# Nikita

Most popular questions and responses by Nikita
1. ## ENGLISH

SPPECH ABOUT TRADITIONAL HEALERS SHOULD BE ALLOWED TO PRACTISE AND PRESCRIBE MEDICINE IN HOSPITALS AND CLINICS

2. ## Physics

A simple pendulum is oscillating with an angular amplitude 60°.If mass of bob is 50 gram the tension in the string at mean position is(g=10m/s2)

3. ## AP CHEMISTRY

Phosphoric acid is triprotic acid (three ionizable hydrogens). The values of its stepwise ionization constants are Ka1= 7.5E-5, Ka2= 6.2E-8, and Ka3= 4.2E-13 1) Write the chemical equation for the first ionization reaction of phosphoric acid with water

4. ## English

In these four sentences, the word that’s most obviously a loaded word is? 1. Netta and Jim argued over their views of free trade. 2. Netta and Jim had different views on free trade. 3. Netta and Jim were sharply split over the issue of free trade. 4.

5. ## Chemistry

In the reaction between H2O2 and I-, 15 mL of 0.30M KI, 65. mL of 0.10M H2O2 and 19 mL of 0.020M Na2S2O3 were mixed in a flask containing starch and buffer and the total volume was made up to 500mL with distilled water. The solution turned blue (indicating

6. ## Math

What percentage of the total students chose skateboarding? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 10% B. 20% C. 30% D. None of these Is the answer D? Thank you

7. ## physics

An airplane travels 2800 km at a speed of 700 km/h, decreases its speed to 500 km/h for the next 1500 km and travels the last 1000 km at a speed of 400 km/hr. Find the average speed of the plane for the trip.

8. ## College chemistry

A buffered solution is made by adding 50.0 g NH4Cl to 1.00 L of a 0.70 M solution of NH3. Calculate the pH of the final solution. (Assume no volume change.)

9. ## geometry

Points $F$, $E$, and $D$ are on the sides $\overline{AB}$, $\overline{AC}$, and $\overline{BC}$, respectively, of right $\triangle ABC$ such that $AFDE$ is a square. If $AB = 12$ and $AC = 8$, then what is $AF$?

10. ## Math

What percentage of the students who chose biking were girls? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 30% B. 37.5% C. 40% D. none of these Is the answer D? Thank you

11. ## science

tori wants to increase the tempreature of 500 grams of water from 20 degrees celcius to 100 degrees celecius if the specific heat of water is 4.18j/g. degrees celcius how much heat is needed ?

12. ## Math

Which of the following types of information is NOT suited for display on a scatter plot? A. Relationship between age and number of books read in a year. B. Relationship between height and shoe size. C. Relationship between calories sonsumed and body

13. ## English

This question is based on the following poem: Seasons are celebrations. A year's a Ferris wheel. Both honor our world's habit of spinning 'round a star. 7. Which one of the following sentences best expresses the main idea of this poem? A. The world has a

14. ## science

gold has a specific heat of 0.130j/g. degrees celcuis if 195 joules of heat are added to 15 grans of gold homw much does the tempreature of the gold change

15. ## Math

What percentage of the boys chose walking? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 30% B. 45% C. 25% D. None of these Is the answer A? Thank you

16. ## maths

pole A is twice as long as pole B. pole C is 260 cm shorter than pole A. pole C is 1040 cm long, what is the total length of the three poles

17. ## Physics

A 0.535 kg wood block is firmly attached to a very light horizontal spring (k = 175 N/m. It is noted that the block-spring system, when compressed 5.0 cm and released, stretches out 2.3 cm beyond the equilibrium position before stopping and turning back.

18. ## Trigonometry

Solution for sin6xcos4x dx?

19. ## Physics

A massless string runs around two massless, frictionless pulleys, where one pulley is attached to the ceiling, and the other is suspended with a mass m. An object with mass m = 17 kg hangs from one pulley. A force F is exerted on the free end of the string

20. ## Bussiness studies,Pure Maths,Geography

What course is suitable for these subjects?

21. ## College History

HOw did the Scopes trial mirror treds in American society during the 1920s? How did government spending during World war two affect the economic development of the West and SOuth. Please help. Thanks

22. ## science

a plastic container witha mass of 30 grams gains 1,140 joules of heat if the tempreature of the container increases 20 degrees celcius what is the specific heat of the plastic in the container

23. ## Chemistry

Calculate the final temperature of a mixture of 350g of ice cubes at -18 degrees C and 237 g of water at 100 degrees C

24. ## Chemistry

Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 degrees celcius ? The freezing point for pure water is 0.0 degrees celcius and Kf is equal to 1.86 degrees

25. ## Physics

A roller coaster ride includes a circular loop with radius R = 13.3 m. What minimum speed must the car have at the top to stay in contact with the tracks?

26. ## English

This question is based on the following excerpt from a short story. Inside the bus, in his summer Class-A uniform with its brass glitter and infantry-blue shoulder cordon, Jamie Sabin was going home. Fort Benning would be a fading dream; Preston, Virginia,

27. ## Math

I don't understand how to do this problem if someone can please help me to figure it out thank you. A survey about the student government program at a school finds that of 245 students: -218 students like the program -27 students think the program is

28. ## science

a sliver coin and a gold coin each have a mass of exactly 6.6 grams the specific heat of sliver is 0.235j/g.degrees celcius and the specific heat of gold his 0.130j/g. degrees celcius what coin requires more heat to raise its tempreature by 40 degrees

29. ## History

Discuss how successful the antiwar movement was in changing the course of the war. What methods did they use? How did the movement view the freedom and the war? Thank you for your help

30. ## PHYSICS

Leg traction is applied to a patient's leg as shown in the figure below. If the physician has requested a 33 N force to be applied to the leg, and the angle is θ = 60 degrees. what mass m must be used for the object hanging from the massless cable? Image

31. ## English

What are the overall effectiveness of the speech "Pearson’s address on the inauguration of the national flag of Canada" What are his persuasive goal and what arguments he uses to achieve his purpose?

32. ## Physics

A roller coaster ride includes a circular loop with radius R = 11.6 m. What minimum speed must the car have at the top to stay in contact with the tracks? How would I go around solving this, as in what formula would I need?

33. ## science

a solution containing 4.2g KOHand Ca(OH) 2 is neutralized by an acid. it consumes 0.1 equivalent of acid, calculate the percentage composition of the sample

34. ## Calculus

What is lim (t^3 + 1)/(t lnt) x->infinity

35. ## History

1. COmment on what James Baldwin said of the Civil rights movement challenging the United States to rethink"What it really means by freedom, including whether freedom, applied to all Americans or to part of the population? This is what I put : With their

36. ## math

by what percent os a 100- watt light bulb brighter than a 60 watt light bulb

37. ## chemistry

What is the minimum volume of 2.6 required to completely dissolve 20.0 of potassium metal?

38. ## Psy/355

I need help with my research paper please. 700- to 1,050-word paper in which you examine the concept of motivation. „h Address the following items: o Define motivation. o Identify at least two sources of motivation. o Explain the relationship between

39. ## science

the specific heat of sliver is 0.235j /g.c. how much heat is neeeded to raise the tempreature of an 8 gram sliver ring be 50 degrees celecius

40. ## Physics

The zeppelin Hindenburg exploded on May 6, 1937, in Lakehurst, New Jersey. The accident was due to this type of dirigible using hydrogen (density of H2, M = 2g/mol) as a gas. It carried up to 70 passengers and crew. Estimate how many passengers and crew

41. ## Physics

An object of mass M rests on a horizontal table and is connected to a cable that passes over a pulley and is then fastened to a hanging object with mass m. There is static friction between the horizontal surface and mass M. The coefficient of static

42. ## Physics

An object is thrown vertically upward. a) What are its velocity and acceleration when it reaches its highest altitude? b) What is its acceleration on its way downward half a meter above the ground? My ans: a) velocity is zero and acceleration is 9.8 m/s^2

1.What would happen to poisonous chlorine gas if protons were added neutrons were added 2. Boron is 80.20% boron -11 (atomic mass = 11.01 amu) and 19.80% of some isotope form of boron. What must the stomic mass of this second isotope be in order to account

44. ## Math

N is a two digit number such that the number formed by reversing the digits of N is 18 less than N. If the units digit of N is 5, find its tens digit.

45. ## Math

When finding the perimeter of the figure on a grid why do you not count the space inside the grid

46. ## Physics

The zeppelin Hindenburg exploded on May 6, 1937, in Lakehurst, New Jersey. The accident was due to this type of dirigible using hydrogen (density of H2, M = 2g/mol) as a gas. It carried up to 70 passengers and crew. Estimate how many passengers and crew

47. ## Calculus

Find a) lim (ln x)^1/x x->infinity b) lim (x-1)^lnx x->1+

48. ## Physics

An object rests on an inclined surface thanks to the presence of static friction forces between the object and the surface. The magnitude of the friction force that prevents the object from sliding is found to be 30 N. Now, the angle that the surface makes

49. ## Positive psychology

how does autonomy affects sense of freedom

50. ## maths

find the roots of the equation X(square)+7x equal to 0.(b)write down the equation whose roots are -2 and 5. I will be happy to critique your thinking. Write the equation, and solve. In the second, hint: (x+2) is one factor.

51. ## precalc

Three hours after taking a pain medication, 41% of the medication still remains in the bloodstream. Let m be the 1-hour decay factor. a. What is the 3-hour decay factor as a numeric value? What is the 3-hour decay factor in terms of m ? b. Use your results

52. ## Psychology

I need help on collecting information for my research paper. Thanks in advance. Prepare a 1,400- to 1,750-word paper in which you explain the interaction between hormones and behavior, and how these interactions affect the determination of gender identity.

53. ## economics

What two kinds of changes in the capital stock can improve labor productivity? How can each type be illustrated with a per-worker production function? What determines the slope of the per-worker production function?  14-) (Rules of the Game) How do

54. ## Physics

Bernoulli's equation is an expression of: the conservation of mass the conservation of total energy the conservation of kinetic energy the conservation of momentum the conservation of velocity My ans: the equation states that it should be a constant when

55. ## Physics

Hairs on the arms are tilted upward when a person gets goose bumps. The contracting muscle is called arrector pili and connects to the epidermis and the root sheath. Can you identify an action-reaction pair of forces that is involved in its action? My ans:

56. ## Physics =(

a) Can an object accelerate if its SPEED is constant? b) Can ab object accelerate if its VELOCITY is constant?

57. ## Physics

Can the instantaneous velocity of an object at a given time instant be greater than the average velocity over a time interval that includes the given time instant? Can it be less?

A lot has been said concerning right to work laws. What is the current status of such laws? 1 The congress forbade this law 2 if state passes it, then employees must join a union 3 if state passes it, then employees don't have to join a union 4 if state

59. ## physics

A boat of mass 40 kg is at rest.A dog of mass 4 kg moves in the boat with a velocity of 10 m/s.what is the velocity of the boat?

60. ## Phyics

Force of 18000N is gerenated by the engine of traine having is wages of mass 1000kg each and 2000N is lost against.Calcute accelration \$ force impaned on each wages.

61. ## ECE405

Identify and describe at least two ways you can structure and design the classroom environment to enhance anti-bias education and culturally relevant learning

62. ## Chemistry

In this exercise, you need to spike 0.5 L of river water with 1,000 g/L of phosphate. Starting from a stock solution containing 1,000 mg/L of phosphate, calculate and explain in detail how exactly you will conduct this spiking experiment

three equal and similar charges each of 'q' units are placed at the corners of the square of side 'a' .find the electric field strength at the fourth corner?

64. ## Physics

An object of mass m = 2.7 kg moves with initial speed vinitial = 2.2 m/s, then interacts with its environment, releasing 4.4 J of work. What is the speed of the object after the interaction is completed? My ans: I found KE initially and then subtracted

65. ## Physics

Determine the work done by a person when lowering an object of mass 2.6 kg by a distance of 2.4 m. The person applies a force Fext such that the object moves with constant speed, i.e., without acceleration,

66. ## Physics

In a mechanical experiment with an isolated object, only Ekin and Epot of the object change. If the object accelerates from 5 m/s to 10 m/s, its potential energy has? My ans: Potential energy has decreased by a factor of 2 because kinetic energy has

67. ## Calculus

Using L'Hopital's rule find the limit if exists of; lim x->1 (cosx)/(pi-2x) I got (sinx)/2 but i am not sure about this> Can anyone help me out

68. ## Physics

Which of the following forces does NOT have a zero work done on the object: a)The normal force on a box that slides across a horizontal level floor. b)The weight on a box that slides across a horizontal level floor. c)The normal force on a box that slides

69. ## Physics

A force of 5 N causes the displacement of an object by 3 m in the direction in which the force acts. What work did the object do/has been done on the object? My ans: Work = F * Displacement =+15 J positive because it acts in the direction of the object?

70. ## Calculus

What is implicit differentiation...as in what would be the steps in solving it. I read my textbook but it seems very confusing. 1) Differentiate both sides with respect to x 2) Realize that y is a function of x 3) Solve for y Plus the d/dx notation made it

71. ## Calculus

How do you find factors of this with long division? 2x^3 - 3x^2 + 3x -1 = 0 I just don't know how to do it because there is a coefficient in front of first term.

72. ## Physics

An object slides down a inclined surface in the presence of kinetic friction forces. At the given inclination the kinetic friction force is found to be of magnitude 90 N. Now, the angle that the surface makes with respect to the horizontal is increased and

73. ## Physics

To treat fractures of the humerus shaft, a cast and traction device is used; such that the cast of the upper arm is bent by 100 degrees to 110 degrees at the elbow joint. The traction device is an object of mass M that is hung at the elbow, it keeps the

74. ## Physics

Two forces F1 and F2 act on ab object. It accelerates in a particular direction. Under what circumstances can you predict the direction of force F1 regardless of the specific value of Force F2? My ans: When F2 is weight but I am not sure

75. ## Physics

An object is thrown upward by a person on a train that moves with constant velocity. a) Describe the path of the object as seen by the person throwing it b) Describe the path of the object as seen by a stationary observer outside the train?

76. ## Physics

If an object travels with positive velocity in the x-direction, can it have a negative acceleration along the x-axis at the same time? (I think it can't both should be positive- because when you draw the velocity time graph - the gradient (acc.) is also

77. ## Physics

Work done by conservative forces change only A)PE of the system B)KE of the system C) ME of the system D)None of these

78. ## math

One day,20% of the 950 students at West Junior High were absent. How many students were absent? Is this right? 20/100 950/5 equals 190

79. ## Math

1. Benny is setting up fish tanks at the pet store. He has 8 angel fish, 12 tiger barbs , and 24 guppies. If he wants to have the same number of each kind of fish in every tank, what is the greatest number of tanks he can set up?

80. ## calculus

Construct a sign chart for the derivative. Then determine the relative and absolute extrema for y = -4x2 + 4 on the interval [-3,3].

81. ## spanish

Weather report in Spanish. Help!!!

82. ## Human and Social Biology

A calorimeter was used to oxidise completely 2g of a food sample,causing a temperature rise of 5degrees C in 100cm3 of water(this figure includes the water equivalent of the apparatus). How much energy was present in the food sample(in joule per g)?

83. ## Physics

An object is attached to a horizontal spring. It is initially displaced by distance Δx from the equilibrium position and then released from rest. When the object passes the equilibrium position, its speed will be: a)v = 0 m/s b)v proportional to Δx (the

84. ## Physics

We study water of 1.0 g/cm3 density in an open container with its surface exposed to the atmosphere. If we measure the pressure first at a depth d and find the value p1, and then at twice that depth to find p2, the two results are related in this form: a)

85. ## Physics

Determine the work done by a person when lowering an object of mass 2.6 kg by a distance of 2.4 m. The person applies a force Fext such that the object moves with constant speed, i.e., without acceleration? My ans: W=F*d F = ma But it's saying constant

86. ## Physics

An object of mass 0.7 kg is thrown vertically upwards at a speed of 23 m/s. What is the gravitational potential energy of the object at the highest point of its trajectory?

87. ## Physics

In a physics experiment with an inclined air track, what do you predict about the following: a) Position graph b) Velocity c) Acceleration My ans: For a i predicted there would be a curve and i didn't know why b) velocity will decrease with time but why?

88. ## Physics

How long would it take for the Earth to complete a full turn if a person at 49.2° northern geographical latitude floats apparently weightlessly across the room? Use REarth = 6,385 km for the radius of Earth

89. ## Calculus

find the derivative of f, when f(x)=1/sqrt(x) ok so i tried simplifying it by multiplying top and bottom by conjugate radical, the top simplified to h but the bottom was a mess.

90. ## Calculus

Is f(x)=1/sqrt(x-5) continious at x=2? I know it is discontinuous at x=5 but then I got confused with the three rules. Because function is continuous if f(a) a is in the domain, limit exits, and also lim x->a f(x) = f(a)?

91. ## Physics

An object rests on an inclined surface thanks to the presence of static friction forces between the object and the surface. The magnitude of the friction force that prevents the object from sliding is found to be 30 N. Now, the angle that the surface makes

92. ## Physics

An object is thrown upward by a person on a train that moves with constant velocity. a) Describe the path of the object as seen by the person throwing it b) Describe the path of the object as seen by a stationary observer outside the train?

93. ## Physics

Is there any point along the path of a projectile where its velocity and acceleration vectors are; a) perpendicular to each other b) parallel to each other? My ans: a) I thought its perpendicular at the peak but I didn't know how to explain it b) I thought

94. ## Physics

An object is thrown upward by a person on a train that moves with constant velocity. a) Describe the path of the object as seen by the person throwing it b) Describe the path of the object as seen by a stationary observer outside the train?

95. ## Physics

An object is thrown vertically upward. a) What are its velocity and acceleration when it reaches its highest altitude? b) What is its acceleration on its way downward half a meter above the ground? My ans: a) velocity is zero and acceleration is 9.8 m/s^2

96. ## science

I need help finding a PowerPoint with the importance of installation of actuator blocks on CH-47F aircraft or MH47 aircraft please.

97. ## english

i want the inanimate poem "the wind"

98. ## Physics

Use the following two viscosity values for liquid water: η = 1.8 x 10-3 Ns/m2 at 0 o C η = 2.8 x 10-4 Ns/m2 at 100 o C At what temperature do you need a lesser force to pull a given glass slide with a given speed v though the water?

99. ## Physics

If I double the density of a fluid, the buoyant force on a given piece of material fully immersed in the fluid will?