# Questions Asked onOctober 1, 2014

1. ## Trigonometry

A communications tower is located at the top of a steep hill, as shown. The angle of inclination of the hill is 58°. A guy wire is to be attached to the top of the tower and to the ground, 50 m downhill from the base of the tower. The angle α in the

2. ## Physics

In an electricity experiment, a 1.30g plastic ball is suspended on a 56.0cm long string and given an electric charge. A charged rod brought near the ball exerts a horizontal electrical force F⃗ elec on it, causing the ball to swing out to a 25.0∘ angle

3. ## Math

List out the elements of the set "The letters of the word Mississippi"

4. ## Materials Science

Rubber particles, roughly 1mm in diameter, have been added to an epoxy resin to increase its resistance to crack growth. Estimate the Young's modulus of the composite, given that the Young's moduli of the epoxy and the rubber are, respectively, 2GPa and

5. ## Materials Science

A cube of the isotropic, linear elastic epoxy resin E=2GPa, ν=0.3, α=50×10−6K−1 at 20∘C is unloaded. It is then heated to 60∘C. What is the corresponding strain matrix? The temperature is held constant at 60∘C. What stress is required to

6. ## Chemimstry

Consider this reaction involving an unknown element X. F2+2XBr = Br2+2XF When 5.200 g of XBr reacts, 2.896 g of Br2 is produced. Calculate the molar mass of XBr in g/mols? What is the element symbol for X? I know that I need to convert grams of Br2 to

7. ## Materials Science

A cylindrical pressure vessel, with a diameter of 40cm and a wall thickness of 10mm is made of steel (isotropic, with Young’s modulus = 200GPa; Poisson’s ratio = 0.28) and is pressurized to 20MPa. The longitudinal and hoop stresses in the wall, σl and

8. ## physics

A 0.450 kg hammer is moving horizontally at 6.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. (a) Calculate the duration of the impact. (b) What was the average force exerted on the nail?

9. ## Statistics

The age distribution of students at a community college is given below. Age (years) Number of students (f) 11) Over 35 26 1103 A student from the community college is selected at random. Find the conditional probability that the student is at most 35 given

10. ## Materials Science

A linear elastic, isotropic epoxy resin with elastic modulus, E=2GPa, and Poisson’s ratio, ν=0.3, is loaded by the following stress state: σ=⎡⎣10 5 0 5 −20 0 0 0 0⎤⎦MPa Give numerical values for all strain components in the corresponding

11. ## Physics

A person reaches a maximum height of 65cm when jumping straight up from a crouched position. During the jump itself, the person's body from the knees up rises a distance of around 50cm . To keep the calculations simple and yet get a reasonable result,

12. ## Materials Science

Aluminum is a cubic crystal, with S11=1.59×10−11 m2/N S12=−0.58×10−11 m2/N S44=3.52×10−11 m2/N What are the Young's modulus, Poisson's ratio and shear modulus, corresponding to these values? Young's modulus E (in GPa): Poisson's ratio ν: Shear

13. ## Math

Write an equation for the line in slope intercept form Slope:-2 passing through (-2,8)

14. ## Math - Mixed Numbers

Jared used 1 2/5 bags of soil for his garden. He is digging another garden that will need 1/5 as much soil as the original. How much will he use total? Is the answer 1 17/25 ?

15. ## Chem 400

Direct reaction of solid iodine (I2) and gaseous chlorine (Cl2) produces an iodine chloride,(IxCly), a bright yellow solid. 0.678 g of iodine (I2) is mixed with 0.851 g of chlorine (Cl2). After the elements react, some chlorine is left over along with a

16. ## chemistry

A given sample of a xenon fluoride compound contains molecules of the type XeFn where n is some whole number. Given that 9.03 × 1020 molecules of XeFn weighs 0.368 g, determine the value for n in the formula.

17. ## Physics

A 5.00×10^5-kg rocket is accelerating straight up. Its engines produce 1.250×10^7 N of thrust, and air resistance is 4.50×10^6 N. What is the rocket’s acceleration? I just need the formula for finding the acceleration.

18. ## calc / physics

Suppose that a 5-foot-long chandelier falls from a 35-foot ceiling and that you are 6 feet tall and standing directly under the chandelier (a) How long do you have to get out of the way when it drops? =-16(t^2)+Vt+h =-16(t^2)+0+(35-5-6) (for the bottom of

19. ## Math

Hal Fritz purchased a \$5,000 bond at 95. The annual interest is 6%. What was the cost of the bond? What was the annual interest? What is the yield (to nearest tenth of a percent)?

20. ## Math- Multi-step word problems

A plane traveling from Chicago to Boston with a tailwind of 10 miles per hour takes 4 hours. The return trip in the same wind, which is now a headwind, takes the same plane 4 hours and 9 minutes. According to this problem, about how far is it from Chicago

21. ## Math. idk?

6. Name the like terms in the following expression. 5m + 4 + 3m + 6p 7. Write an equation for the following: Twelve times h equals one hundred twenty minus thirty-six.State whether the equation is true, false, or an open sentence. Explain. 8. Use the

22. ## math

Write the first six terms of the arithmetic sequence with the given properties. a = 3, d = 2 a. 3,8,13,18,23,28 b. 3,5,7,9,11,13 c. 3,6,8,10,12,14 d. 2,7,12,17,22,27 e. 2,4,6,8,10,12

23. ## math

students of class XI of a school were motivated to apply for NCC. from each section equal number of students opted for NCC. if there are 3x + 11 sections of class XI and total number of students in all the sections is represented by 6x^3+13x^2+6x+158, then

24. ## physics

When a hammer strikes a nail, it is compressed along its length. Suppose that a steel nail 10.00 cm long and 3.00 mm in diameter is compressed an average of 65.0 µm by a 0.460 kg hammer during a 1.20 ms collision. (a) What average force was exerted on the

25. ## Chemistry

A solution contains Cr3+ ion and Mg2+ ion. The addition of 1.00 L of 1.55M NaF solution is required to cause the complete precipitation of these ions as CrF3(s) and MgF2(s). The total mass of the precipitate is 49.9g .Find the mass of Cr3+ in the original

26. ## chemistry

state the separation technique for silver choride and sodium trioxonitrate

27. ## English

My friend Jorge can play the guitar and sing. play is underlined would this be: part of a compound subject part of a compound verb phrase- part of a simple predicate I think its b.

28. ## Math- Multi-step word problems

A plane traveling from Phoenix to Washington, D.C with a tailwind of 20 miles per hour takes 3 hours. The return trip in the same wind, which is now a headwind, takes the same plane 3 hours and 12 minutes. What is the average speed of the plane in calm

29. ## english

in the sentance " They decided that the hedge needed a trim" what part of speech is the word "trim"

30. ## Trig

Two planes take off at the same time from an airport. The first plane is flying at 240 miles per hour on a bearing of S 45.0° E. The second plane is flying in the direction S 45.0°W at 290 miles per hour. What is the bearing of the second plane from the

31. ## Algebra HELP!

Factor each of the following expressions completely and then simplify, if possible: a: ax + 2x b: ax - 2x c: 3x - 4x + 7x d: 3x^2 + xy - x e: (a + b)(c + 1) - (a + b) f: x^2 - 9y^2 g: (x^2 - y^2) + x + y

32. ## History

Which descriptions of the roles of the popes and patrons of the arts in restoring the city of Rome are accurate? Choose all the correct answers. A- organized teams to find ancient statues buried in Rome. B- commissioned artists to create stunning paintings

33. ## algebra2/ trig

The figure at the right shows three circular pipes all with 12inch diameters the have been strapped together by a metal band.What is the lenght of the band? I don't even know where to start , please help?

34. ## Maths

Mathew is attending a very loud concert by the discarded. To avoid permanent ear damage he decides to move farther from the stage. Sound intensity is given by the formula I=k/d*d where k is the constant and d is the distance in metres from the listener to

35. ## algerbra 1

Two times the least of three consecutive odd integers exceeds three times the greatest of 15. What are the integers? I need an equation to solve and I have tried but without success can anyone help me?

36. ## Science urgent help please:)

Compare the forms of locomotion used by the 4 phyla of animal like protists? Describe the process of conjunction . Is conjunction a form of reproduction? Explain In what ways are animal like protists helpful to other living things?

37. ## Trigonometry

Use a sine function to graph a sound wave with a period of 0.004 of a second and an amplitude of 3 cm. Find the frequency in hertz for this sound wave. (Enter only the number.)

38. ## math

If the outer diameter of a cylindrical oil tank is 54.28 inches and the inner diameter is 48.7 inches,the thickness of the wall of the tank,in inches, is

39. ## math

An oil tank has a capacity of 45 gallons.At the beginning of October it is 80% full.At the end of October it is 1/3 full.How many gallons of oil were used in October? a. 21 b. 25 c. 41 d. 27 e. 30 my answer is (e)30, 45 x 1/3 =15 ,so 2/3 = 30

40. ## Math (for Damon)

Nathan and Steven stacked boxes on a shelf. Nathan lifted 13 boxes and Steven lifted 15 boxes. The boxes that Nathan lifted each weighed 12 lb more than the boxes Steven lifted. Which expression represents the total number of pounds Nathan lifted? Let s

41. ## matter and energy

how much heat must be added to 5.0 g of solid lead at 30 degrees celcius to convert it to liquid lead at the melting point?

42. ## Find the pattern

Our trip lasted for 12 days we arrived Sunday July 1 and left on Thursday July 12th where we stayed everyday something went wrong the electricity went out the water was shut off sliding patio wouldn't close the gas oven didn't work, and it rained. Out of

43. ## Math help!

Identify the property of integers being illustrated in each of the following: a:(-2)(3) (the "E" letter) element of I b: (-4)0=0 c: -2(3+4)=-2(3) + (-2)4 d: (-2)3=3(-2)

44. ## math

In how many ways can a row of three contestants for a TV game show be selected from an audience of 350 people?

45. ## math

hello im having problems with my math 1 Wells College in Aurora,New York was previously an all -girls college.In 2005,the college began to allow boys to enroll. By 2012, the ratio of boys to girls was 3 to 7. if there were 200 more girls then boys in 2012,

46. ## physics

When a solid is dropped from the boat (floating in water)into the water ,then the level of water will fall if density of that solid body is greater than density of water i.e when that solid body sinks.WHY?I tried hard ,but i am unable to figured it out

47. ## Algebra

Find the first five terms of the sequence whose nth term is given. a: (-2)n + 2n b: n squared(-1)n c: |10-n squared|

Which choice best describes the underlined word or words in each sentence? The ancient Sumerians, Egyptians, and Chinese each developed a unique system of writing. Underlined is: Sumerians Egyptians Chinese A- simple subject B- compound subject C- complete

49. ## Math

Two-fifths of the instruments in the marching bands are brass. One-eighth of the brass instruments are tubas. what fraction of the band is tubas? if there are 240 band instruments total, how many are tubas?

50. ## Basic programming principles

Is the following true or false? b + c (d + e) * 4 where b = 4, c 20, d = 4 and e = 17

Which choice best describes the underlined word or words in the sentence? Could the Polynesian Islanders really have found their way across the Pacific Ocean? Underlined is: Could ________ have found A- simple predicate B- complete predicate C- compound

52. ## Physics

A boy walk's 1kg duewest and den 1kg duenorth find it resultance displacement and it direction to d horizontal

53. ## Physics

Compressed air is used to fire a 50g ball vertically upward from a 0.60-m-tall tube. The air exerts an upward force of 3.0N on the ball as long as it is in the tube. How high does the ball go above the top of the tube?

In which of the following sentences is the subject understood? A- Slowly taxiing up to the terminal was a huge airplane. B- It was painted with pink stripes and yellow circles. C- Step up to the desk and give the clerk your ticket. D- You are on your way

Write a system of equations to match each of these problems. Then solve the equations using the method... Substitution, or linear combinations. _____________________________________ 1. Dan is 4 years older than his brother Gabriel. Together their ages

56. ## organic compounds

Discuss the types of trace elements in organic compounds.

57. ## Math

The length of a rectangular board is 10 cm longer than its width. The width of the board is 26 cm. the board is cut into 9 equal pieces. What is the area of each piece? What are the possible dimensions of each piece?

58. ## English

Is this sentence written correctly? The boy came back from the stage with afterthoughts.

59. ## Materials Science

An isotropic epoxy resin (E=2GPa, ν=0.3) is reinforced by unidirectional glass fibers (Eglass=70GPa), aligned in the 2 direction, such that the fiber composite is transversely isotropic, with the 1-3 plane being the plane of isotropy. The elastic

60. ## geometry

a school playground is the shape of a rectangle 500 ft long and 100 ft wide. If fencing costs \$16 per yard, what would it cost to place fencing around the playground

61. ## Trigonometry

Identify the amplitude and the period of the function c(x) = 3cos (x + π).

62. ## chemistry

What is the volume of 6M H2SO4 required by the balanced equation to react with the CuO to produce 0.025 moles of copper(ii) sulfate. Report the volume needed BEFORE allowing for excess in milliliters to two significant figures. Don not include units in the

63. ## Chemistry

The combustion of hexane can be represented by the following equation: __C6H14 (g) + __O2(g) → __CO2(g) + __H2O(g) What is the mass of carbon dioxide produced?

64. ## Trigonometry

A little confused on this one... Find the amplitude and the period of h(x) = 1/2 cos (-πx).

Which choice best corrects the run-on sentence? The Big Dipper is easily spotted it looks like a cup with a long handle. A- The Big Dipper is easily spotted. Looking like a cup with a long handle. B- The Big Dipper is easily spotted. It looks like a cup

66. ## Math help!

Identify the property of integers being illustrated in each of the following: a:(-2)(3) ¸ I b: (-4)0=0 c: -2(3+4)=-2(3) + (-2)4 d: (-2)3=3(-2)

67. ## Math

Write an integer to represent the final temperature. The day started out at 6am as 32 degrees rose 24 degrees by noon and dropped 14 degrees at 6pm.

68. ## English

Which option was used to revise this sentence? I am so glad to see you! Am I ever glad to see you!

69. ## Math- Multi-step word problems

A canoe in still water travels at a rate of 10 miles per hour. The current today is traveling at a rate of 3 miles per hour. If it took an extra hour to travel upstream, how far was the trip one way? about 14 miles about 15 miles about 16 miles about 17

70. ## History

What is the importance or effect of these 1. France is a latecomer in the scramble for New World real estate. 2. French Catholic missionaries, notably the Jesuits, labored zealously to save the Indians for Christ and from the fur-trappers. 3. William Pitt,

71. ## english

If you eat your vegetables, you'll get dessert later.

72. ## History

What is the importance of Samuel de Champlain colonizing Quebec for France

73. ## Math

An electrician was hired to run the wires for a surround-sound stereo speaker system. She purchased 2 rolls of 14-gauge speaker wire. Each roll contains 4 m of wire. For each of 2 speakers, 2 ft. of wire are required. For each of the other 2 speakers, 11

74. ## College algebra

There were 40,000 people at a ball game in Los Angeles. The days receipts were 298,000. How many people paid \$12.00 for reserved seats and how many paid \$5.00 for general admission?

75. ## math

A car rental company charges \$100 for the first 50 miles and \$10 for every additional 10 miles. If Gregg traveled 150 miles, how much would he pay? I know the answer intuitively is \$200, but how do I set up this equation

76. ## physics

A 220-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 26.6° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.863, and the log has an

77. ## Math

A rectangular floor measures 546cm by 714cm. You have a lot of square tiles, each measuring 42cm by 42cm. How many of these tiles will you need to tile the floor?

78. ## Chemistry

Calculate the number of moles in 2.65x1015 atoms of 14C.

79. ## math

if total ticket sales were \$1625 adult tickets were \$7.00 and student tickets were \$3.00 and twice as many students bought tickets than adults, how many students and adult tickets were sold?

80. ## chemistry

A 30 ml sample of unknown strong base is neutralized after the addition of 12 ml of a 0.150 M HNO3 solution if the unknown base concentration is 0.0300 M give some possible identities for the unknown base

81. ## Science

What is an indicator and how are they useful to scientists?

82. ## Math

If 8 jump ropes and 4 dolls cost \$64, and 4 jump ropes and 8 dolls cost \$92, how much will 12 jump ropes and 12 dolls cost?

83. ## Math

A car rental company charges \$100 for the first 50 miles and \$10 for every additional 10 miles. If Gregg traveled 150 miles, how much would he pay?

84. ## Printing press

• What social, cultural, political, and economic impacts did this event have on society?

85. ## history

which of the following was the primary cause of the Balkan wars conducted during the Clinton administration?

86. ## math

having trouble with these 2 problems & the process. -50 3/4 +(-6.05)+ 100= and 23 7/8 - 15 3/40 +(-3 4/5)= help please!!!!

87. ## Chemistry

-Describe the zero sum rule -True of False: The formula for the nitride ion is N^(-3) -True of False: The stock system shows the charge on the negative ion

88. ## Math

On what day in the year 1943 was the earth 300 000 minutes old? (give the month and day)

89. ## Chem 400

A 55 uL of hexane is injected in a mass spectrometer. how many protons are in the 55 uL injection? (density Hexane= 0.6548 g/mL)

90. ## math

In a class of 100 students 50 are footballers 30 are basketballers and 20 are both basket ballers and footballers represent the above information ina venn diagram

91. ## MATH

A water plant can process 25 million gallons of water a day. How many gallons of water does it produce per hour? Round to the nearest hundredth.

92. ## physics

how far will you travel if you maintain a speed of 100m/s for 30s?

93. ## Physics

A Volkswagen runs straight off a cliff. The Volkswagen is traveling at a speed of 39.0 m/s when it leaves the road. If the cliff is 16.0 m high, how far horizontally does the car travel before it smashes into the ground below?

94. ## physics

A bicyclist accelerates –0.87 m/s2 during a 3.8 s interval. What is the change in the velocity of the bicyclist and bicycle?

95. ## 3rd garde math

what is 12 x 12? im having a hard time can anyone help me??????????

96. ## Stat

Thirty randomly selected students took the calculus final. If the sample mean was 89 and the standard deviation was 6.2, construct a 99% confidence interval of the mean score of all students. Assume that the population has a normal distribution

2x^2+5x-1=0

98. ## physics

(a) A truck of mass 1870 kg travelling at 80 km/h braked to 55 km/h then continued at that speed. How much work was done by the brakes during that period? I just wanted to check my answer... 243334 J ??

99. ## Stat

Of 84 adults selected randomly from one town, 62 have health insurance. Find a 90% confidence interval for the true proportion of all adults in the town who have health insurance. Please help mr solve.

100. ## Math

find limit of h->0 [f(8+h)-f(8)]/(h) where f(x)=sqrt(x)-8

3/8+9/7

102. ## english

So i was reading an article and the question was ¨what heroic act did malala participate in? What does the question mean when it says 'heroic act ' thank you

103. ## government

All legislative Powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives. what does it mean??

104. ## math

Let y= -3x-2. Find the value of y (in parts (a)-(d)) for each of the following values of x: a: -1 b: 100 c: -2 d: -a in terms of a e: For which values of x will y be -11?

105. ## statistics

In frequency distribution table, I got two mode classes.then how do I calculate actual mode?

106. ## Math

Aiden drew a square that has an area greater then Dalton's rectangle. what could the sides of austin's square be?

107. ## Algebra

If x is an integer and x is not equal to zero, which of the following are always positive and which are always negative? a: -x to the power of 4 b: (-x) power of 4 c: x to the power of 4 d: x e: -x

108. ## Algerbra math

(7x^2+3x+9)+(2x^2+5x-2)

109. ## mechanics

A 6kilo gram package is placed on chat as shown at point A. the coefficient of friction between the package and and the chat is 0.15 . if the package is released from rest at A. determine the velocity of the package when it reaches the bottom of the chat

110. ## english

It's direct indirect objacts stuff can someone help me

111. ## Chem (general)

Little confused on how to get part B. A) if 3.00g of hydrosulfuric acid is reacted with 3.00g of silver nitrate, calculate the mass (in g) of solid silver sulfide formed. Which is the limiting reactant? (Hint: the other product is nitric acid). B)

112. ## Chemistry

Calculate the number of moles in 8.50x1015 atoms of 4He.

113. ## chaitanya

A car moving with constant acceleration covers the distance between two points 180m apart in 6sec.its speed as it passes the second point is 45m/s.what is its acceleration and its speed at the first point.

114. ## social studies

Television is believed t have no affect on people's opinions and decisions.

115. ## Biology

A 50 year old male who is not overweight and has normal blood cholesterol levels suffers a heart attack. Propose a possible explanation i think the answer would be genetics...

116. ## Algebra

Estimate each of the following and then use a calculator to find the actual answer: a: 343+ -42 - 402 b: -1992 + 3005 - 497 c: 992 - -10,003 - 101 d: -301 - -1303 + 4993

117. ## Math

Hi, I have two questions here I need help with, thank you in advance. 1. Peggy scored 68 on her first three tests of the term. What would she have to score on the fourth test to have an average of 70 on the fourth test? 2. If you were to place the digits

118. ## Physics

(a) A truck of mass 1870 kg travelling at 80 km/h braked to 55 km/h then continued at that speed. How much work was done by the brakes during that period? I just wanted to check my answer... 243334 J ??

119. ## Sqare roots

which two square roots are used to estimate the square root of 47? I'm confused I don't know what this means.

Which choice is a complete sentence? A- Stacks of books to be shelved. B- When Francine cooked dinner for the first time. C- The actor played the leading role. D- Gave her a blue bicycle for her birthday. I think it is C.

Which choice is a sentence fragment? A- Swept the floor first, then washed dishes. B- Turning on the light, he suddenly got a shock. C- In the first year, Julio won three blue ribbons. D- Maggie’s photos were displayed in the lobby. I think it is A.

Which choice best describes the underlined word or words in each sentence? For several decades, satellites around the earth have broadcast signals and monitored weather. Underlined is: satellites A- complete subject B- simple subject C- compound subject D-

123. ## CalcPhys

In an electricity experiment, a 1.30g plastic ball is suspended on a 56.0cm long string and given an electric charge. A charged rod brought near the ball exerts a horizontal electrical force F⃗ elec on it, causing the ball to swing out to a 25.0∘ angle

124. ## Pre Calculus

e^-x sqrt(3e^2x -5/4) = e^x No idea how to approach this.

125. ## Chemistry

a) Name the colors of visible light (the colors of the rainbow) in order of increasing energy. Indicate the approximate wavelength associated with each color. b) When excited, elemental sodium gives off a distinctive color that is used often in street

126. ## math

A game room has a flooring that is 120 feet by 75 feet. A scale drawing of the floor on grid paper uses a scale of 1 unit:5 feet. What are the dimensions of the scale drawing?

127. ## Math

1. A 16-team bowling league has 800,000 to be awarded as prize money. If the last-placed team is awarded 12,500 in prize money and the award increases by a constant amount for each successive finishing place, how much will the first-placed team receive? 2.

128. ## Math

Each letter in this addition problem stands for a different digit, but every letter stands for the same digit everywhere it appears. For example, all of the C's stand for the same digit. Reconstruct the problem to find the value of SCENE. CUTS +CUTS ------

129. ## MATH

ln (3x-2/x-1)

130. ## Science quick question

bacterial structures which could survive unfavorable conditions are called? Spores Flagella Cysts Granuless

131. ## Physics

What is the rate of deceleration of a 1400-kg SUV that is going 75.0 km/h and then slows to 25.0 km/h in 8.20 s?

132. ## Pre-Calc

Which pair(s) of functions are inverses? There may be more than one correct answer. a.) f(x) = x - 12, g(x) = x + 12 b.) f(x) = 3x, g(x) = 1/3x c.) f(x) = 4x, g(x) = -4x d.) f(x) = 2x + 1, g(x) = 2x - 1 Would the answer be just letter B.)?

133. ## Math Help

Find the inverse of f(x)=3x+4/5

134. ## english

How to understand and rewrite about the meaning of the quote?

135. ## Math Definition Help

A function f(x) has an inverse function, g(x), if and only if f(x) is one-to-one. True or False? My answer: True

136. ## Physics

Little Timmy falls down a well and hits the water 1.5s later. Determine the distance from the top of the well to the water below. Just an equation would be fine. Thanks in advance.

137. ## Literature

My homework questions says: "Write a letter to Marianne Moore, describing your response to "Poetry." Cite specific passages from her poem." I understand how to cite the passage, however, I can't think of how to really "respond" to her poem. Could you maybe

138. ## College Physics

A box with a mass of 3.5 kg is resting on a horizontal frictionless incline plane which is inclined at 28 degrees. Another force is applied at an angle of 13 degrees above the direction parallel to the incline. What does the magnitude of this force need to

139. ## physics

How can I find the mass of a weight in pounds? The question asks to find the mass of Fw=5.5*106 lb (10 to the 6th) Do I divide by 9.8? and or convert to Newtons?

Which choice best describes the underlined word or words in each sentence? The inhabitants of the Marshall Islands made complex instruments for navigation by the stars. Underlined is: The inhabitants of the Marshall Islands A- complete subject B- simple

141. ## Basic programming principles

Is the following true or false? A * 3 >= B – 14 \ 3 AND F OR C

142. ## Basic programming principles

Piet earns R20 per hour, if he works more than 30 hours then he receives an extra R8 per hour, will the following statement be correct or incorrect (only type in correct or incorrect at your answer space) If hoursworked > 30 then Salary = salary +

143. ## Biology

What are some of the reasons why everyone does not have the same pulse rate at rest. I think is would be your age, weight,stress.. but i am not sure

144. ## math

tom and max has 72 football card

145. ## Science

-Describe the zero sum rule -True of False: The formula for the nitride ion is N^(-3) -True of False: The stock system shows the charge on the negative ion Answer this Question

146. ## math

a car traveling in a straight line has a initial velocity of 12.0 m/s.zoe steps on the gas and accelerates at at rate of 2 m/s2.The care ends up with a final velocity of 20.0 m/s.how long did it take zoe to reach this speed

147. ## Physics

I don't know if my answers are right. D: 1)Why is a time interval always positive? I'm not really sure but I wrote down something with vectors and scalars. 2)If the average acceleration of a car is zero in a given time interval, what can you tell about the

Which choice best describes the underlined words in the sentence? Use a star chart to identify the stars and planets on a clear night. Underlined: (The whole sentence is underlined) A-simple predicate B- compound predicate C- complete predicate D- none of

149. ## Math

Hot dog buns come in packages of eight Mrs. Wilson has a total of 40 hot dog buns draw a picture to find out how many packages of hot dog buns Mrs. Wilson has

150. ## slopes

what is the slope of the line (4,9) and (2,9)?

151. ## social studies

why did it take so long for north america to become settles by the natives?

152. ## Science

Describe the changing definitions of an element?

153. ## science, chemistry, biotechnology

"You're creating a standard curve for pyruvate. You need to create a standard with 20 micromoles in a cuvette. How much 100 mM pyruvate would you need?" My understanding is to solve for VOLUME using the equation: micromoles = (mM)(volume in ml) 20

154. ## Math

Over 10 plays, a football team gained 63 yards. On 4 of the plays the team gained 0 yards, on 1 play the team lost 3 yards and on 1 play the team lost 6 yards. What was the team's mean gain, in yards, per play for the remaining plays?

155. ## Literature

My homework question says: "Write a response to Marianne Moore, describing your response to "Poetry." Cite specific passages from her poem." I understand how to cite specific passages, however, I am having trouble thinking of a way to "respond" to Marianne

156. ## math

Fern rounded to the nearest ten to estimate 548-132. She subtracted 540-130 and got 410. Is Fern's estimate correct? Explain.

157. ## Basic programming principles

Study the following codeC = A * B + 7 mod 3 If A > C then Display “A has a higher value that C” B = A – C Else Display “A is equal to or less than C”B = C – AEndifDisplay “the value of B is now “, BDisplay “the value of C is now”, C

158. ## physics

One hazard of space travel is debris left by previous missions. There are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. Calculate the force

159. ## College Alg

The revenue and cost equations for a product are R=x (50-0.002x) and C= 12x+ 150000. Where R and C are measured in dollars and x represents the number of units sold. How many units must be sold to get a profit of at least 1,650,000

161. ## Basic programming principles

Piet earns R20 per hour, if he works more than 30 hours then he receives an extra R8 per hour, will the following statement be correct or incorrect (only type in correct or incorrect at your answer space)If hoursworked > 30 then Salary = salary +

162. ## Basic programming principles

If the value of K is equal to 6, increase the value of A by 5%, if the value of K is equal to 4, decrease the value of A by 8, if the value of K is equal to 7, add the value of B to the value of A, otherwise decrease the value of A by 12%Will the following

1. A percentile rank represents the percentage of people who scored at or below the test score. True False 2. People who have high resting heart rates usually have high levels of cardiovascular fitness. True False 3. Resting heart rate is usually measured

164. ## Basic programming principles

The for next statement is used to display the consecutive numbers from 1 to 10K = 1 For I = 1 to 10 Display k, “ “K = k + 1 Next I The output will be 10 9 8 7 6 5 4 3 2 1 Will the above statement output be correct or incorrect

165. ## Basic programming principles

The user wants to display a message a fixed number of times, if you know the message and the number of times (number) it must be displayed what would be the for statement, will this be correct or incorrect ONLY indicate correct or incorrect at your answer

166. ## Algebra

Write a system of equations to match each of these problems. Then solve the equations using the method... Substitution, or linear combinations. 1. Maria started her savings account with \$105. She adds \$10 to it each month, including the first month. Jana

167. ## Science quick question urgent check my answer

bacterial structures which could survive unfavorable conditions are called? Spores Flagella Cysts Granuless My answer: spores?

168. ## algb

Z the Intergalactic Candy Store for \$1.75. Jeejuu paid \$1.88 and got 4 xylobars and 1 yackity. How much Dado pay for 1 xylobar and 2 yackities?imak bought 3 xylobars and 5 yackities from .....Write a system of equations. Then solve the equations using the

169. ## Math

One hundred sixty acres is a square with a side length of one-half a mile. How many hectares are in one square mile?

171. ## Chemistry

Iron reacts with HCl solution to give H2 gas and Fe2+ ions. Suppose that 3.6 g of iron are to be dissolved in 1.2 M HCl. What is the minimum volume (in mL) of the acid solution required to react with all of the iron?

172. ## Pre-Calculus/Trig...

Help Please For the function defined by: f(x)= (x^2,x≤1) (2x+1,x>1) Define f(0). and also how would i graph f(x)?

173. ## Chemistry/Math

convert 0.01403 grams to ppm please show all step

174. ## algebra

5 (x + 10) + x ?? 6x + 15 5x + 15 6x + 50 4x - 50

175. ## physics

A stone is thrown upward a 20 m/s. It is caught on its way down 5.0 m above where it was thrown. How fast was it going when it was caught?

177. ## Liturature

Stephen hates procrastinating at work.

178. ## Math help!

The number of students taking sophomore mathematics at Union College has been decreasing at the rate of 20 per year for many years. Assuming this trend continues, write a multiplication problem that describes the change in the number of sophomores taking

179. ## Math

Over 10 plays, a football team gained 63 yards. On 4 of the plays the team gained 0 yards, on 1 play the team lost 3 yards and on 1 play the team lost 6 yards. What was the team's mean gain, in yards, per play for the remaining plays? Could somebody PLEASE

180. ## Math

(Checking my answers!) Marco and Drew stacked boxes on a shelf. Marco lifted 9 boxes and Drew lifted 14 boxes. The boxes that Drew lifted each weighed 8 lb less than the boxes Marco lifted. m − 8 14(m − 8) ** 9(m + 8) 112m Two stores sell the same

181. ## physics

A river flows toward 90 degrees. A river boat pilot heads the boat at 297 degrees and is able to go straight across the river at 6 m/s. What is the velocity of the current? What is the velocity of the boat?

182. ## Math

fun center rental popcorn machines for \$20 per hour. In addition to the hourly charge, there is a rental fee of \$32. Is the number of hours you rent the popcorn machine proportional to the total cost?

183. ## Math

List these numbers from least to greatest 7/3, 3/4, 2/3, 0.5, 1.3

184. ## Algebra

For every 1/2 mile sira jogs, she walks 3/4 mile. What unit rate gives the number of miles Sira jogs for every mile she walks.

185. ## Math

What is the answer to 4 square root 1280 r^8 t^12 ?

186. ## Trigonometry

A wheelchair ramp has an angle of 6 degrees,side length 29ft and height 3ft. For a safe ramp,the ratio of vertical distance: horizontal distance needs to be less than 1:12. Would the ramp be considered a safe ramp? Please show me how to do this! Thank you

187. ## Math help!

Find the first five terms of the sequence whose nth term is given. a: (-2)^n + 2^n b: n^2(-1)^n c: |10 - n^2|

188. ## government

requirenmnets of article 1 of the constitution

Which choice is a sentence fragment? A- Anne looked forward to the trail ride. B- Her horse and gear were all ready to go. C- It poured rain on the morning of the ride, the bad weather continued. D- Canceling the ride due to the bad weather. My choice is

1) A high-speed maglev train is traveling with a changing velocity. what can be said about the forces acting on the train? 2) An automated vehicle in a warehouse is traveling at a constant velocity. what can be said about the forces acting on the vehicle?

191. ## physics

I had asked a question.why when solid body with greater density than water is when dropped from floating boat water level rises? the answer has been given that as the solid body is more dense than water displaces less fluid as compared to when it was a

192. ## english

10 home economics related subject

193. ## Math 1

write an equation that represents the following situation. Let x= the number of adults. Your equatin should start with "1220=" and use x as the only variable.. The number of students attending the fall play was 150 more than the number of adults attending.

194. ## Health

True/False: The pituitary gland secretes adrenaline. False

195. ## Math

y - y1 = m(x-x1) solve for x1

196. ## Pre Algebra

Please help- I need to write a rule for each function. I have watched all the video's but this chart does not seem to have a pattern x y -4 4 0 6 2 7 4 8

197. ## Math

A study shows that 6% of household appliances fail during any given year. If a person has 6 household appliances, what is the probability that exactly 2 of them will fail next year? (x) npq = P(.6+.94)=1 6*2=12

198. ## Criminal Justice/Juvenile Delinquency

UCR data consistently indicate that males account for about _________ of juvenile violent crime. a. 55% b. 80% c. 68% d. 90%

Can you check my answer below, please? Elizabeth did an experiment to test the effect of salt water on rusting rate of a nail. She put 3 nails in the same bowl of salt for one week. How could she improve her experiment? Ans: 1) place each nail in a

200. ## math

The area of a circle is found with the formula A =〖πr〗^2, where π represents 3.14. If a tile artist is placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet, what is the approximate radius of the circle in feet?

------A part is on an assembly line going between one station and another. if the part has a constant velocity ( and constant acceleration) , complete a sketch of the following two corresponding graphs. do not worry about numbers, but only the shape of the

202. ## Math

Over 10 plays, a football team gained 63 yards. On 4 of the plays the team gained 0 yards, on 1 play the team lost 3 yards and on 1 play the team lost 6 yards. What was the team's mean gain, in yards, per play for the remaining plays. I did 63 plus 9

203. ## Analog Electronics

A 50mV signal is applied to the base of a properly biased transistor with r'e=10ohms and RC=560ohms. Determine the signal voltage at the collector. In my text book for this section there are formulas Vb=Ier'e Vc=IcRC Vc=IeRC Do I take 50mV/560ohms to get

204. ## math

Which diagram correctly represents this sentence?

205. ## Math

Suppose an urn contains 10 balls numbered from 1 to 10. Someone draws 3 balls simultaneously from the urn (i.e. without replacement.) What is the probability that the lowest number drawn is 2? (8C3)/(10C3) but I know that is wrong. I also tried

Which choice is a complete sentence? A- Especially since the light bulb was invented. B- Except for the last paragraph in the newspaper article. C- A drawing of exceptional beauty and depth. D- Squirrels darted along the telephone wires. My choice is D.

207. ## Math

A rectangular pool measuring 6 feet by 12 feet is surrounded by a walkway. The width of the walkway is the same on all four sides of the pool. If the total area of the walkway and pool is 520 square feet, what is the number of feet in the width of the

Identify the best correction of the clause fragment. When you get to the end of the block. A- Delete “of the block.” B- Change “you” to “we.” C- Change “When” to “After.” D- Add “Turn” to the beginning of the fragment. My choice is

209. ## chem

OH attached to a benzene ring attached to ch2-ch2-ch3 what would this be called?

210. ## Health

Does adjustment disorder occur in bouts?

211. ## chemistry

How many milliliters of a substance with a specific gravity of 0.88 would be needed to have 0.75 pounds of it?

212. ## Algebra

Tom went on a 3 Day road trip in which he drove the same number of miles each day. He drove 42 mph the first day. He drove 48 mph the second day. On the last day he drove a x mph. His average speed for the whole trip was 47 mph. Find x and write your

213. ## Algebra 2

I need to use zero product property on these equations and I just need a few examples to get myself started on the other problems since I don't understand it at all. :c Help is appreciated. Thanks in advance. f(x)=x^2+8x+12 g(x)=6x&2+20x-16

214. ## To : bobpursley

Please could you help me on my question:)

Identify the best correction of the clause fragment. A day or two to discuss the matter thoroughly? A- Move “thoroughly” to the beginning of the fragment. B- Change “to discuss” to “discussed." C- Add “After” to the beginning of the fragment.

216. ## Chemistry

To make 1.5 L of 0.1 M NaCl from a 2.52 M stock solution, you would need to take ____ mL of the stock solution and add _____ mL of water.

217. ## Health

What are some symptoms of schizophrenia? Warning signs?

218. ## Political science

Given the concerns of national Republican leaders, why is immigration reform having such a hard time winning a majority of Republican votes in the House? We were supposed to use data we found - we had to find the population percentage of Latinos in every

219. ## Finite Math

Laurie and Craig have purchased a new home. They paid \$25,000 down and have a 15-year mortgage for which they pay \$980 per month. If the interest is 8.25% compounded monthly, what did the house that Laurie and Craig purchased originally cost?

220. ## Political science

Given the concerns of national Republican leaders, why is immigration reform having such a hard time winning a majority of Republican votes in the House?

221. ## calculus

Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. x+y=4,x=5−(y−1) 2 ;

222. ## Precalculus

Abey Numkena is an interior designer. She has been asked to locate an oriental rug for the new corporate office. As a rule, the rug should cover 1/2 of the total floor area with a uniform width surrounding the rug. a) If the dimensions of the room are 12

Which choice does not contain a run-on sentence? A- Using the Big Dipper, you can find the North Star just follow an imaginary line through the Dipper’s two end stars. B- Using the Big Dipper, you can find the North Star. Just follow an imaginary line

224. ## english

help on thesis writing

225. ## math

If x is an integer and x is not equal to zero, which of the following are always positive and which are always negative? a: -x to the power of 4 b: (-x) power of 4 c: x to the power of 4 d: x e: -x

226. ## Math

1/(a-1) + 1/b = c solve for a

227. ## Finite Math

Malika Agwani starts her career at the age of 25 and makes equal monthly deposits for 35 years into an annuity that earns 6.25% compounded monthly. She plans on retiring the age of 60 and would like to withdraw \$3000 monthly for 25 years, bringing the

228. ## Physics

A horizontal force of 150 N is used to push a 42.0-kg packing crate a distance of 6.60 m on a rough horizontal surface. If the crate moves at constant speed, find each of the following.

229. ## Writing

What is discourse convention? Please give some examples.

230. ## English

Young readers often enjoy the Nancy Drew mystery books. Is enjoy past present or future

231. ## math

The diameter of a circle is increased by 50%.The area is increased by a. 50% b. 100% c. 125% d. 200% e. 250% please answer and explain

232. ## Math Multiplication

What are the factor pairs of 642? Please don't ask what I don't understand because I cant find the answer

233. ## Maths

Find the highest common factor of 693 and 1365?

234. ## 1 math question

8. Use the Distributive Property to simplify. Show all steps. 8(6 – 2)

235. ## math

Im the same person from my other questions! Two stores sell the same computer for the same original price. Store A advertises that the computer is on sale for 25% off the original price. Store B advertises that it is reducing the computer’s price by

236. ## physics question solved

What is the rate of deceleration of a 1400-kg SUV that is going 75.0 km/h and then slows to 25.0 km/h in 8.20 s? Figured it out, Don't worry about the mass, just solve for Deceleration. which is deltavelocity/delta time >>Subtract First(75 - 25) = 50

237. ## math

the length of a table is 6 feet. On a scale drawing, the length is 2 inches. Write three possible scales for the drawing.

238. ## math

Pam bought a new bedroom suit for \$2588.she made a down payment of \$188 and paid the remaining amount in 24 equal monthly payments.How much did she pay for each monthly payment? 188-24=164 is that how to do it? PLEASE REPLY BACK AND HELP

239. ## Math question? :c

Use the Distributive Property to multiply. Show all steps. 7(c + 4)

240. ## math

how we can knew the minimum value of the point on a curve?

241. ## Math plz.

Simplify the following expression. z – 2z + 4z + 6

242. ## chemistry

a system consisting of 1.5 mol CO2(g), initially at 15deg and 10 atm and confined to a cylinder of cross-section 10.0 cm2. it is allowed to expand adibatically against an external pressure of 1.0 atm until the piston has moved through 20 cm. assume that

243. ## Chem

3.297 g of a substance (containing only C, H, and O) is burned in a combustion analysis apparatus. The mass of CO2 produced is 3.626 g, and the mass of H2O produced is 9.897×10-1 g. What is the empirical formula of the compound?

244. ## geometry

a convex polygon has a pattern in which each angle alternates between being 140 degrees and being 148 degrees they give me 5 sides and want me to figure out how many angles

245. ## Trigonometry

Hi this is a two part question. I got the first part but can't figure out second. Please help! A home is designed to keep sun off outside south wall during summer months and have wall exposed to dun as much as possible during winter months. The highest

246. ## physics

An automobile with an initial speed of 3.25 m/s accelerates uniformly at the rate of 3.2 m/s2. Find the final speed of the car after 4.4 s. Answer in units of m/s

247. ## CHM 300

if the pKa of HCN is 9.21,what it its Ka?

248. ## chemistry

A solution is prepared by placing 23.9 g of KCl in a 0.500 L volumetric flask and adding water to dissolve the solid, then filling the flask to the mark. What is the molarity of an AgNO3 solution if 27.9 mL of the KCl solution react exactly with 45.0 mL of

249. ## Math

How do you solve (5,-1) -(2,-6) ________ (?,?)