# Questions Asked onFebruary 18, 2018

1. ## PHYSICS

explain the statement the capacitance of a capacitor is 5uf

2. ## Physics

A thread of mercury of length 15cm is used to trap some air in a capillary tube with uniform cross sectional area and closed at one end.With the tube vertical and the open end uppermost,the length of the trapped air column is 20cm.calculate the length of

3. ## Physics

A uniform capillary tube closed at one end contained dry air trapped by a thread of mercury 8.5×10^-2m long.When the tube was held horizontally the length of the air column was 5×10^-2m,when it was held vertically with the closed end downwards the length

4. ## alebra

Let f(x)=2x^2+x-3 and g(x)=x-1. Perform the indicated operation then find the domain. (f*g)(x) a.2x^3-x^2-4x+3; domain:all real numbers b.2x^3+x^2-3x; domain: all real numbers c.2x^3+x^2+4x-3; domain: negative real numbers d.2x^3+x-3x+3; domain: positive

5. ## Math

39. Which of the following is the appropriate prefix to measure the amount of space taken up? A. Mili B.Deca C.Kilo D.Micro

6. ## Maths

A and B are points on the parallel of latitude 58.4N their longitudes being 148W and 32E respectively.What is their distance apart (a)along the parallel of latitude (b)along a great circle

7. ## chem

a 200.0ml sample of nitrogen gas N2 is collected at 45.0 Celsius and a pressure of 610 torr what volume in milliliters will the gas occupy at 0.0 Celsius and 760 torr?

8. ## Math

The Empirical Rule: The weight,in the grams, of the pair of kidneys in adult males the ages of 40 and 49 has a bell-shaped distribution with a mean of 325 grams and a standard deviation of 30 grams. A) About 95% of kidney pairs will be between what

9. ## 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?

10. ## Science

Pls teach me how to evaluate sin 375° without using calculator

11. ## Math - binomial

Find the indicated term in the expansion of the given binomial. The term that does not contain x in the expansion of (6x+1/2x)^12 Is there an easier way to find the answer instead of going through finding 13 terms Thanks.

12. ## Math (Pre Calc)

If two forces of 5 lb. and 8 lb. are acting on the same point are equivalent to a single force of 10 lb., find the angle between the given forces, and the angle between the resultant and the larger force. I am not allowed to use law of cosines I must use

13. ## Geometry

AB and CD are two parallel chords of a circle whose centre is O and radius is 20cm.If Ab=24cm and CD=32cm find distance between AB and CD. If it's given that they lie. 1.onthe opposite sides of centreO. 2.on the same side of the centre o.

14. ## Physics

A gas occupies 8 litres at 23'C and 70cmHg what is the volume at stp

15. ## Physics

A uniform capillary tube closed at one end contained dry air trapped by a thread of mercury 8.5×10^-2m long.When the tube was held horizontally the length of the air column was 5×10^-2m,when it was held vertically with the closed end downwards the length

16. ## Science

Which is a better insulator of heat, a plastic spoon or a wooden Popsicle stick?

17. ## chem

I tried this question but just cant get it. atmospheric pressure on the surface of Mars is about 6.0mmHg the partial pressure of carbon dioxide is 5.7mmHg. what percent of the Martian atmosphere is CO2?

18. ## Social

we talk about the birth of nationalism being the french revolution. why might the americans dispute this

19. ## Algebra

Find the exact value of sin(u/2), cos(u/2), and tan(u/2) using the half-angle formula, given that cscu = -5/3 and π < u < 3π/2

20. ## Physics

A fixed mass of gas of volume 600 cm cube at a temperature of 27 C is cooled at constant pressure to a temperature of 0C.what is the change in volume

21. ## Chemistry

Which is a chemical property of hydrogen? A. It is a light gas. B. It is a combustible gas. C. It is a colorless gas. D. It has a boiling point of -252.87°C. E. It is a good conductor of electricity.

22. ## Algebra

1.) f(x) = 3x - 7 and g(x) = -2x - 6. Find (f ° g)(4) 2.) What is the inverse of the given relation? y = 3x + 12 3.) Rewrite ^3 sqrt 27x - 81 - 5 to make it easy to graph using translation. Describe the graph. I need help with my last 3 questions.

23. ## geometry

a 20 foot latter will be used to paint the exterior of a house. The foot of the latter needs to be 4.5 feet from the base of the house. What is the maximum height the ladder will reach?

24. ## math, algebra, word problems

Greg and Gary start a bicycle race at the same place and time.Greg travels at a constant speed of 16 miles/hour and Gary at a constant speed of 12 miles/hour. Greg finishes the race 2 hours ahead of Gary. How many miles did Greg travel in the race? Please

25. ## geography/world history

Is Afghanistan considered a border of India? Even though it never touches it. I was thinking "Yes" but I don't quite understand.

26. ## math

What does it mean for concavity of the original graph if there is an asymptote in the f'' graph?

27. ## chem

calculate the pressure on mmHg of 0.0108mol of methane (CH4) in a 0.265 flask at 37 Celsius

28. ## Math (pre calc)

You have recently been promoted and are now a senior pilot with BHS Exprress, providing courteous and timely service to countless cities across the Northeast. In order to arrive in New York City at the scheduled time, you know you must fly at a speed of

29. ## math

ABC phone company charges\$23 per month plus8¢ per minute of phone calls. XYZ phone company charges\$11 per month plus11¢ per minute of phone calls. How many minutes of phone calls in a month make XYZ phone company the better deal?

30. ## Calculus

Can someone check my work and answer? Evaluate the integral from -1 to 0 of (4x^6+2x)^3(12x^5+1)dx My work: let u=4x^6+2x dx=du/24x^5+2 now we have the integral from -1 to 0 of u^3(12x^5+1)(du/24x^5+2) Simplifies to the integral from -1 to 0 of

31. ## Physics

In two separate experiments, a sample of helium gas is taken from the same initial state to the same final state, along two separates paths on a P-V diagram. Path a has two parts: first an isochor and second isobar. Path b is an isotherm. Determine the

32. ## Statistics

The normality of NaOH obtained was 0.0172, 0.0187, 0.0185, 0.189, and 0.0183 N. The theoretical normality of NaOH was 0.02 N. Please calculate: 1) Standard deviation based on the true mean: 2) Standard deviation based on the experimental mean: SD 3)

33. ## Algebra

Felicia took out a simple interest loan at 12 percent interest for 6 months.her previous balance is\$2460.what is the final payment of the loan is paid off with the next payment

34. ## Calculus

a small business estimates that its profit from producing x items can be modelled by: P(x) = 0.003x^3 - 1.5x^2 + 200 - 1000 due to limited space and capital, the number of items produced must not exceed 350 items. Explore the model and make suggestions to

35. ## Chemistry

When 1.578 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 4.951 grams of CO2 and 2.027 grams of H2O were produced. In a separate experiment, the molar mass of the compound was found to be 56.11 g/mol. Determine the empirical

36. ## economic

Factors affecting the demand of detergents

37. ## Math

In the same carnival there is a similar game of chance. The game involves a small bag containing 30 marbles where 12 are green and 8 are yellow and the rest are brown. You win 20 pesos if you are able to draw green marble and you win 10 pesos if you are

38. ## Physics

The amplitude of a sinusoidal sound wave is quadrupled. a) By which factor is its intensity multiplied? b)By how many decibels does the sound intensity level increase?

39. ## Maths

Find the values of P and Q in an Ap -12,P,Q,18

40. ## Aeronautical engineering

What are the parts of an exhaust system for a high bypass turbo fan and jet engine.

41. ## Math

The following series does not go below zero: 2016+2005+1994+...+L (a) What is the smallest possible value of the last number L ? (b) Find the sum of the series.

42. ## maths

IF THE SECOND AND FORTY FIFTH TERM OF AN AP IS 10 AND 96 RESPECTIVELY. FIND THE FIRST TERM AND COMMON DIFFERENCE.ALSO FIND THE SUM OF FIRST FIFTEEN TERMS

43. ## Math

The sum of all the even numbers less than and inclusive of E is 197580. (a) What is the value of E? (b) What is the sum of all the odd numbers less than E?

44. ## physics

A sample of lead with a mass of 1.45kg is heated until it reaches its melting point at 330C. The lead is then heated further until it has entirely melted. During this process the lead absorbs a total of 4.46 104J as heat. What is the temperature at which

45. ## physics

When determining the specific heat from a given metal in a calorimeter the mass of the water remains constant, but the mass of the metal is increased what would happen to the equilibrium temperature? Explain your choice.

46. ## Physics

A chandelier of mass 120.0kg is supported by two cords. The first makes an angle of 60° with the ceiling and the second supports it horizontally to the wall. Find the tension in the two cords (g=9.8ms²)

47. ## Chemistry

At what temperature (ºC) will 0.460 mol of carbon dioxide, at a pressure of 276 kPa occupy a volume of 2574 mL?

48. ## World history

Use the image below to answer the following question: An image of a man with his hands and feet nailed to a large cross. © Godong\UIG\Image Quest 2016 Which key figure in Christianity does this image represent? Peter Paul Jesus God

49. ## Math

Pamela is 10 years younger then Jiri. The sum of their ages is 68. What is Jiri's age?

50. ## Writing

What strategies can you use if you have found too many or too few sources?

51. ## Research

What are some ethical and legal issues in research involving human subjects?

52. ## math

Solve the following equation for B: A=[h(b+B)]/2

53. ## history

which most accurately explains how the union of austria and hungary contributed to the outbreak of world war 1? a. the powerful economy of austria-hungary dominated europe and upset neighboring countries b. the union eventually created tension between

54. ## Computers/Database

So I created normalization steps for this pet and owner table in a database class : Started with Candidate keys, followed by functional dependency break the tables up into tables , then the referential integrity and the end . PET

55. ## calculus

Find the interval on which the curve of y= the integral from 0 to x of 2/(1+3t+t^2)dt is concave up. I asked this question yesterday and I would like to see if someone could check my answer. I got the curve is concave up when x

56. ## English

Please show me an agumentative essay on boys helping girls in the kitchen

57. ## PHYSICS

EXPLAIN THE STATEMENT THE CAPACITANCE OF A CAPACITOR IS 5MICROFARAD

58. ## Maths

A uniform capillary tube closed at one end contained dry air trapped by a thread of mercury 8.5×10^-2m long.When the tube was held horizontally the length of the air column was 5×10^-2m,when it was held vertically with the closed end downwards the length