1. physics

    power supply has an open-circuit voltage of 39.0 V and an internal resistance of 2.00 Ù. It is used to charge two storage batteries connected in series, each having an emf of 5.50 V and internal resistance of 0.300 Ù. The charging current is to be 3.30

    asked by Anonymous on March 6, 2012
  2. phsyics

    please I really need help with these 1. A man pulls a 300 N object across a horizontal surface using a 100 N force applied at a 35° angle. What is the normal force? If the object is pulled at constant speed, what is the coefficient of friction?

    asked by physics LSU on October 13, 2010
  3. physics

    An AC voltage of the form Δv = (65.0 V)sin(340t) is applied to a series RLC circuit. If R = 46.0Ω, C = 27.0 μF, and L = 0.300 H, find the following. (a) impedance of the circuit Ω (b) rms current in the circuit A (c) average power delivered to the

    asked by Michelle on March 22, 2018
  4. Ap chem

    If 200 ml of .300 molarity of silver nitrate are mixed with 350 ml of .500 molarity calcium chloride ions how many grams of percipitate are formed? How many moles of each ions are present?

    asked by Eman on November 6, 2012
  5. Statics

    A power company takes a random sample of its delinquent account files. For 400 accounts, the average delinquent amount was $239.30 with a standard deviation of $14.52. With 99% probability, determine the maximum error of the estimate for the mean of all

    asked by Heather on December 1, 2012
  6. Human Resource Management

    Select an industry that you would like to examine in depth. Consider the HR department and its function within organizations that operate in that industry. Write a 1,400-2,100-word paper in which you identify five major HR challenges either currently

    asked by Donna Hughes on October 22, 2006
  7. Chemical Engineering

    High-pressure helium is available from gas producers in 0.045-m^3 cylinders at 400 bar and 298 K. Calculate the explosion equivalent of a tank of compressed helium in terms of kilograms of TNT. Assume helium is an ideal gas

    asked by Anonymous on March 18, 2015
  8. Chemical Engineering

    High-pressure helium is available from gas producers in 0.045-m^3 cylinders at 400 bar and 298 K. Calculate the explosion equivalent of a tank of compressed helium in terms of kilograms of TNT. Assume helium is an ideal gas

    asked by Anonymous on March 18, 2015
  9. Physics

    A box of books weighing 290 N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 35.1° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move

    asked by Anonymous on September 25, 2013
  10. Physics

    A box of books weighing 290 N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 35.0° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move

    asked by Seth on October 2, 2011
  11. math

    a store recorded net sales of 423,400 for the year.the store's beginning inventory at retail was105,850 and it's ending inventory was127,020. what would be the inventory turnover at retailrounded to the nearest tenth? i have no idea what i am doing.

    asked by rose on February 6, 2011
  12. economics

    Suppose that the company Mama's Pies adds another store to sell its pastries. Supposed that it costs $400,000 to build the new store and assume that the new store will generate revenues of $450,000. What is the rate of return on this investment?

    asked by marry on February 14, 2012
  13. math

    Larry and Shamir want to build identical houses. They bought a rectangular piece of land and divided it into two identical squares.Each square piece of land has a area of 2500 meter squared. What is the perimeter of the original rectangle?

    asked by Eugene on April 9, 2013
  14. math

    Moffett’s Candy Factory makes candy in the shape of cylinders. The net of a cylindrical piece of candy is shown below. two circle with diameter of 4cm each and a rectangle with a lenght of 1.5 cm wha is the total surface area of this piece of candy?

    asked by leo on January 19, 2014
  15. Physics

    An airplane is circling an airport by traveling a horizontal circular path at a speed of 400 km/h. The bank angle of the wings is 20 degrees. What is the radius of the circular path the plane is flying? I honestly do not know where to start this. And it is

    asked by Michael on November 13, 2015
  16. algebra 2

    The MePhone, a new smartphone, is being introduced in the Louisville area. The manufacturer plans to sell 30,000 phones during the first week and expects sales to increase by 8% each week after that find the equation, determine if its aritmetic or

    asked by gab on July 23, 2012
  17. physics

    On its highest power setting, a microwave oven increases the temperature of 0.400 kg of spaghetti by 45.0 °C in 120 s. The specific heat of spaghetti is 3760 J/kg °C and the microwaves are absorbed over a circular area 20.0 cm in diameter. What is the

    asked by carolyn on November 27, 2015
  18. economics (4)

    Assume that the following data describe the condition of the banking system: Total reserves $200 billion Transactions deposits $800 billion Cash held by public $400 billion Reserve requirement 0.20 By how much could the banks increase their lending

    asked by Mia on May 1, 2014
  19. Economics (4)

    Assume that the following data describe the condition of the banking system: Total reserves $200 billion Transactions deposits $800 billion Cash held by public $400 billion Reserve requirement 0.20 By how much could the banks increase their lending

    asked by Mia on May 1, 2014
  20. economics (4)

    Assume that the following data describe the condition of the banking system: Total reserves $200 billion Transactions deposits $800 billion Cash held by public $400 billion Reserve requirement 0.20 By how much could the banks increase their lending

    asked by Mia on April 30, 2014
  21. physics

    A diffraction grating having 180 lines/mm is illuminated with a light signal containing two wavelengths, λ1 = 400 nm and λ2 = 500 nm. The signal is incident perpendicularly on the grating. What is the smallest angle at which two of the resulting maxima

    asked by dani on May 24, 2016
  22. Physics

    Charlie takes his 6000 kg avalanche truck and runs it into Jill's 2003 Chevy Trailblazer. If Jill's truck is red, how does the force acting on Charlie's truck compare to the force acting on Jill's truck?

    asked by Diana on November 29, 2011
  23. Physics

    Charlie takes his 6000 kg avalanche truck and runs it into Jill's 2003 Chevy Trailblazer. If Jill's truck is red, how does the force acting on Charlie's truck compare to the force acting on Jill's truck?

    asked by Diana on November 29, 2011
  24. Physics

    Charlie takes his 6000 kg avalanche truck and runs it into Jill's 2003 Chevy Trailblazer. If Jill's truck is red, how does the force acting on Charlie's truck compare to the force acting on Jill's truck?

    asked by Diana on November 29, 2011
  25. Physics

    Charlie takes his 6000 kg avalanche truck and runs it into Jill's 2003 Chevy Trailblazer. If Jill's truck is red, how does the force acting on Charlie's truck compare to the force acting on Jill's truck?

    asked by Diana on November 29, 2011
  26. maths

    Three girls, Ishita Isha and Nisha are plyaing a game by standing on a circle of radius 20 m drawan in a park. Ishita throws a ball to Isha Isha to Nisha and Nisha to Ishita. if the distance between Ishita and Isha and between Isha and Nisha is 24 m each

    asked by Anonymous on February 2, 2015
  27. Art

    Writeacher, could you please check these sentences? Thanks. 3) It takes him half an hour to drive to school. 4)He has called the wrong number. 5) He paid 300 Euros for his wedding’s suit. 6) I phoned Mary yesterday morning. He started reading his new his

    asked by John on May 14, 2012
  28. math

    A storage area measures 15.6 feet by 10.2 feet by 8.5 feet. If it is 1/3 full, how many cubic feet of storage space remains (rounded to the nearest cubic foot)?

    asked by lamedia on July 12, 2012
  29. Algebra

    Diagonal brace. The width of a rectangular gate is 2 meters (m) larger than its height. The diagonal brace measures sqrt6m. Find the width and height.

    asked by Sandra on July 23, 2009
  30. math 4th grade

    the land area of a country with 20 people per square kilomoter or the land area of a country that measures 500,000 square kilometers can anyone explain how to do this

    asked by daniel on June 26, 2013
  31. Math

    Two complementary angles, A and B, have measures in the ratio of 7 to 23, respectively. What is the ratio of the measure of the complement of angle A to the measure of the complement of angle B? Express your answer as a common fraction.

    asked by G on March 4, 2015
  32. Math

    The ages in years of the houses on Kelly's block are: 20,26,11,2,28,18,2,27. Find the mean, median and the mode. Mean: 16.6 Median: 18.20 Mode: 2 Which measures should I use to represent the ages of the houses? Explain.

    asked by Geneva on October 7, 2014
  33. 7th grade

    At a certain time of day, a person's shadow is twice her height. What ratio describes this relationship? At this time of day, Gene's shadow measures 320cm. What is his height?

    asked by amanda on October 27, 2008
  34. Math

    Mr Howard is laying sod down in the his yard to create a new lawn. Each piece is 1 foot by 1 foot. How many pieces will Mr. Howard need if his yard measures 30 feet by 25 feet?

    asked by Anonymous on November 7, 2016
  35. math 4th grade

    the land area of a country with 20 people per square kilomoter or the land area of a country that measures 500,000 square kilometers can anyone explain how to do this

    asked by daniel on June 26, 2013
  36. MATH

    .In

    asked by Anonymous on April 2, 2015
  37. math 4th grade

    the land area of a country with 20 people per square kilomoter or the land area of a country that measures 500,000 square kilometers can anyone explain how to do this

    asked by daniel on June 26, 2013
  38. English

    Can someone check if the following prepositions/verbs are correct? Thanks 1) I couldn’t help CRYING 2) It’s no use EXPLAINING it to him; he won’t understand. 3) He was seen TO the watch. 4) I can’t afford TO BUY it. 5) Norma is anxious ABOUT making

    asked by Frank on February 14, 2014
  39. math

    1.A ball is dropped from a height of 2.0, to a floor. After each bounce, the ball rises to 63% of its previous height What is the total vertical distance the ball has travelled after 5 bounces? 2.An oil produces 25000 barrels of oil durign its first month

    asked by Steph on November 2, 2008
  40. physics

    A massless string runs around two massless, frictionless pulleys. An object with mass m = 20 kg hangs from one pulley. A force F is exerted on the free end of the string to lift the object at a constant speed by a distance of 2.3 m. What is the work done

    asked by m2a on November 16, 2009
  41. Math

    The following data shows the number of potatoes in twenty 2 kg bags. One graph represents Farm A, the other represents Farm B Farm A: 8,9,11,13,13,16,19,19,19,20,21,21,23,25,26,27,30,31,33,33 Farm B:

    asked by Lilly on April 10, 2018
  42. math

    Toby is making a scale model of the battlefield at Fredericksburg. The area he wants to model measures about 11 mi by 7.5mi. He plans to put the model on a 3.25 ft by 3.25ft square table. On each side of the model he wants to leave at least 3 inches

    asked by greg on November 30, 2012
  43. math

    Toby is making a scale model of the battlefield at Fredericksburg. The area he wants to model measures about 11 mi by 7.5mi. He plans to put the model on a 3.25 ft by 3.25ft square table. On each side of the model he wants to leave at least 3 inches

    asked by greg on November 30, 2012
  44. Math

    The following data shows the number of potatoes in twenty 2 kg bags. One graph represents Farm A, the other represents Farm B Farm A: 8,9,11,13,13,16,19,19,19,20,21,21,23,25,26,27,30,31,33,33 Farm B:

    asked by Lilly on April 11, 2018
  45. physics

    A pulley is attached to the ceiling (as shown in the figure below). Spring scale A is attached to the wall and a rope runs horizontally from it and over the pulley. The same rope is then attached to spring scale B. On the other side of scale B hangs an W =

    asked by mayrel on February 17, 2011
  46. Calculus

    Could someone help me with these questions. If an equation s(t)=t^3 - 2t^2 + 1 describes an object's motion in metres, at what time t, in seconds, will the object be stationary? a) 1s b) 0s and 4/3s c) 0s d) 4/3s -------------------------------------- A

    asked by Jessica on March 4, 2012
  47. Calculus

    Could someone help me with these questions. If an equation s(t)=t^3 - 2t^2 + 1 describes an object's motion in metres, at what time t, in seconds, will the object be stationary? a) 1s b) 0s and 4/3s c) 0s d) 4/3s -------------------------------------- A

    asked by Jessica on March 4, 2012
  48. Preclc

    To measure the height of the cloud cover at an airport, a worker shines a spotlight upward at an angle 75° from the horizontal. An observer D = 600 m away measures the angle of elevation to the spot of light to be 45°. Find the height h of the cloud

    asked by meridath on March 27, 2017
  49. math

    Each year a growing tree adds a new ring to its section some years the ring is thicker than others why do you suppose this happens? Suppose the average thickness of growth rings in the Flintstones national forest is 0.5cm about how old is old Fred a famous

    asked by maria on August 23, 2012
  50. Physics - Center of Mass

    A square aluminum plate (volume mass ρ = 2700 kg/m^3) has dimension L = 4.8 m and e = 0.9 m. A cylinder of radius R = 1.5 m and at a distance d = 1.2 m from the center of the plate and at 20 deg with the horizontal, is removed from the plate. Find the

    asked by Kid on August 28, 2017
  51. science

    Mary and Tom park their cars in an empty parking lot with n >_ 2 consecutive parking spaces (i.e, spaces in a row, where only one car fits in each space). Mary and Tom pick parking spaces at random. (All pairs of parking spaces are equally likely.) What is

    asked by dell on February 6, 2014
  52. Chemistry

    You weigh out 10.000 g of a mixture of NaHCO3 and Na2CO3 and add an excess of HCl. After the reaction is over, you evaporate off the water and collect the solid, which is found to weigh 9.400 g. How many grams of the original mixture were NaHCO3?

    asked by Vova on November 9, 2010
  53. chemistry

    A 2.30 mole quantity of NOCl was initially in a 1.50 L reaction chamber at 400°C. After equilibrium was established, it was found that 20.0 percent of the NOCl had dissociated: 2NOCl(g) 2NO(g) + Cl2(g) Calculate the equilibrium constant Kc for the

    asked by Anonymous on March 17, 2011
  54. Chemistry

    It took 400 calories of heat to raise 50 mL of water from 20 degrees Celsius to its final temperature. What was that temperature? Ok I understand the equation q=mass x SH x change in temp. I am lost on how to set it up to find my final temp. Please help.

    asked by Shambrey on March 14, 2011
  55. math

    Art Conn bought a used car for $600 and sold it to Hardy Pyle for $800. He later bought it back for $800 and resold it for $1000. Did Art make a profit, if so how much? Is the correct answer yes $400?

    asked by Jas on May 15, 2008
  56. math

    jay corp. bought machine for 15000. machine is expected to produce 10000 units. machine has residual value of 5000. assuming machine produces 400 units during year 1.what should depreciation expense be

    asked by bart on June 3, 2013
  57. Chemistry

    You weigh out 10.000 g of a mixture of NaHCO3 and Na2CO3 and add an excess of HCl. After the reaction is over, you evaporate off the water and collect the solid, which is found to weigh 9.400 g. How many grams of the original mixture were NaHCO3?

    asked by Vova on November 9, 2010
  58. Maths

    Mortgage company lets you pay a point (1% of total amount of loan)to reduce APR from 6.5% to 6.25% on a $400,000 30-yr mortgage with monthly payments. Plan to be in house for at least five years. Should you pay the point?

    asked by Sejul on February 13, 2014
  59. Geometry

    In Parallelogram PARK, angle P = (7x) degree angle A = (3x - 20) degree angle K = (5y - 10) degree. What is x + y?

    asked by Angel on November 12, 2016
  60. Geometry

    In Parallelogram PARK, angle P = (7x) degree angle A = (3x - 20) degree angle K = (5y - 10) degree. What is x + y?

    asked by Anonymous on November 12, 2016
  61. Personal Finance

    Please post a 150-300 word response to the following discussion question by selecting Reply: · What does it mean to have insurance? Choose two types of insurance (auto, home, health, disability, or life insurance) and identify one characteristic of each.

    asked by Camille on August 15, 2011
  62. math

    using fifo method what is the dollar value on ending inventory if ther was 380 videos games on hand. may 14, 100 units @ 8.00 1,600.00 aug 27, 250 units @ 9.00 850.00 nov 18, 300 units @ 8.75 2,625.00

    asked by Carolyn on July 30, 2010
  63. chemistry(Bsc)

    HI i am not able to get the answer, can you help please...Here is the quest. At 700K and 300 atm, the density of water vapour is 0.188g/cm3. Evaluate the compression factor for water volume in this state. Molar heat of water=0.018016KJ/mol.

    asked by joys on September 21, 2009
  64. English

    Well, can you walk my dog? You can take her to the park. Answer 1. No problem, but I'm very busy today. Answer 2. Sure, I will, but I'm very busy today. Answer 3. Don't worry, but I'm very busy today. Answer 4. I think I can, but I'm very busy today.

    asked by rfvv on June 23, 2014
  65. math

    what is the sum of all consecutive numbers from 101 to 200, those two numbers inclusive? Halfway between, is 150. Then add 149+151,thence 148+152, and so on till 101+199. Each instance you have 300. So it seems to me... Sum= 200 + 150 + 300*N, where N is

    asked by james on July 7, 2007
  66. 5th grade math

    a new fence is needed for the perimeter of a rectangular horse pasture. The pasture measures 78 feet by 68 feet. how many feet of fencing are needed for the pasture? CAN YOU SHOW TO WORK THIS PROBLEM>?

    asked by pat on January 19, 2011
  67. math

    Mr.perez is trying to move a circular folding table with a 4 foot radius through a window that measures 5 ft by 3 ft. He plans to lean the table over and move it through the diagonal of the window. Will the table go through the window?

    asked by Help on May 1, 2011
  68. MATH

    Many people are interested in losing weight through exercise. An important fact to consider is that a person needs to burn off 3,500 calories more than he or she takes in to lose 1 pound, according to the American Dietetic Association. The following table

    asked by P on September 26, 2009
  69. math

    Many people are interested in losing weight through exercise. An important fact to consider is that a person needs to burn off 3,500 calories more than he or she takes in to lose 1 pound, according to the American Dietetic Association. The following table

    asked by p on September 26, 2009
  70. calculus

    A front window on a new home is designed as a rectangle with a semicircle on the top. If the window is designed to let in a maximum amount of light, and the architect fixes the perimeter of the entire window at 600 inches, determine the radius r and

    asked by Cvan on December 29, 2011
  71. math

    Please show all of your work in the space below. Please present and organized and complete solution. A garden will be made up of a parallelogram, a rectangle and a triangle. The garden must have an area of 500m square. Draw two possible gardens. Determine

    asked by jhon on November 22, 2013
  72. math

    M and N are the midpoints of the sides of a square. What is the ratio of the area of triangle AMN to the area of the complete square? But the answer has to be in a ratio which is the area of a triangle to the area of the complete square. Also the triangle

    asked by alandra on May 19, 2012
  73. math

    You play video games online. When you sign up with the game site, you get 400 points. You earn 50 more points for each hour that you play. How many hours do you have to play to get to 1,000 points

    asked by curtis on April 23, 2019
  74. boiling point determination

    Explain why a rapid stream of bubbles comes out of the bell tube as the sample reaches its boiling point temperature? Explain why liquid runs up the empty bell tube as the sample is cooled back down to its boiling point temperature?

    asked by alex034 on September 26, 2017
  75. Physics

    A 1.40- block is on a frictionless, 20 inclined plane. The block is attached to a spring ( = 40.0 ) that is fixed to a wall at the bottom of the incline. A light string attached to the block runs over a frictionless pulley to a 60.0- suspended mass. The

    asked by Anonymous on June 5, 2013
  76. English

    1. Part A-which pair of words best describes the speaker's attitude toward elements of nature in "wind and water and stone"? A. ignorant and uncaring B.joyful and loving C.angry and scared D.calm and accepting*** Part B-Which line from the poem best

    asked by Anonymous on February 15, 2018
  77. Finance

    Geisinger Health Plan has asked your hospital to provide all of its obstetric services. It has offered to pay your hospital $2,000 for a normal vaginal delivery (DRG 373), without complications. You have reviewed the standard treatment protocol for this

    asked by Karam on June 24, 2011
  78. Algebra

    I have to explain how I might apply rational expression to my everyday life. I have to explain the application and discuss what the equation might be. Is this a good example? You go shopping for a big flat-screen HDTV. They always measure TVs diagonally,

    asked by Jess on June 22, 2007
  79. Math

    If you are flying to a city 400 miles away, what will be the difference in flight times between flying into a 40-mph headwind and flying with a 40-mph tailwind if the plane's maximum speed with no wind is 160 mph?

    asked by Megan on March 22, 2017
  80. math

    A support wire runs from the top of a tower to the ground. If the tower is 1200 feet tall and the wire is attached to the ground 500 feet away from the tower, how long is the support wire?

    asked by Marissa on November 20, 2013
  81. English

    Bingo Game 2 Hello, class. Let's play the bingo game. Look at the bingo board in Part C. There are three expressions in the three blanks. There are six empty blanks. Look at the expressions on the left of the bingo board. There are 6 expressions. You

    asked by John on September 4, 2008
  82. Mathematics and investment

    1. Angelo wants to renovate his house in 3 years. He estimates the cost 300,000. How much must Angelo invest now at 8% compounded quarterly in order to have 300,000 3 years from now. 2. Angelo Ancis want to save 500,000 in 5.5 years to renovate their rest

    asked by mezell on September 23, 2014
  83. Java

    Can someone please help me out!!!I included what I have so far.. *Purpose: Say that you owe the credit card company $1000.00. The company charges you 1.5% per month on the unpaid balance. You have decided to stop using the card and to pay off the debt by

    asked by Railly on November 26, 2007
  84. Spanish

    what is the difference between a plaza in a spanish speaking country and one in los estados unidos? a. in los estados unidos, a plaza does not serve a social purpose b. in los estados unidos, only small towns have plazas c. in los estados unidos, a plaza

    asked by Kaai97 on January 6, 2016
  85. psychology

    Kayla is curious about objects and activities, like climbing walls, drinking at a fountain, and playing at the park. However, Kayla’s mother hovers over her, clearly worried about her safety and restricting her exploration and play. According to Erikson,

    asked by Tami on July 17, 2010
  86. math

    How do you find the perimeter of a polygon? And how is finding the perimeter of a rectangle different fro finding the perimeter of other polygons?

    asked by dawn on September 24, 2008
  87. bean

    each square on the grid represents 25 square units----draw a rectangle of 875 square units

    asked by y on July 24, 2014
  88. Math

    Point X is on side BC of rectangle ABCD. If AX = 5 units, XD = 12 units, and AD = 13 units, find the area of ABCD.

    asked by Mary on May 13, 2010
  89. 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

    asked by Joshua on December 2, 2016
  90. math word problem

    30 park visitors who played the same three games-the softball pitch, dart throw, and the ring toss. Every 5th person won at softball, every 10th person the dart throw, and every 15th person, the ring toss. How many of the 30 players won all three games?

    asked by Mary on March 27, 2008
  91. maths

    A coffee urn holds 12 litres when full. Harry fills coffee cups from the urn until the coffee runs out. A)How many 140ml cups of coffee can be filled from the urn? B)At the end there is not enough coffee left to fill a cup, Harry decides to drink it

    asked by Anonymous on February 24, 2011
  92. Maths

    A coffee urn holds 12 litres when full. Harry fills coffee cups from the urn until the coffee runs out. A)How many 140mls cups of coffee can be filled from the urn? B)At the end there is not enough coffee left to fill a cup, Harry decides to drink it

    asked by Anonymous on February 24, 2011
  93. Statistics

    Can someone help me do this problem? A group of environmentalist are trying to estimate the population of the state rid in clear view park. They capture a sample of 500 birds in early spring and tag them. in august they capture 215 birds, of which 20 are

    asked by Tina on December 12, 2013
  94. Physics

    In an old fashioned amusement park ride, passengers stand inside a 5.0-m diameter hollow steel cylinder with their backs against the wall. The cylinder begins to rotate about the vertical axis. Then, the floor that the passengers are standing on suddenly

    asked by Jacqui on October 12, 2009
  95. Physics

    1. A 55.0 kg pole vaulter running at 11.0 m/s vaults over the bar. Assuming that the vaulter's horizontal component of velocity over the bar is 1.0 m/s and disregarding air resistance, how high was the jump (include units)? 2. A 71 kg person rolls on a 2

    asked by Help!!!! on December 7, 2015
  96. Physics

    A car is going 18.3 m/s down a road. At time t=0s, a squirrel runs in front of the car 36 meters away. It takes the driver t=0.67s to slam on the brakes, but after that , the brakes offer a frictional force F(fr)=21000N. Her car masses at 1860 kg. a) How

    asked by Catherine on May 17, 2015
  97. Calculus

    A hot air ballon lifts off the earth 300m away from an observer and rises straight up at a rate of 80m/min. At what rate is the angle of inclination of the observers line of sight increasing at the time the balloon is 300, above the ground?

    asked by Chris on January 29, 2015
  98. physics

    A closed 2.0-L container holds 3.0 mol of an ideal gas. If 200 J of heat is added, what is the change in internal energy of the system? A. 300 J B. 150 J C. zero D. 100 J E. 200 J -Since there is no mention of work being done I thing the answer is 200J but

    asked by Idali on April 4, 2017
  99. maths

    at a given instant two cars are at distances 300 and 400m from the point of intersection O oftwo straight roads crossing at a right angle and are approaching O at uniform speeds of 20 and 40m/s respectively. find the shortest distance between the cars and

    asked by samuel on June 24, 2012
  100. Math

    Find the missing term ___,180,30,5 A) 1080 B) 900 C) 300 D) 210 Evaluate the expression 4(x+8) for x= 6 A) 14 B) 32 C) 48 D) 56 The cost of a school banquet is $75+30n, where n is the number attending. What is the cost for 53 people? A) $1,590 B) $4,005 C)

    asked by Halp plzzzzzzzzzzzz on September 19, 2018