the angle that the resultant makes with the 175-pound force? A. 22° B. 24° C. 32° D. 18°

    asked by Cyndy
  91. health

    Why is having excessive abdominal fat a serious concern? A. Because it places you at a greater risk for developing obesity related illnesses B. Because it places you at a lower risk for developing obesity related illnesses C. Because it places you at a

    asked by Aya
  92. HEALTH

    In order to lose weight you have to ________. A. Eat more B. Eat less C. Burn more calories than you consume D. Burn less calories than you consume Reset Selection C?

    asked by Aya
  93. HEATH

    How do you lose weight? A. By using up more energy than you take in B. By using up more money on diet programs and pills C. By using up more calories than you take in D. By using up less energy than you take in' C?

    asked by Aya
  94. health

    If you’ve decided to lose weight then ________. A. Modest weight loss can lead to little health benefits B. Even modest weight loss can lead to big health benefits C. Little weight loss can lead to little health benefits D. Large weight loss can lead to

    asked by Aya
  95. health

    Which approach is commonly used to treat eating disorders? A. Electroshock therapy B. Nutritional counseling C. Physical fitness D. None of the above b?

    asked by Aya
  96. health

    Why is having excessive abdominal fat a serious concern? A. Because it places you at a greater risk for developing obesity related illnesses B. Because it places you at a lower risk for developing obesity related illnesses C. Because it places you at a

    asked by Aya
  97. Ms. Sue

    for my homework im suppose to discuss the use of color and light in an architectural building. How do i go about doing that? What do they mean

    asked by Anonymous
  98. Trigonometry

    Given triangle ABC with a = 16, b = 14, and Angle is = 54°, find the value of c. A. 3.1 and 20 B. 4.1 and 15 C. 15 D. 3.1

    asked by Anonymous
  99. finance

    what is the future value of $2,000 in a bank account for 6 years at 4 percent compounded bimonthly

    asked by dean
  100. ob

    Critical, selfish, and rude are opposite traits for which dimension of the Big Five?

    asked by Anonymous
  101. Math

    Why did the chicken add its opposite to itself? To get to the other side of the...???

    asked by Anonymous
  102. Math

    f(a)=t, f(b)=s, f(c)=r, f(d)=t Write the function as a set of ordered pairs. Give the domain and range of F.

    asked by Lori
  103. history

    Please help me with my essay titled energy crisis: then and today...thanks

    asked by maria
  104. Trigonometry

    How much work is done by raising a 117-lb box vertically 18.0 inches? A. 5,190 ft-lb B. 2,110 ft-lb C. 25,300 ft-lb D. 176 ft-lb

    asked by Anonymous
  105. Trigonometry

    A cable that can withstand 2,250 pounds is used to pull cargo up an inclined ramp. If the inclination of the ramp is 21.5°, what is the heaviest piece of cargo that can be pulled up the ramp, ignoring friction? A. 825 pounds B. 2,090 pounds C. 6,140

    asked by Anonymous
  106. algebra

    find the total number of feet of wood needed if the trellis is 8 feet tall and 2 feet wide.

    asked by cynthia
  107. chem

    Calculate the formula wright of a 2.50 g sample of gas whose volume is 1.40l at STP.

    asked by liz
  108. Math

    a polygon P is inscribed in a circle C with area of pie. Circle C and polygon P MUST intersect in at least how many points?

    asked by Sara
  109. Science

    Why CuO powder not soluble in hexane and methanol?

    asked by Magi
  110. maths

    Why CuO nanoparticles not dissolved in ammonium hydroxide and water?

    asked by magesh
  111. English

    1. When the cheese is being aging, the bacteria make their way into it. (Is this sentence correct? Would you correct the errors in it?) 2. If you go tonight, my membership discount will save you fifteen dollars. - Really? Alright, I'm _______ on the idea.

    asked by rfvv
  112. Psychology

    Research suggests that the _____ child care centers is the critical factor that determines whether or not children benefit from out of home child care. 1) quality of 2) geographic location of? 3) gender ratio of children in? 4) racial composition of

    asked by Anonymous
  113. Heat Transfer

    Explain thermal conductivity & give its variation in case of solid, liquids and gases?

    asked by Dhilsath
  114. Heat Transfer

    Define Thermal diffusivity law?

    asked by Dhilsath
  115. Heat Transfer

    Fill In the Blanks: 1.The physical significance of ....... is that it tells us how fast heat is propogated or it diffuses through a material during changes of temperature with time. 2. According to Krichoff's law in thermal equilibrium absorptivity is

    asked by Dhilsath
  116. Physica

    What is the value of the focal length fn2 of a convergent lens with index of refraction ( n2 =1.5) if it was fn1 =5cm for an index of refraction n1 = 1.4 .

    asked by fa 2
  117. hyraullics

    Whether the gauge pressure at 500m below sea level will be game as gauge pressure at ground level? Give reason.

    asked by ishwar
  118. Heat Transfer

    A fin 30 cm long & 10mm diameters throughout is made of steel alloy of thermal conductivity 43 W/m-deg. the fin attached to a plane heated wall at 200 deg.C temp. extends into surroundings at 25 deg.C.& Unit surface conductance of 120W/m^2-deg. Workout the

    asked by Guru
  119. math

    Find the remainder when 1!+2!+...+299!+300! is divided by 21

    asked by John
  120. math

    Noting that 247=(13)(19), find the remainder when 13^18+19^12 is divided by 247

    asked by John
  121. Finance

    compound interest earned in an account that opens with $28,000, earns 2.4% interest compounded daily, and is held for 10 years. Assume 360 days in a year

    asked by diamond
  122. Calculus

    find the flux of F= across the parabolic sheet given by x=2y^2+2z^2+3, with x

    asked by Antonio
  123. Calculus

    consider the curved cylinder surface whose center line is the x axis and is between the planes x=0 and x=5.the radius is 4. Find the flux of through it

    asked by Antonio
  124. math

    a dog uses 55lbs of food a day. how many pounds are used in a year?

    asked by verkesia
  125. Math

    Find the remainder when 1!+2!+...+299!=300! is divided by 21 using mod 0 in base 21.

    asked by Shaakira
  126. Math

    Find the last two digits (units and tens digit) in 1829^1829 and find the units digit in 23^7777.

    asked by Jonathan
  127. Reading

    Determine which of the following items are inductive generalizations and which are statistical syllogisms. Explain your answer. 1. I don’t think camphor trees are deciduous; at any rate ours isn’t. 2. Blu-ray disks aren’t any better than regular old

    asked by TIA
  128. math

    how do I find the the relationship between Y and X on a input/output table

    asked by celestial
  129. enc 1101

    what are the similarities between the tell-tale heart and charles

    asked by shamalia
  130. Elementary Algebra

    Simplify:2x-9 Divided by 9-2x

    asked by Wanda
  131. theory of machine

    1. the contact ratio is....... (a)zero (b)more than one (c)less than one (d)none of these 2. the ratio of maximum displacement of the forced vibration to the deflection due to the static force is known as................ (a)damping factor (b)magnification

    asked by raju
  132. biology

    My question is that I want a project based on the Human Body.Like a project of Cells ( I have done that) HELP give me ideas

    asked by BlueBerryAqua
  133. Physica

    What is the value of the focal length fn2 of a convergent lens with index of refraction ( n2 =1.5) if it was fn1 =5cm for an index of refraction n1 = 1.4

    asked by MM1
  134. HEALTH

    How do you lose weight? A. By using up more energy than you take in B. By using up more money on diet programs and pills C. By using up more calories than you take in D. By using up less energy than you take in A?

    asked by Aya
  135. hEALTH

    What should you do to uncover the number of calories you are currently eating? A. Estimate the number of calories you eat each day by memory B. Begin writing down the foods you eat and the beverages you drink each day C. Monitor how much weight you’ve

    asked by Aya
  136. health

    How often should children and teenagers be physically active? A. For at least 100 minutes each day or almost everyday B. For no less than 20 minutes each day or almost everyday C. For no less than 30 minutes each day or almost everyday D. For at least 60

    asked by Aya
  137. math

    65.25 is 25% of what number

    asked by John
  138. Trigonometry

    Given triangle ABC with a = 16, b = 14, and Beta = 54°, find the value of c. A. 3.1 and 20 B. 4.1 and 15 C. 15 D. 3.1

    asked by Anonymous
  139. Elementary Algebra

    How do I solve the system of equations by graphing? example:4x+y+2, x= 1/2+5

    asked by Wanda
  140. PSY240

    PSY240 Week Three DQ#2 On p. 84 of the text, in the Thinking Clearly section, the conduction action potentials and activation of neurotransmitters is related to a row of mousetraps on a wobbly shelf. Think of your own original analogy you can use to

    asked by Anonymous
  141. PSY240

    PSY240 Week Three DQ#2 On p. 84 of the text, in the Thinking Clearly section, the conduction action potentials and activation of neurotransmitters is related to a row of mousetraps on a wobbly shelf. Think of your own original analogy you can use to

    asked by Anonymous
  142. PSY240

    PSY240 Week Three DQ#2 On p. 84 of the text, in the Thinking Clearly section, the conduction action potentials and activation of neurotransmitters is related to a row of mousetraps on a wobbly shelf. Think of your own original analogy you can use to

    asked by Anonymous
  143. Math

    The perimeter of a rectangle equals the sum of the length of its four sides.If the width of the rectangle if 7 inches and its perimeter is 48 inches, what is the length of the rectangle?

    asked by Lori
  144. Physics

    Suppose a nucleus of 93X236 fissions into two fragments whose mass ratio is 0.37:0.63. With the aid of the drawing, estimate the energy (in MeV) released during this fission. Ive treied to do this problem but i keep getting the wrong answer. I keep getting

    asked by Beth
  145. Math

    What scenic structures are featured in chapter 2 Problem Solving on Location?

    asked by Annie
  146. Trigonometry

    Given triangle ABC with gamma = 61.0°, Beta = 29.0°, and b = 20.5, find the value of a. A. 9.94 B. 11.4 C. 42.3 D. 37.0

    asked by Anonymous
  147. Mat/116

    In 2000,in country A, the average family net worth was $340,000,and there were about 9.4*10^7 families. Calculate the total family net worth in Country A in 2000.

    asked by Lori