# priya

Popular questions and responses by priya
1. ## PHYSICS

An automobile battery has an emf of 12.6 V and an internal resistance of 0.0500 . The headlights together present equivalent resistance 5.60 (assumed constant). (a) What is the potential difference across the headlight bulbs when they are the only load on

2. ## Physics

The vector sum of two vectors of magnitude 10 units and 15 units can never be A) 28 units B) 22 units C) 18 units D) 8 units

Determine the value of k for which the function f(x)= 4x^2- 3x+2kx+1 has two zeros. check these values in the original equation? i cant figure out the answer to it. It says in the book that it is k 3.5,but i don't know how they got it.

4. ## physics

a wheel starts from rest on application of torque which gives it an angular acceleration @=2t^2-t^2 for first two seconds after which @= 0 then find angular velocity of wheel after 4 seconds.

5. ## Chemistry

Magnesium metal reacts with hydrochloric acid to form magnesium chloride and hydrogen gas. Suppose we react an excess of magnesium metal with 13.2 mL of a 3.00 M solution of hydrochloric acid and collect all of the hydrogen in a balloon at 25oC and 1.00

6. ## orgenic chemistry

which starting material is the limiting reagent in this procedure? which reagent is used in excess?How great is the molar excess(how many times greater)?

7. ## Chemistry

If in the given reaction, 3I 2 + OH- ---> IO3 - + 5I- 2 moles of iodine are taken, then the ratio of iodate and iodide ions formed in the alkaline medium is

8. ## Chemistry

Copper (I) chloride, CuCL, has Ksp = 1.9 x 10^ -7.calculate the molar solubility of CuCL in A)pure water, B)0.0200M HCl solution C) 0.200M HCl solution, and d) 0.150M CaCl2 solution. I used the ice table and for a) i got 0.000435 M sort of lost for the

9. ## Chemistry 2

If a gaseous sample contains 74% N2 by volume, what is the solubility of N2 in water at 25°C and 1.0 atm (kH in H2O at 25°C = 7.0 10-4 mol/Latm)?

10. ## math

factor x^4-3x^3-11x^2+3x+10 completely using the factor theorem.

Determine two angles between 0°and 360°that have a secant of -4. Round your answers to the nearest degree. There are tw answer 104°( I got this one but there is also 256° I don't have anyidea for this one please explain to me I appreciate your time

12. ## MATH

In Triangle ABC, medians BE and CD are produced respectively to points X and Y such that CD=DX and BE=EY as shown in the figure. Show that the points X, A and Y are collinear. Also show that A is the mid point of XY

13. ## science

The work done by 500 calories of heat in isothermal expansion of ideal gas is?

14. ## Shegal

Three identical metal spheres are hung from a ceiling on rigid non-conducting rods. Sphere 1, sphere 2, and sphere 3 have charges 75 µC, −44 µC, and 50 µC, respectively. Each sphere is separated by 0.15 m. What is the net electric force on the middle

15. ## Math

Supplier on-time delivery performance is critical to enabling the buyer’s organization to meet its customer service commitments. Therefore, monitoring supplier delivery times is critical. Based on a great deal of historical data, a manufacturer of

16. ## science

Urea forms a ideal solution in water. Determine the vapour pressure in an aqua solution containing 10 percent bymass at 40degree Celsius

17. ## Maths

There are 50 students in a class of which 40 are boys and the rest are girls the average weight of the class is 44kg and the averageweight of the girls us 40kg. find the average wieght of the boys

18. ## arithmetic

The ratio of the sum of the first 8 terms of a G.P. to the sum of the first 4 terms of the same G.P. is 97:81, where the common ratio of the G.P. is a real number. What is the common ratio?

19. ## bio

How is the oxygen production in 30 seconds related to the rate of the reaction?

Determine two angles between 0°and 360°that have a secant of -4. Round your answers to the nearest degree. There are tw answer 104°( I got this one but there is also 256° I don't have anyidea for this one please explain to me I appreciate your time

21. ## finance

You want to accumulate \$1,000,000 in retirement funds by your 65th birthday. Today is your 30th birthday, and you plan on making annual investments into a mutual fund that you project will earn a 10% annual rate of return. Your first deposit will take

22. ## maths

Convert in improper fraction 6 5/12

23. ## English

discuss the current state of the field of early childhood care and education from your own perspective. In this field, what does it mean to be a professional and what does it mean to be in a profession? Include a component of political analysis in your

24. ## physics

The quantity of charge q (in coulombs) that has passed through a surface of area 2.08 cm2 varies with time according to the equation q = 4t3 + 5t + 6, where t is in seconds. (a) What is the instantaneous current through the surface at t = 1.08 s? (b) What

25. ## Healthcare Finance

accounting practices within health care organization

If the given point is on the terminal arm of an angle A in stadard position. 0 degrees more than or equal too A and less than or equal too 180 degree, find sin A and cos A: a) (6,8) b) (-5,12) Can you tell me how you get it because I do not understand it

27. ## AP calculus AB

How does Limit as delta x approaches 0 = 4x + 2deltax +1 simplify to 4x +1? I'm supposed to find the derivative using the limiting process orig equation: f(x) 2x^2+x-1

A quadratic function is defined by f(x)= 3x^2+4x-2. A linear function is defined by g(x)= mx-5. what values(s) of the slope of the line would make it a tangent to the parabola.

29. ## chemistry

Given one of the starting materials and end product for the following reaction, show all reactants, reaction conditions in brackets (where known) and products. ethanol from calcium carbide

30. ## math

Gorang bought 60kg apples at Rs 48 per Kg. he sold 70% of the apples at Rs 60 per kg and the remaining apples at Rs 35 kg.Find Gorang gain or lost percent the whole transaction. amount he paid = 60(48) RS = 2880 Rs income from sale = .7(60)(60) +

31. ## math

two buses start from the same bus stand at 8am . one travels at 40km/h and the other at 50km/h . the second bus reaches the next stop at 10am. how much later will the first bus arrive?

32. ## Math

5 sin theta +12 cos theta = 13. Prove 5 cos theta - 12 sin theta =0.

33. ## Math 11

A roller coaster has a track that drops at an angle of depression of 25 degrees from a height of 14.9 m. When it reaches the ground in travels horizontally for 8 m. It then rises at an angle of elevation of 47 degrees to a height of 26.8 m A) What is the

34. ## physics

A 120-V motor has mechanical power output of 2.20 hp. It is 92.0% efficient in converting power that it takes in by electrical transmission into mechanical power. (a) Find the current in the motor (A) (b) Find the energy delivered to the motor by

35. ## 12th

an electron above the earth is balanced by the gravitational force and the electric field of the earth. find the electric field of the earth.

36. ## math

write a subtraction story using the numbers 63 and 18

37. ## english

provided the incorrect steps in resolve the issue

38. ## trig

the shadow of a tower is 2y meters longer at 30 degree than when it was at 45 degree. find the height of the tower

for -2 < x < +3 and f(x) = 3x^2 - 6x a)determine the domain and range of f(x) b) the eqn of f inverse if f(x) is further restricted to 1 < x < 3. i don't know how to these problems i tried everything please help me

i need help doing this question... a quadratic funtion has these characteristics axis of symmetry: -1 x=3 is the x- int y= 32 is the maximum value determine the y int of this parabola.

41. ## physics

On a 120km track,a train travels the first 30km at a uniform speed of 30km/hr.how fast must the train travel the next 90km so as to average 60km/hr for the entire trip?

42. ## operating system

Consider a user types a document with a speed of 100 words per minute. Assume that an average word consists of 5 letters and ends by a break which can be a space, new line, TAB, or punctuation, and an average sentence consists of 20 words. Assume that a

43. ## chemistry

one method for favoring the formation of an ester is to add excess acetic acid. sugest another method,involving the right-hand side of the equation,that will favor the formation of the ester.

44. ## chemistry

one method for favoring the formation of an ester is to add excess acetic acid. sugest another method,involving the right-hand side of the equation,that will favor the formation of the ester.

45. ## ENGLISH

I HAVE BEEN ASKED TO WRITE AN ARTICLE ABOUT FEMALE MOSQUITO, PROBLEMS CAUSED BY FEMALE MOSQUITO, SOLUTION TO THE PROBLEMS AND CONCLUSION.

46. ## chemistry

Given one of the starting materials and end product for the following reaction, show all reactants, reaction conditions in brackets (where known) and products. acetic acid from chloroethane

47. ## trig

Prove that, in general, sin(alpha + beta) does not equal sin alpha + sin beta

48. ## trig

Find sin (alpha/2) and cos (alpha/2) sin alpha = 3, -pi/2 < alpha

49. ## Maths

ABCD is a parallelogram and X is the mid-point of AB. If area XCD =24cmsquare , then area ABC =?

50. ## Maths

Decimal number of 343/125 without doing actual division

51. ## Math

cone is inscribed in the sphere of radius R. Find the cone with maximum lateral surface

52. ## math

The difference between the simple interest and compound interest on a certain sum for 2 years at the rate of 5% per annum is rupees 205.find the sum.

53. ## maths

How many glasses can be filled in 21 cans each of 200 milliliters?

54. ## Math

In its monthly report, the local animal shelter states that it currently has 24 dogs and 18 cats available for adoption. 8 of the dogs and 6 of the cats are male. If two animals are selected at random, what is the probability that both are female cats?

55. ## maths

A ladder leaning against a wall makes an angle 60 with the horizontal if the foot of the ladder is the 2.5m away from the wall find the length of the ladder

56. ## soild mechanics

Under what axial tensile load, the diameter of a steel bar will be reduced from 8 cm to 7.995 cm? Take E as t/cm2 and Poisson’s ratio as 0.3

57. ## maths

∫(x^4-1)/(x^2 √(x^4+x^2+1)) dx

58. ## Science

What is the result of c6h5ch2cooh +H^+/KMnO4

59. ## Science

What is the result of c6h5ch2cooh +H^+/KMnO4

60. ## science

Two charges placed at a distance r apart exert force F on each other at what distance will these charges experience same force in medium of dielectric constant K.

61. ## Math

The midnight temperature of Delhi in the month of December was 100C If dropped by 40C in the next three hours.What was the temperature after 3hours

62. ## science

When a particle starts from rests and moves with constant acceleration then why its path is always a straight line?

63. ## math

use dominance to slove the game with following pay-off matrices: ((2 3 1/2) (3/2 2 0) (1/2 1 1)). ANS: A=(1/4,0,3/4); B=(1/4,0,3/4); v=7/8. i got answer, but how to do this? i need solution

64. ## math

slove the game with following pay-off 3*3 matrices:((2,3,1/2)(3/2,2,0)(1/2,1,1))

65. ## physics

a bob of mass m of a long pendulum of lengtg Lis at a horizontal position p.when released ,it hits a ball of mass m placed at a position Q.assume the collision to be elastic .after hitting the ball at Q,the bob will attain a height ?

66. ## Math

Karthi had RS.5000 with him. he lent a part of 12% per annum simple interest and the remaining at 15% per annum. his total annum income was Rs.700.find the sum lent at12% per annum.

67. ## maths

of 2 chords the 1 which is nearer to the centre is larger.proof

68. ## maths

if the radius and height of a cone both are increased by 10%. how much is the volume increased.

69. ## maths

2 equal cords AB and CD intersect at E.prove that arc AD=arcCB

70. ## maths

if a hollow sphere of internal and external diameter 4cm melted 8cm respectively melted into a cone of base diameter 8cm . find the height of cone

71. ## maths

the ratio between the radius of the base and height of a cylinder is 2:3.if its volume is 1617.find the total surface area of cylinder

72. ## slps

the class mark of the observation are 17, 21, 25, 29, 33,37,41,45.find the class intervals

73. ## Physics

A digital voltmeter with high internal resistance gives a maximum reading of 2.0 V. It is used to determine current by measuring the potential difference across a standard resistor S through which current has passed. What should the resistance of S be to

74. ## Physics

A high voltage unit has an internal resistance of 50 mega ohms. On open circuit, the potential difference across its output is 3000 V. When a resistor R is connected across its output, the potential difference at the output falls to 1000 V. Calculate the

75. ## Physics (Electricity)

A meter has a resistance of 75 ohms and gives full-scale deflection when it passes a current of 1.0 mA. How would you adapt the meter to read a) Currents up to 1A b) voltages up to: 5V c) Voltages up to: 100V

76. ## Physics

A uniform rod is 4m long and weighs 10 kg.if it is supported on a knife edge at one metre from the end what weight placed at that end keeps the rod horizontal?

77. ## aband public school

the side of square whose parimeter is 20m

78. ## human development

Describe how the body grows over childhood and adolescence.

79. ## human development

What changes take place in early adolescence to gender identity?

80. ## human development

What are some of the ways that children learn about gender stereotypes?

81. ## math trigonometry

A ladder 8.5m long is placed with its foot at a distance of 4m from the wall of a house and just reaches a window will . find the height of a window will and the sine and tan of the angle which the ladder makes with the wall

82. ## physics

a car is moving at speed of 50km/hr ,can be stopped by brake at least at 6 m.If the same car is moving at speed of 100 km/hr ,what is the minimum stopping distance?

83. ## communication

What bridging strategy would be useful to develop in order to become more interculturally competent?

84. ## math

the length and breadth of the room were measured and area calculated as 600sq.m. (l+B=50) later found the meter rod that had used as an error 5cm i.e actual length of the rod ws 95cm instead of 100cm. find the correct area of the room

85. ## maths

two straight poles length 80m, 50 m vertically with a distance 40m. a rope is connected their tops. find the length of the rope?

86. ## Bio 11

1 example for each A) Tentacled Mollusk B) 2-shelled Mollusk C) 1-shelled Mollusk D)Clever and smart Mollusk E) Pearl producing Mollusk F) Devoted mother Mollusk G) Land Mollusk H) Dangerous Mollusk I) Sneaky Mollusk J) Herbivore Mollusk K) 38-90!!

87. ## Bio 11

How is lifestyle related to nervous system development?

88. ## Bio 11

'Slow' vs. 'Fast' : give 3 example organisms each

89. ## Bio 11

what are 5 examples of the phylum porifera?

90. ## Math 11

A triangular pyramid has faces that are all equalatetal triangles. Each side length is 16 cm. What is the surface area of the pyramid?

91. ## Bio 11

what is the advantage of sexual reproduction over asexual reproduction

92. ## Math 11

An airplane is flying 100 km north and 185 km west of an airport. it is flying at a height of 7 km. A) what is the straight-line distace to the airport? B) what is the angle of elevation of the airplane, from the point of view of the airport?

93. ## math 11

An asymmetrical roof has measurements show in the diagram below. if the vertical supports are each two feet apart, calculate the measure of angle G and the slant heights (lengths x and y) of the roof.

94. ## Math 11

Chung-ho is standing on the top of a building that is 135 m talk. The angle of depression to the top of the building next door is 71 degrees. The angle of depression to the basebof the building is 77 degrees. The building are 31 m apart. How talk is the

95. ## Math11

bernhardt and julia are observing an eagals nest in a tree. Julia is 75 m from the tree, and sees it an angle of elevation of 42 degrees. A) How high up the tree is the nest? B) bernhardt is standing 30 m behind Julia. At what angle of elevation does he

96. ## Human Development

Why is it not ethical if a researcher researches on some people and the people get affected with for example, trouble in speech. What are the two reasons as to why this is not ethical?

97. ## English

What does it mean to be a professional? and what does it mean to be in a profession?

98. ## Physics

A projectile is launched with an initial speed of 80.0m/s at an angle of 40 degrees above the horizontal. The projectile lands on a hillside 3.80s later. Neglect air friction. What is the projectile's velocity at the highest point of its trajectory? What

99. ## sanskrit

i need information about jaydeva in sanskrit