# Questions Asked onDecember 9, 2011

1. ## trig

If θ is an angle in standard position and its terminal side passes through the point (20,-21), find the exact value of sec(θ).

2. ## physics

if a car generates 18 hp when traveling at a steady 88 km/h, what must be the average force exerted on the car due to friction and air resistance

3. ## chemistry

A 0.12-mole sample of nitrogen gas occupies a volume of 2.55 L. What is the volume of 0.32 mol of nitrogen gas under the same conditions?

4. ## Chemistry

Suppose you have two solutions to titrate with NaOH: (a) 10 ml of.1M HCL (b) 10 ml of .1M CH3COOH would you expect either of the solutions to require different volumes of NaOH in order to reach an end point? Explain

5. ## math

solve each triangle using either the Law of Sines or the Law of Cosines. If no triangle exists, write “no solution.” Round your answers to the nearest tenth. A = 23°, B = 55°, b = 9 A = 18°, a = 25, b = 18

I'm supposed to choose how the italicized noun clause is used. Not so sure about the different types of noun clauses.. can someone help me? & also kinda explain the difference? 1. The chairman heard [what was said about the program.] S OP PN DO 2. A good

7. ## CHEMISTRY

What is the intermolecular force that exists between a magnesium ion and a hydrogen sulfide? A dipole dipole b london dispersion c ionic bond d ion dipole e ion ion

8. ## Math

Determine the maximum and minimum number of turning points for the function h(x) = -2x^4 - 8x^3 + 5x -6. Maximum:3 Minimum:1 Is this a valid reason: A quartic polynomial function has a 3 Turning points. The turning point is always 1 less than the degree.

9. ## project management

A project exists outside of the standard line organization. its false what is wrong with it sorry i don't have a book,its expensive,we are poor and i cant find any on the net thankyou

10. ## Physics

A rocket leaves a launch pad at liftoff with a great deal of upward momentum. What was initially given downward momentum? a. the launch pad b. the astronauts aboard the rocket c. the expelled fuel d. the entire Earth

11. ## physics

A motor cyclist travelling at 12m/s decelerates at 3m/s^2. (a)How long does he take to come to rest? (b)How far does he travel in coming to rest?

12. ## calc 1

Evaluate the indefinite integral. e^(8x)sin(e^(8x))

24. ## Maths

What is the area of the minor segment cut off a circle of radius 10 cm by a chord of length 12 cm? Could you please show me the working out for this question? The answer in the textbook is 16 sq cm. Thanks!!!

25. ## algebra

Find the mean for each set of data. Round to the nearest tenth if necessary 12, 20, 8, 15, 16, 14, 7, 5, 11, 8, 14 i realy need help on this i keep on getting 12 as the median but the answer choices don't have 12, could u guys help me please

26. ## Algebra

Algebraically at what temp is Celsius 1/4 that of Fahrenheit?? ie C = 1/4 F

27. ## physics

a ball has a mass of 0.5kg dropped from a cliff top, the ball srtikes the sea below at a velocity of 10m/s. (a)what is the kinetic energy of the ball as it strikes the sea? (b) what was its potential energy before it was dropped? (c)from what height was it

ethics- (a). Harveston asserted that Narnia’s service was invalid in part because “the return of service states that process was delivered to “JoAnn Kocerek” and did not show that she “had the authority to accept process on behalf of Harvestons

29. ## statistics

Write the null and alternative hypotheses. Justify which is the claim. A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is less than 900 hours

30. ## English

In "How to Build a Fire" what is the answer to this question? Aristotle described various plots. Combining them, we get a tradtional definition of an ideal tragedy. How does this story compare to this traditional ideal of a Greek tragedy? It fits the ideal

31. ## Chemistry

Apply the gas laws to determine how many grams of sodium azide (NaN3) are needed to fill the air bag of your vehicle to a volume of 79.0 L at 35.0 degrees celsius and 1.00 atm. The reaction occurring in the air bag can be repesented by the equation, 2NaN3

32. ## algebra

List all possible or potential rational zeros for the polynomial below find all real zeros of the polynomial below and factor completely over the real numbers. f(x) x^4 + 10x^3 + 12x^2 - 58x + 35 Someone anyone?????

33. ## Pre-algebra

How would I explain to my friend why the quotient of x^8 and x^2 is x^6 and not x^4. She is questioning the rule. How do I explain?

34. ## physics

A pendulum consists of a massless rigid rod with a mass at one end. The other end is pivoted on a frictionless pivot so that it can turn through a complete circle. The pendulum is inverted, so the mass is directly above the pivot point, and then released.

35. ## Computer help!!!

Is 15.30 mbps good download speed? Also is 15 ms ping good and 0.40 mnps upload speed?

36. ## us history

what do you think were the 15 most important events in us history between the founding of jamestown(1600's) and the end of the great depression (1930's)???

55. ## math

is the mean or median a better estimate for the parameter of interest?

56. ## physics

A former amusement park attraction consisted of a huge vertical cylinder rotating rapidly around its axis. The rotation speed should be sufficient for the people found inside to be stuck to the wall when the floor was removed. what should be the minimum

57. ## Confuses how my teacher got this?

The question says "Given that cos(theta)=(-7/25) and sin(theta)>0, calculate the exact values of tan(theta) and csc(theta). We start out by drawing a triangle. 25 is on the side of the hypotenuse and -7 is on the adjacent side, because cos is adjacent over

58. ## physics

Suppose 0.0210 kg of steam (at 100.00°C) is added to 0.210 kg of water (initially at 19.5°C.). The water is inside a copper cup of mass 48.9 g. The cup is inside a perfectly insulated calorimetry container that prevents heat flow with the outside

59. ## chef school

You are given a recipe that feeds 100 1 cup servings. Describe the steps you would take to convert the recipe to 1350.

60. ## Math

Three different numbers are chosen at random from the set {1,2,3,4,5}. The numbers are arranged in increasing order. What is the probability that the resulting sequence is an arithmetic sequence?

61. ## US History

Flow chart. One Box then two boxes then 6 boxes. The words are: Freedom of Religion Freedom of Speech Involvement in Government Obey The Law Respect the Rights of Others responsibilities right to vote rights. Don't know how to put the flow chart together.

62. ## accounting

What is the acid test ratio? Is it the same thing as the quick ratio?

63. ## Math

Three different numbers are chosen at random from the set {1,2,3,4,5}. The numbers are arranged in increasing order. What is the probability that the resulting sequence is an arithmetic sequence?

64. ## English - Infinitive phrases

Consider the two sentences: His mother wanted him to study more. She made him study more. In the first, we have an infinitive phrase acting as a direct object, with "him" as the subject of the infinitive. How about the second sentence? Is that also an

65. ## algebra

how do I solve F = 5/9 (F-32) ?

66. ## Algebra

What is the equation of the line having the specified slope and contained the indicated point. M=-3/5;(12,-6)

67. ## physics

A copper sheet of thickness 2.09 mm is bonded to a steel sheet of thickness 1.35 mm. The outside surface of the copper sheet is held at a temperature of 100.0°C and the steel sheet at 26.3°C a) Determine the temperature (in °C) of the copper-steel

68. ## algebra

amys bowling score in her 3rd game was 10 less that her score in her first game and 5 more than her second game. The total points of all 3 games were 275. What is the highest number of points she could have scored in her first game?

69. ## physics

how do we calculate the height of a falling ball with a mass of 0.5kg and a velocity of 10m/s.

70. ## Math

State the exact values of the following. cos(360 degrees) sec(7pi/2) tan(-9pi/2) How do I do these? Thanks!

71. ## Calc

Calculate the exact values of sin(theta) cos(theta) and tan (theta) when theta=240 degrees. How would I do this with and without a calculator?

72. ## science

Why are proteins necessary in your body? What are polymers that build up to make proteins?

73. ## physics

A merry-go-round in a playground has a mass of 200 kg and radius of 1.50 m. You apply a force F = 23 N tangentially to the edge of the merry-go-round for a time of 6.5 s. The moment of inertia of the merry-go-round is 1/2(mR2). What is the angular

74. ## algebra

9z^2+24z+16/6z^2+5z-4

153. ## Algebra 1

what is the equations "The sum of two numbers is 75. The first is 9 more than 5 times the second. Find the first number?" What is the equations "Jack's bowling score is 20 less than 3 times Jill's score. Thw sum of their scores is 220. Find the score of

154. ## math

is 3 times 6 18 am i correct?

155. ## physics

A 4 kg block and a 45 kg block are placed side-by-side at the top of a frictionless ramp. Each is given a very light tap to begin their race to the bottom of the hill. In the absence of air resistance a. the 4 kg block wins the race. b. the 45 kg block

156. ## math

Rodney need 3/4 of a roll of wrapping paper to wrap 5 gifts. How much wrapping paper does it take to wrap two gifts?

157. ## math

Find the 265th term of an arithmetic sequence whose second term is 5/8 and whose 9th term is 71/24 pls help asap

158. ## Essay

Is there any essay contests for 2012 (that are due in 2012)???????

159. ## world history

what helped unite charlemagne's empire? Viking attacks

160. ## world history

What helped unite Charlemagne's empire? answer A strong efficient government helped unite Charlemangne's empire

161. ## Chemistry (Equilibrium)

Given the reaction below 2NOBr(g) 2NO(g) + Br2(g) and the value of Kc = 1.98, at a temperature of 480 K what is the value of Kp ? (Hint: Use the value of R in the appropriate units.) I used the equation Kp=Kc(RT)^Delta N Then plugged in to get

162. ## Chemistry

A sample gas is 3.7 L at 15.3 degrees C and the pressure is held at constant. What would be the volume if the temp was raised to 153 degrees C?

163. ## trig

If (cosa-sina)/sina = 2 , then what is tga = ?

164. ## calculus

verify the Intermediate Value Theorem if F(x)=squre root of x+1 and the interval is [3,24].

165. ## calculus

Find the critical number of g(t)=(t^2)/(5t+4)

166. ## Chemistry

A researcher is studying the decomposition of A as shown by the general reaction below: 2 A(g) 4 B(g) + 2 C(g) Initially, the scientist fills an evacuated 1.772 L flask with 3.710 x 10-1 moles of species A. Upon equilibrium, it is determined that the

167. ## calculus

Find the maximum volume of right circular cylinder that can be inscribed in a cone of altitude 12 cm and base radius 4 cm, if the axes of the cylinder and con coincide.

Calculate the exact values of the cot(theta) and sin(theta) for the acute angle theta if sec(theta)= the square root of 6. Thank you so much!