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  1. physics

    please check: Two point charges, initially 1 cm apart, are moved to a distance of 3 cm apart. By what factor do the resulting electric and gravitational forces between them change? a. 9 b. 3 c. 1/3 d. 1/9 D Two positive charges, each of magnitude q, are on

  2. Life orientation

    Discuss four ways in which one's acceptance of responsibility can influence effective communication

  3. Calculus

    A rectangular trough is 8 feet long, 2 feet aross the top and 4 feet deep, if water flows in At a rate of 2 cubic feet per minute. How fast is the surface rises when the water is 1 feet deep.?

  5. physics

    An 8.00kg package in a mail-sorting room slides 2.00 m down a chute that is inclined at 53.0 degrees below the horizontal. The coefficient of kinetic friction between the package and the chute's surface is 0.400. Calculate the work done on the package by

  6. brilient stars

    the temperature at 12 noon was 15 degree C above zero. if it decreases at the rate of 3 degree C per hour until midnight , at what time would the temperature be -3 degree C ? what would be the temperature at midnight

  7. Science

    The solubility of CO2 in water at 25 degree celsis and 1 atm is 0.034 mol/L . what is the solubility under atmospheric condition? Assume that CO obeys henry's law. ( the partial pressure of CO2 in air is 0.0003 ATM

  8. business

    By the conditions of a will, the sum of P25,000 is left to a girl to be held in trust by her guardian until it amounts to 45,000. when will the girl receive the money if the fund is invested at 8% compounded quarterly?? please show the solution.. thank

  10. Precalculus check answers help!

    7.) Write the equation 3x + 4y – 7 = 0 in normal form. 3/5x + 4/5y + 7/5 = 0 -3/5x - 4/5y - 7/5 = 0 -3/5x - 4/5y + 7/5 = 0 ~ 3/5x + 4/5y - 7/5 = 0 8.)Write the standard form of the equation of a line for which the length of the normal is 4 and the normal

  11. Physics

    An aerialist on a high platform holds onto a trapeze attached to a support by an 8.0-m cord. (See the drawing.) Just before he jumps off the platform, the cord makes an angle of 41° with the vertical. He jumps, swings down, then back up, releasing the

  12. Lmss

    "Is evil then triumphant "Do you think this Statement hold any truth in the present day context?justify with atleast four points .

  13. Chemistry

    If an 0.650 m aqueous solution freezes at –2.00 °C, what is the van't Hoff factor, i, of the solute? Kf values can be found here. the Kf value is 1.86 °C/m. I get 2 for the answer but it is wrong. Please help!

  15. geometry

    An equilateral triangle has sides that measure 5x+3 units and 7x-5 units. What is the perimeter of the triangle?

  16. English grammar

    Which of the following is a simple sentence? a) He ran fast but he failed to win the prize. b) Although he ran fast he failed to win the prize. c) In spite of running past, he failed to win the prize. d) He failed to win the prize because he did not run

  17. Chemistry

    1)The chemical formula for aspirin is C9H8O4. What is the mass of 0.40 mol of aspirin? How would I find this? 2)The gram molecular mass of oxygen is 16.0 g right? 3)How would I find the mass, in grams, of 3.01 x 10^23 molecules of water? 1. Add the atomic

  18. Language arts

    Which definition describes dialogue? (1 point) when and where a story takes place the person telling the story a conversation between at least two people the order in which things happen

  20. MATH

    Calculate the area of the composite figure which is not drawn to scale. 17 cm 10 cm 22 cm 17 cm 19 cm the shape is a rectangle with a right triangle on its side

  21. Chem

    A patient receives 3.5 L of glucose solution intravenously (IV). If 100. mL of the solution contains 5.9 g of glucose (carbohydrate), how many kilocalories did the patient obtain from the glucose solution?

  22. life orientation

    How can advise my friend who responds to conflict by confrontation on why it is not healthy in sustaining positive relationships?

  23. math

    There were 15.37 million licensed drivers in Texas in 2009 and 14.54 million in 2004. Find a formula for the number, N, of licensed drivers in the US as a function of t, the number of years since 2004, assuming growth is (a) Linear N(t)= million drivers

  25. Physics

    A student performs a ballistic pendulum experiment using an apparatus similar to that shown in the figure. Initially the bullet is fired at the block while the block is at rest (at its lowest swing point). After the bullet hits the block, the block rises

  26. Physics

    A stretched string fixed at both ends is 2.0 m long. What are the three wavelengths that will produce standing waves on this string? Name at least one wavelength that would not produce a standing wave pattern, and explain your answer. I REALLY NEED HELP I

  27. Help Ms.Sue Please

    1.Find the lateral area of a cone with a radius of 7 ft. and a slant height of 13 ft. Use 3.14 for ð and round to the nearest tenth. 439.6 ft2 324.5 ft2 571.5 ft2 285.7 ft2 2.Find the surface area of a square pyramid with a base length of 24 cm and a

  28. Physics

    A 40 W (120V) light bulb has a tungsten filament of thickness 0.035 mm. The filament's operating temperature is 1500 degrees C. PART A How long is the filament? PART B What is the resistance of the filament at 20 degrees C?

  30. Physics EM

    An ammeter is connected in series to a battery of voltage V_b and a resistor of unknown resistance R_u The ammeter reads a current I_0. Next, a resistor of unknown resistance R_r is connected in series to the ammeter, and the ammeter's reading drops to

  31. Language arts

    Which element does figurative language rely on?(1 point) facts and details sources outside the story the reader's imagination dictionary definitions

  32. Math

    Amy is 5 feet tall. She places a mirror on the ground and moves until she can see the top of a nearby tree. At this point, she is 2 feet from the mirror. the tree is 48 feet from the mirror. How tall is the tree?

  33. Chem

    A patient receives 3.2 L of glucose solution intravenously (IV). If 100. mL of the solution contains 5.0 g of glucose (carbohydrate), how many kilocalories did the patient obtain from the glucose solution? *If anyone could help me with this, please show

  35. Physics

    A ruler is initially at rest when a student briefly exerts a downward force on the right end. The magnitude of the force exerted by the student is less than the weight of the ruler. Assume that the pivot point in the center of the ruler is frictionless.

  36. Math algebra

    Assume that the stopping distance of a van varies directly with the sqaure of the speed . A van traveling 40 miles per hour can stop in 60 feet. If the van is traveling 56 miles per hour, what is its stopping distance?

  37. math

    p varies directly as q and the square of r and inversely as s write the equation of the relation find k if p=40 q=5 r=4 s=6 find p when q=8 r=6 and s=9 find s when p=10 q=5 r=2

  38. Art

    What is one way that the industrial revolutions impact showed itself in the art of realist like Monet? A. Realists documented their inner reactions to the revolution B. realists documented the lives of rules and the wealthy C realists documented the

  40. Math

    1. Does the table represent an exponential function? X: 1, 2, 3, 4 Y:-1,-8,-27,-64 Yes or No? I am confused on this, so help would be nice. Thank you.

  41. math

    the average annual rainfall for a town is 43.2 inches. I know the monthly rainfall has to be 3.6 inches. the difference of a given month's rainfall from the average monthly rainfall is called the deviation. what is the deviation for each month shown? may 2

  42. Chemistry

    How much work must be done on a system to decrease its volume from 14.0 L to 5.0 L by exerting a constant pressure of 4.0 atm?

  43. Chemistry

    Citric acid, the compound responsible for the sour taste of lemons, has the following elemental composition: C{\rm C}, 37.51%\%; H{\rm H}, 4.20%\%; O{\rm O}, 58.29%\%.Calculate the empirical formula of citric acid

  45. PHYSICS

    A spring is hung from a ceiling, and an object attached to its lower end stretches the spring by a distance d = 7.70 cm from its unstretched position when the system is in equilibrium as in the figure below. If the spring constant is 48.0 N/m, determine

  46. statistics

    Three cards are drawn from a deck without replacement. Find these probabilities. a)all are jacks b)all are clubs c)all are red cards

  47. Physics

    A child's toy consists of a block that attaches to a table with a suction cup, a spring connected to that block, a ball, and a launching ramp. (Intro 1 figure) The spring has a spring constant k, the ball has a mass m, and the ramp rises a height y above

  48. Language arts

    What is the pacing of a story?(1 point) how fast a story moves the setting of a story how long a story is the major themes in a story

  50. Transition Words and Time Shifts Quick Check

    Which option describes a transition? a change from one setting or event to another What is the time frame of a narrative? a period during which events occur Which transition word or phrase tells the reader about the sequence of events? after that Which

  51. ELA

    Which option describes a narrator?(1 point) the events of a story the person telling the story the main idea of a story the location of the story PLS help ASAP

  52. Maths

    Rounding off 87392 to the nearest 1000

  53. Maths

    An aeroplane flies from a town x on a bearing of N45°E o another town y,a distance of 200km.it then changes course and flies to another town zon a bearing of s60°e.if z is directly east of x,calculate to correct 3significant figures, A.the distance of x

  55. Social Studies

    How did knowing how to cut and stack stones help early Andean civilizations grow?

  56. math

    What is the standard form of 4x²+4y²-20x+12y-2=0

  57. physics

    A race car moving with a constant speed of 60 m/s completes one lap around a circular track in 50 s. What is the magnitude of the acceleration of the race car?

  58. math

    use the points in the diagram to name the figure.

  60. Calculus

    Water is flowing into a vertical cylindrical tank at the rate of 24 cu. ft. per minute. If the radius of the tank is 4 feet, how fast is the surface rising? Thank You! :)

  61. Biology

    A farmer wants to propagate a good variety of a crop in a way which maintained all its desirable traits. Which of the following methods should be used? A. Self Pollination B. Vegetative propagation C. Growing seeds produced from this variety D.

  62. Statistics

    a manufacturing machine has a 8% defect rate. if 5 items are chosen at random, what is the probability that at least one will have a defect

  63. ENGINEERING GRAPHICS

    construct a right angled triangle MNO ,having hypotenuse ON = 60 mm and the sum of its base and its altitude = 55 mm.

  65. Math

    The heights of three plants A,B and C in a garden are in the ratio 2 : 3 :5. their mean height is 30cm a) find the height of plant b b) if another plant D is added to the garden and the mean height of the four plant is now 33cm , find the height of D plant

  66. life orientation

    discuss three ways in which one's acceptance of responsibility can influence effective communication

  67. Math

    The difference between three-fourths and three-fifths of a number is 9. Determine the number?

  68. math

    Every cereal box has a gift inside, but you cannot tell from the outside what the gift is. The store manager assures you that 16 of the 58 boxes on the shelf have the secret decoder ring. The other 42 boxes on the shelf have a different gift inside. If you

  70. science help

    Which process of the carbon cycle is responsible for the release of carbon at the power plant, as shown by the arrow? combustion. photosynthesis. digestion. decomposition. 941080532013105759am498923097.jpg copy and paste this and you will see the picture..

  71. Art.

    1. what is the role of an artist who creates a painting illustraiting a nations victory in war A. to solve a problem B. to glorify the nation. C. to protest the war D. to raise awareness of the war 2. The face that all Incan architecture shares similar

  72. Art

    How do landscape paintings convey the value and ideas of Chinese culture? 1.Landscape paintings show chaotic, and unhappy culture 2.Landscape Paintings reveal the importance of natural history to the Chinese 3.Landscape paintings show that Chinese desire

  73. Art Help!!! Thank you

    1.The Greek temple has often inspired the design of what type of American structure? A. amphitheater B. Colosseum C. courthouse D. Bridge Is the answer A?? Thanks in advance 2. Why might a college choose to use Greek architectural elements such as columns

  75. Health

    True or false: The endocrine system only regulates long term changes in the body? A. True *** B. False Which endocrine gland (s) are responsible for the changes associated with puberty? A. Thymus gland B. Reproductive glands *** C. Thyroid gland D.

  76. Science

    A student mixed two clear liquids together in a beaker and a solid precipitate formed. His data is shown in the table below. Liquid reactant A = 10 g Liquid reactant B = 17 g Beaker + solid product= 32 g What is the mass of the beaker? A. 5 g B. 10 g C. 15

  77. chemisrt

    The hemoglobin content of blood is about 15.4g/100mL blood. The molar mass of hemoglobin is about 64500 g/mol, and there are four iron (Fe) atoms in a hemoglobin molecule.Approximately how many Fe atoms are present in the 6 L of blood in a typical adult?

  78. math

    Yasmin wants to serve 150ml of juice to each of 15 guests. How many 500ml cartons of juice she buy? How much juice will she be left after serving her guests?

  80. statistics

    A committee of three people is to be formed. The three people will be selected from a list of five possible committee members. A simple random sample of three people is taken, without replacement, from the group of five people. Using the letters A, B, C,

  81. The Power of Media

    #1. Which of the following is an example of a print medium? a) a blog b) a newspaper c) a magazine’s website d) all of the above ******* #2. Which of the following is an example of a public service announcement, or PSA? a) a commercial advertising an

  82. physics

    An object moves along a circular path with a constant speed, |⃗vo|. (Semi Circle with point A on one side point B on the other. Looks like a 90 degree angle with points A and B on either side of the hypotenuse.) The average acceleration in going from A

  83. Chemistry

    What volume of a 0.50 M solution of H2SO4 is required to completely neutralize 3.0 grams of NaOH? Write the equation.

  85. CHEMISTRY!!!=0

    Determine pH of each solution: b) 0.20 M CH3NH3I I did.... CH3NH3^+ +H2O -> CH3NH2 + H3O^+ 0.20 ---------------0--------------0 0.20-x--------------x------------x so i got... ? =x^2/0.20-x i looked up in the back of the book and found the Kb of CH3NH2 to

  86. Chemistry

    Express the concentration of a 0.0510 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the desnity of the solution is 1.00 g/mL Since, we're assuming the density I think that also means were assuming the volume.. but

  87. physics

    During the first 18 minutes of a 1.0-hour trip, a car has an average speed of 11 m/s. What must the average speed of the car be during the last 42 minutes of the trip be if the car is to have an average speed of 21 m/s for the entire trip?

  88. Math

    Find the maximum area of a triangle formed in the first quadrant by the x-axis, y-axis, and a tangent line to the graph of y = (x+1)^-2

  90. geometry

    In triangle ABC, BC=40m , AB=50m and Angle A=53 degree. Determine the area of a triangle.

  91. Chemistry

    SO2(g) + NO2(g) SO3(g) + NO (g) At a given temperature, analysis of an equilibrium mixture found [SO2] = 4.00 M, [NO2] = 0.500 M, [SO3] = 3.00 M, and [NO] = 2.00 M. (a) What is the new equilibrium concentration of NO when 1.50 moles of NO2 are added to the

  92. Physics

    A simple pendulum consists of a 3 kg point of mass hanging at the end of a 2 m long light string that is connected to a pivot point. a. Calculate the magnitude of the torque (due to gravitational force) around this pivot point when the string makes a 5

  93. math

    Sebastian has 12 more trophies than Megan. Megan has trophies.

  95. Language arts

    Which type of language should a writer use to describe something accurately?(1 point) figurative precise brief formal

  96. Language arts

    Which description defines a sequence of events?(1 point) jiskha the person writing down what happens the place and time in which things happen the order in which things happen the people making things happen

  97. connotation/denotation

    Question 1 The men in the restaurant chatted about their dogs. Which word has a similar connotation and denotation to the word chatted as it is used in the sentence? lectured shouted talked XXX argued Question 2 A) Use the sentence to answer the question.

  98. Conexus language arts

    Which term describes a general relationship between a group of words or ideas?(1 point) A: synonym B: analogy*** C: antonym D: degree

  100. Language Arts

    This is Connexus 7B Language Arts: Analogies Quick Check 1. Which of the following is the best definition of an analogy?(1 point) comparing synonyms and antonyms identifying differences in words*** showing a similarity between unlike things organizing

  101. Chemistry

    Electron Configuration for mo2+

  102. precalculus

    Let f(x)=4√x If g(x) is the graph of f(x) shifted up 3 units and right 2 units, write a formula for g(x). g(x)=

  103. chemistry

    Calculate the energy needed to heat the cube of silver, with a volume of 19.0 cm3 , from 15 ∘C to 28 ∘C

  105. math

    The graph below shows the average daily temperature over the period of a year. Explain how each labeled section of the graph relates to the four seasons. the gragh is like - -------------- -- -- --------- ------------------------- so like connect the dots

  106. Mathematics

    1. Find the circumference of the given circle. Round to the nearest tenth. (Circle with radius of 3.5 cm) -22.0 cm -38.5 cm -11.0 cm -42.8 cm 2. Find the area of the given circle. Round to the nearest tenth. (Circle with a diameter of 12 feet) -11.0 ft

  107. English

    I am sure I would have regretted it if I ________ to take the job. a.would agree b.would have agreed* c. did agree d.had agreed*

  108. Calculus

    The base of a solid is the circle x^2 + y^2 = 9. Cross sections of the solid perpendicular to the x-axis are squares. What is the volume, in cubic units, of the solid? A. 18 B. 36 C. 72 D. 144 Please help. Thank you in advance.

  110. Calculus

    Find the point(s) of intersection for the polar curves with equations r = 6 cos θ and r = 4 − 2 cos θ. a) π/6,-π/6 b) π/3,-π/3 c) π/2,-π/2 d) 0,π

  111. Social studies

    What was one effect of the development of agriculture in South America? A. More people moved to the Grand Chaco. B. Groups began to settle in one place.*** C. People had less food to eat. D. People wore more animal skins and furs.

  112. Math

    what is the factored form of q^2-12q+36 I need all the answers to algebra b unit 3 lesson 7 test

  113. Social Studies

    Which list shows the correct order in which some peoples in South America began to build a more stable food supply? A. domesticate animals; cultivate crops; hunt, fish, and gather plants; modify landscape to support settlements B. modify landscape to

  115. math

    Determine if the Mean Value Theorem for Integrals applies to the function f of x equals the square root of x on the interval [0, 4]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem.

  116. Calc 3

    Jessica and Matthew are running toward the point P along the straight paths that make a fixed angle of θ (Figure 1). Suppose that Matthew runs with velocity va (m/s) and Jessica with velocity vb (m/s). Let f(x,y) be the distance from Matthew to Jessica

  117. Home economics

    List and explain all the subjects related to home economics

  118. Math please help

    So I have this question and I don't understand Find the missing number. 32/52 ?/13 A.) 9 B.) 4 C.) 7 D.) 8 so can anyone help me please

  120. Maths

    Of 20 girls 16 plays hockey,12 plays tennis and 4playsbusket every girl plays at least one game and 2plays all the three games how many plays 2and only 2games

  121. Math

    Calculate the area of the composite figure, which is not drawn to scale. 17cm 10cm 22cm 17cm 19cm.! I have an answer but I was told by my teacher it was wrong, If anyone could give me the steps to solving it I'll be perfectly happy! :-) thank you

  122. Physics

    A thin copper rod 1m long has a mass of 50g. What should be the direction of magnetic field and the maximum current in the rod that would allow it to levitate above the ground in a magnetic field of 0.1T.

  123. Math

    Mario’s Pizzeria bakes olive pieces in the outer crust of its 20-inch (diameter) pizza. There is at least one olive piece per inch of crust. How many olive pieces will you get in one slice of pizza? Assume the pizza is cut into eight slices.

  125. Math

    1. which solid has a base that is a triangle and three lateral surfaces that are triangles? A) Triangular Pyramid *** B) Triangular Prism C) Rectangular Prism D) Rectangular Pyramid 2. A solid with at most one base cannot be which of the following? A) Cone