# Questions Asked onAugust 27, 2012

1. ## psychology

Jason and Julia are preparing for a quiz in Psychology 101. Jason recites four reasons for seeking out a social support network. Julia, who has top grades in the class, gives her nod of approval to all but one of Jason's list. Which one is she most likely

2. ## Physics

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.8 m/s2 for 4.4 seconds. It then continues at a constant speed for 13.5 seconds, before getting tired and slowing

3. ## Science

At the end of 2 seconds of free fall an object released from rest will have a speed of A. 5m/s B 10m/s C 15m/s D none of the above

4. ## Math

How many lines of symmetry does an oval have?

5. ## algebra college

find the remaining zeros of f. degree 4 zeros i, -18+i enter the remaining zeros of f please help me out!

6. ## Physics

The leader of a bicycle race is traveling with a constant velocity of +11.9 m/s and is 10.7 m ahead of the second-place cyclist. The second-place cyclist has a velocity of +9.10 m/s and an acceleration of +1.20 m/s2. How much time elapses before he catches

7. ## physics

A red ball is thrown down with an initial speed of 1.0 m/s from a height of 27.0 meters above the ground. Then, 0.6 seconds after the red ball is thrown, a blue ball is thrown upward with an initial speed of 24.5 m/s, from a height of 0.7 meters above the

8. ## algebra

Write a rule in words and as an algebraic expression to model the relationship in each table. The local video store charges a monthly membership fee of \$5 and \$2.25 per video. 1 video is \$7.25 2 videos are \$9.50 3 videos are \$11.75

9. ## psychology

-In respect to the foundations of prejudice, social identity theory is associated with the concept of A. modern racism. C. ethnocentrism. B. self-fulfilling prophecy. D. stereotypical discrimination.

10. ## psychology

Two psychology students are in a heated discussion about the nature of prejudice. Mavis insists that that when people get their identity from membership in a political action group, they will generally express ethnocentrism. Martin argues that with or

11. ## Psychology

Two psychology students are in a heated discussion about the nature of prejudice. Mavis insists that that when people get their identity from membership in a political action group, they will generally express ethnocentrism. Martin argues that with or

12. ## OPTICS/PHYSICS-REALLY DO NOT UNDERSTAND THIS!

A POINT SOURCE OF LIGHT IS PLACED 50 CM ABOVE A CIRCULAR CARD OF DIAMETER 5CM, THE SOURCE BEING DIRECTLY ABOVE THE CENTRE OF THE CARD. WHAT IS THE AREA OF THE SHADOW ON THE FLOOR 70 CM BELOW THE CARD?

13. ## math

1. Which of the following numbers is an example of an integer? a. -15 b. 3/5 c. ^7 d. 0.252525... 2. Which statement is FALSE? a. Every integer is a real number. b. The number zero is a rational number. c. Every irrational number is a real number. d. Every

14. ## Math

What is the most probable next number in this list? 12, 1, 1, 1, 2, 1, 3

15. ## math

Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged \$120 for 3 days and 300 miles, while Mary was charged \$210 for 5 days and 600 miles. What does Best Rental charge per day and per mile?

16. ## psychology

particular factors encourage people to be drawn into liking one another. in this context the reciprocity of liking effect is primarily associted with? a.) exposure b.)propinquilty c.) similarity d.) physical attractiveness

17. ## Math

An aeroplane needs to fly due east from city A to city B at a speed of 400km/hr. However a 50km/hr wind blows constantly from the north. In what direction must aeroplane head and at what speed must it travel?

18. ## math

Damon has 4 times as many stamps as Julia. Julia has 4 times as many as Claire. Claire has 4 stamps. Write the number of stamps Damon has in both exponetial and standard form. :)

19. ## Algebra

John and two friends rent a canoe at a park. Each person must rent a life jacket. If the bill for the rental of the canoe and life jackets is \$41, for how many hours did they rent the canoe? tell me the answer and how you got it

20. ## psychology

Aggressiveness builds up in people because of human nature. It can be safely expressed before it reaches a “boiling point” through the catharsis offered by aggressive sports and games. These kinds of ideas are associated with A. instinct approaches to

21. ## math

Radius of a circle with a sector area of 3 square ft determined by a central angle 1/4 radian

22. ## math

name the property shown by each statement (3+y)+0=3+y

23. ## psychology

As discussed in your text, the Implicit Association Test (IAT) A. is based on a culture-free questionnaire. B. has revealed that most people aren’t prejudiced. C. requires subjects to react to a series of black and white faces. D. requires people to

24. ## MATH

1. A boat traveled 210 miles downstream and back. The trip downstream took 10 hours, the trip back took 70 hours. What is the speed of the boat in still water? What is the speed of the current? 2. Flying to Kampala with a tailwind a plan averaged 158km/h.

25. ## Maths A

Write down the period of the function y=cos x

26. ## equations and inequalitys

You are saving moneyto buy a \$200 video game system.You earn \$20 a week for doing chores around the house.You get \$35 from a reliative on your birthday.How many whole weeks will it take for you to have enough money to buy the system? You are charged 7%

27. ## Science

A 50N object falling in air experiences 30N of air resistance. The amount of net force on the falling object is A 0n B 20n C 50n D 80n

28. ## math

Solve the equation check for extraneous solutions 6/6-4x/=8x+4 I used/ / for the brackets posssible answers x=1 x=5/2 or x=2 x=5/2 x=5/2 or x=1 Not looking for just the answer, would like to know how to get it.

29. ## social studies

what information should be on a time line

30. ## math

ann wrote a three digit number. the digit inthe hendreds place is 4 less than the digit in the ones place. the digit in the tens place is two more than the digit in the ones place.the sum of the three digits is 16. what is the three digit number?

31. ## maths

in a boy's school,5/8 of the boys play football and 4/7 play rugby.if every boy play atleast one of the two games,ind the fraction of the boys who play both ?

32. ## math

mr harris bought 4 for \$0.50, mrs clarke bought 21 for \$1.00, mr montaro bought 1134 for \$2.00 and ms park bought 450 for \$1.50. what were they buying?

33. ## psychology

particular factors encourage people to be drawn into liking one another. in this context the reciprocity of liking effect is primarily associted with? a.) exposure b.)propinquilty c.) similarity d.) physical attractiveness

34. ## Math

What is the solution to the system of equations shown below? 2x-y+3z=8 x-6y-z=0 -6x+3y-9z=24

35. ## Physics

Man jogs 1.5 m/s. Dog waits 1.8 s then runs at 3.7 m/s. How far will they have each travelled when dog catches up to man? Answer in units of m

36. ## physics

if an object weighs 6 kgs on earth, what will it's weight be on mars

37. ## calculus 1

If you can program a calculator or computer, estimate the length of the curve f(x) on the given interval using largest n's. f(x)=56cos(x), for x is greater than/equal to 0 and x is smaller than/equal to pi/2.

38. ## Algebra 1

In 5 years time I will be 3 times as old as my son. In 14 years time, the sum of our ages will be 62. Today the sum of our ages is

39. ## English

What is the plural of scientist?

40. ## Math

WHERE DO I PUT THE PERENTHESIS TO MAKE THIS STATEMENT TRUE: 18+2*1+3 TO THE SECOND POWER

41. ## algeba

a consulting engineer's time is billed at \$60 per hour, and her assistant's is builled at \$20 per hour. A customer received a bill for \$580 for a certain job. If the assistant worked 5 hours less than the engineer, how much time did each bill on the job?

42. ## Math

401,000,000 in scientific notation

43. ## chemistry

the elements of group VII A form ions with a charge of: A) +1 b) -1 c) -2 d) +2 can u please explain too? thankyou

44. ## math

Use structure What property of addition is shown in the following number sentence. Explain

45. ## Maths A

When 3square root of 5= square root of a, find the value of a.

46. ## Maths A

Find the coordinates of the vertex of the parabola:y=x^2-8x+2

47. ## Maths A

When 3square root of 5= square root of a, find the value of a.

48. ## Maths A

A cylindrical can is open at both ends. It is of height 14 cm and radius 4.2 cm. Find the external surface area of the can.

49. ## Maths A

Sketch the graph of y=x^2-x and find the minimum value of y.

50. ## Chemistry

Write the net ionic equation for the reaction between sodium chloride and cobalt (ll) nitrate. so far i have... 2NaCl(aq)+ Co(NO3)2(aq)---> NaNO3(aq)+CoCl2(s)

51. ## Algebra 2

5/8 +3/4x = 1/16 this is what I have 3/4x = -9/16 1 = -3/4

52. ## physics with 6 questions

Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.3 m/s2 for 3.9 seconds. It then continues at a constant speed for 13.7 seconds, before applying the

53. ## physics

A car starting at x = 49 m accelerates from rest at a constant rate of 8.0 m/s2. (a) How fast is it going after 10 s? (b) How far has it gone (from x = 0) after 10 s? (c) What is its average velocity for the interval 0 t 10 s? NEED HELP!!!

54. ## Math

Knowing u = (4,0,-3), v = (x,3,2) and that the orthogonal projection of v on u is a vector of norm 6, determine x. Thank you

55. ## Physics

ohh sorry, in my first question... A 15 kg box sits on a horizontal FORCE. the coefficient of static fricition between the box and the surface is 0.70. if a force P is exerted on the box at an angle directed 37 degrees below the horizontal, what must be

56. ## following previous question

would what the nature of the shadow on the floor be if the point of source of light is replaced by a luminous disc of diameter 5 cm, whose centre lies directly above the centre of the card?

57. ## chemistry

if change in E= -1500J what does that mean? the system gained heat the surroundings lost heat the system did work the surroundings did work more information is needed please help.

58. ## Algebra 1

4x+(-9+3x)=-5

59. ## Healthcare Finance

George and Margaret Wealthy are in the 48 percent tax bracket, considering both federal and state personal taxes. Norman Briggs, the CEO of Community General Hospital, has been aggressively pursuing the couple to contribute \$500,000 to the hospital's

60. ## Math

The displacement of a particle is given by: x=t^3-7/2t^2+2t-1. Find the particles initial displacement. And find when the particle is at rest.

61. ## math

find the value of a and b , so that 10x to the power 4 + 17x to the power 3 - 62x to the power 2 + 24x -bx -5 +a,is divisible by 2x to the power 2 + 7x - 1 ?

62. ## ODE

what is the laplace transform of cost+4sint

Where will you find the thesis sentence in an introductory paragraph?

64. ## MATH

Suppose a bead maker wants to separate 10,000,000 beads into boxes.She will put 100,000 beads into each boc.Into which box would she put the 4,358,216th bead

65. ## social studies

Name two states that extend further south than louisiana?

66. ## chemistry

Calculating final concentrations. Your instructor asks you to add the specified quantities of 2M Tris pH 8.0 buffer to 140 ml of distilled water. Calculate the final concentration and dilution factor of each solution. a)10ml b)20ml c)140ml

67. ## Algebra

The attendance at a baseball game was 400 people. Student tickets cost \$2 and adult tickets cost \$3. Total ticket sales were \$1050. How many tickets of each type were sold?

68. ## Science

When you stand at rest on a floor the number of vertical force acting on you is A 0 B 1 C 2 D 3 E 4

69. ## chemistry

200X buffer is given in class.How much of stock sol and how much distilled water is used to make? a)50 ml of a 1X buffer solution? b)100 ml of a 20X buffer solution? c)10 ml of a 400X solution

70. ## algebra

Reduce answers to lowest terms. 1.) 2x/2x^2+5x-3 + 5/x^2-9 = 2.) x-3/12x^3-18x^2 - x+1/16x^2-24x = 3.) 2x/x^2-2x-15 - x-2/3x^2+9x =

71. ## Observing development of the young child

A collection of a child,s classroom work that's assembled by teachers, parents, and the child him self is a called a A, learning life B, collaborative portfolio C, development checklist D, gallery collection

72. ## math

Need help..... A child of height 1.2 metres stands 3 metres from the foot of a lamp post of height 2.8 metres, at the top of which there is a small source which can be considered as a point. What is the length of the shadow cast by the child upon the

You and your friend collect football cards.You tell your friend,"I have three times the number of football cards as you have." Your friend replies " You only have 80 more football cards than i have." How many football card do each of you have?

74. ## math

After you have worked out at the gym on a stationary bike for 49.0 minutes, the distance gauge indicates that you have traveled 15.7 miles. What was your rate in km/hr?

75. ## pre algebra

what is the value of the expression? 15-6/3.2+7-1

76. ## Observing development of the young child

A preschool in your class draws a square that's divided by lines. This shaped as knows as a A, mandala B, sun c, pictorial D, face

77. ## geometry

I was assiged a 51 question assigment today and its due tomorrow.I'm having a hard time with the following question: "If angle BFA=3r+12 and angle DFE=-8r+210,find angle AFE". PLEASE HELP!!!!

78. ## Math

Find the pattern and fill in the blank. 94 26 ___ 14 10

79. ## math

a circular opaque disk, 25 cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. Ascreen is placed 30 cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen. Ok, I have drawn a sketch and

80. ## math

solve the inequality 8/x+3/4/

81. ## math

what two number are exactly 9 unit segment from 2 on a number line.

82. ## algebra

one angle of a parrallelogram is 23 degrees less than six times the measure of the angle next to it.the sum of the measures of the angles is 180 degrees. find the measure of the adjacent angles of the parrallelogram.

83. ## maths

please help A circular opaque disk, 25 cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30 cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen

84. ## math

You have just opened a new nightclub, Russ' Techno Pitstop, but are unsure of how high to set the cover charge (entrance fee). One week you charged \$9 per guest and averaged 160 guests per night. The next week you charged \$11 per guest and averaged 140

85. ## computer

how to format my xp computer

86. ## Algebra

A.Driving from El Paso to San Antonia on a bus ...560 miles traveling at avg speed of 60 miles per hr how do I make a graph with the time & distance. B. have to estimate distance bus tvls in 2 hrs...2 3/4 hrs...3.5 hrs...7.25 hrs.. C.need to describe in

87. ## Science

Can someone tell me how to figure this out. Fido weighs 120N & carries Trixie who weighs 40N on her back. The support force on fidos feet is. 160n - 40n - 120n -more than 160n

May you please help me understand these questions? Thanks! 1. What does Spaz's story reveal about Spaz's origins? 2. With what is Spaz afflicted? In why way is it a blessing?

89. ## Math

What is the cost of a square farm that measures a quarter of a mile by a quarter of a mile at \$1000 per acre?

90. ## Physics

A car starts from rest and travels for 7.0 s with a uniform acceleration of +2.1 m/s2. The driver then applies the brakes, causing a uniform acceleration of -2.0 m/s2. If the brakes are applied for 1.0 s, determine each of the following. 12.6 m/s at

91. ## Search

You are a member of the 244th MP Bn. You and two other Soldiers are manning the Observation Post (OP). Three Iraqis civilians approach your post. You render the proper challenge and password and they don’t heed your warning. They become very violent and

92. ## maths

Can someone help please? A circular opaque disk, 25 cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30 cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen

93. ## finance math

A car dealer purchased 2 cars, one for \$1500 and the other for \$20000, He then sold the first car at a loss of 14% and the second car for a profit of 15%. Find the dealer¡¯s profit for the whole transaction and express the answer as a percentage of his

94. ## Science

check answer please. An object is pulled with 3 forces: 1 at 20n to the right another at 40n to the right and the third at 30n to the left. The net force is 30n to right

What were some of the causes of the financial crisis and how do you think they could be prevented? Do you think steps are being taken? Why or why not?

96. ## english

i think (there, their, they're) son is the quarterback of the team

97. ## MATH

Where do I place the parentheses to make 16-30/10+5=14 true

98. ## math

shoshana is going to use 12 base-ten blocks to model the largest possible number less than 999. then she will use another 12 blocks to model the smallest possible number less than 999. what are the numbers?

99. ## Physics

A car traveling 80 is 120 behind a truck traveling 66 . How long will it take the car to reach the truck?

100. ## Physics

A car traveling 80km/h is 120m behind a truck traveling 66km/h. How long will it take the car to reach the truck?

101. ## science

Suppose your room had been 20 meters wide. Express this width in μm

102. ## English

1. When does the market open? It opens every five days. 2. How often does the market open? It opens every five days. 3. How many times does the market open? It opens every five days. (Which question is correct? Are all acceptable?)

103. ## Research

300-word summary of your business research process by describing the business research proposal from your experience in the workplace or in an article you find through the University Library

104. ## math

Give two equivalent fractions for the smallest amount of problems you need to complete correctly on a homework assignment to get 85%

105. ## phillosophy

How would you explain how theology and philosophy are different. i have to writ 700 words on this but all i have is what they mean pleas help im stuck. I also have to use Use arguments from at least one Christian source, one Muslim source, and one Jewish

106. ## Chemistry

I am trying to figure out how to make 275 gallons of a 5% NaOH solution. I know that 275 gallons weighs 2294.875 lbs. How many lbs. of NaOH woul it take to make the above mentioned solution?

107. ## Speech

What would you say interpersonal communication means to you?

108. ## math

a baseball team has already played 37 games and won 21 games. The season has a total of 63 games. How many more games do they have to win to keepthe same winning percentage? (answer should be a whole number)

109. ## Math

I am stuck on a problem. Can Somebody tell me what the next number is in the pattern 9,11,15,20,25?

110. ## Economics

Brian is taking three courses this semester: economics, statistics, and finance. He has decided to spend 19 hours per week studying (in addition to attending all his classes) and his objective is to maximize his average grade, which means maximizing the

111. ## Speech

What are the most important skills to maintaining healthy interpersonal relationship?

112. ## Math

Pearson homework does anybody have an acount I Ned your help

113. ## Human Biology

When you eat a salad with lettuce, croutons, hard-boiled egg, bacon bits, and salad dressing, which one of those components will pass through your body with the least digestion? Why?

114. ## Physics

A speed skater moving across frictionless ice at 8.0 m/!@#\$%^&s a 5.7m-wide patch of rough ice. She slows steadily, then continues on at 6.5m/s. What is her acceleration on the rough ice?

115. ## operations mgmt

Consider the six-step process in the Process 1 tab where the processing time for each step is uniformly distributed, for which processing times can range from 12 to 18 minutes (any value in that range is as likely to occur as any other in that range)

116. ## Observing development of the young child

A type of communication that isn't only about the present and that promotes higher level thinking such as planning and reminiscing is called A,early production B, chanting C, child-child conversation D, decontextualized talk

117. ## world history

Describe the sread of sedentary agriculture outside the older civilized areas?

118. ## math

The floor area of a rectangular storm shelter is 65 square meter, and length is 6 1/2 meter. what is th width of the storm shelter

119. ## Precalc-Factoring

I am so confused. How do I factor: 35x^2 - 46x + 15

120. ## Observing development of the young child

Many play researches beleve that children imaginations are not stimulated by the use of? A, open- ended materials , such as empty boxes and plastic bottles.B, dress up clothes and costumes C, flannel board characters. D, many representational toys and

121. ## Physics

A hill that has a 31.4 % grade is one that rises 31.4 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal?

122. ## Algebra

the phone company has two plans for cell phones. the first plan calls for a monthly fee of 35.00 with unlimited calling. The other plan is a monthly fee of 15.00, with a 0.50 fee for every minute over 100 used in a month. What is the greatest number of

123. ## math

A ball bounces back .06 of its height on every bounce. If a ballistic dropped from 200feet, how high does it bounce on the fifth bounce? Round to nearest tenth.

124. ## Algebra 2

Find the slope of the the line passing through the given points. Then tell weather the line rises,falls,is horizontal,or is vertical.

125. ## english

For questions 13-15, select the answer that correctly identifies the part of speech of the all caps word. 1. Katrina wanted to vist her grandmother AND grandfather over the weekend. a. conjuntion b. noun 2. "OH" her mother said, "why don't we go Saturday.

126. ## Algebra2

Find the slope of the the line passing through the given points. Then tell weather the line rises,falls,is horizontal,or is vertical. (-7,3) (-2,3)

127. ## math

order the numbers from least to greatest 367;597;279

128. ## math

The sum of 2 angles is 90. The measure of one angle is 1 1/2 times the measure of each angle

129. ## Linear Algebra

Ok this is the last one I promise! It's from a sample exam and I'm practicing for my finals :) Verify if the following 4 points are consecutive vertices of a parallelogram: A(1,-1,1); B(3,0,2);C(2,3,4);D(0,2,3) (b) Find an orthogonal vector to the plane

130. ## math

i need help figuring out tis prealgebra problem?? In 4 7 8 13 15 27 Out 16 28 32 52 60 108 107 2/3

131. ## math

if the measure of an angle exceeds four times the measure of its complement by 25, what is the measure of the angle?

132. ## math

in roman numerals, letters represent numbers. for example, I=1,V=5,X=10,L=50,C=100. letters in roman numerals are written next to each other; this is how the value of the number is shown. to read the numbers below, add the values of all of the letters.

133. ## Observing development of the young child

The three types of pretending in children's dramatic play:pretending with a regard to a role, pretending with regard to an object, and pretending with to regard an action. The three types of pretending were described by researcher A, Jean Piaget B, Rhonda

134. ## math

order the numbers form greatest to least 291;911;439;747

135. ## college algebra

form a polynomial f(x) with real coefficients having the given degree and zeros degree 4 zeros 5+3i;3 multiplicity 2 enter the polynomial f(x)=a?()

136. ## Physics

A hill that has a 31.4 % grade is one that rises 31.4 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal?

tan^x-secx=1

138. ## algebra expressions

i need to write an algebraic expression for each word phrase. Can you check if I am correct: 2) 13 less than a number q i got : 13 - q 4) the quotient of a number n and 4 i got: n/4 6) the number of days in w weeks n * w 8) the cost of p photocopies if

139. ## building mechanism

Explain the working principle of a sliding door on a horizontal surface on the floor.

A child of height 1.2 metres stands 3 metres from the foot of a lamp post of height 2.8 metres, at the top of which there is a small source which can be considered as a point. What is the length of the shadow cast by the child upon the ground?

141. ## math

Kevin has a rabbit, a ferret, a gerbil, and a turtle. He feeds them in a different order each day. In how many different orders can kevin feed his pets?

142. ## math

140=1/2[(360-x)-x]

143. ## English

Look at the things in the picture. What can you see there? Answer the questions looking at the picture. What are you going to do? I'm going to go for a hike. I am going to write three postcards and send them to my friends. I am going to listen to music

144. ## algebra

identify whether the number is rational or irrational. then explain why it is rational or irrational. 8/17 and 21.192

145. ## arithmetic

a student says that 30 more seventh graders bought canned drinks than eighth graders.Describe and correct the error made in drawing this conclusion from the graph?

146. ## English

1. Tadpole noodles are made from corn. 2. Tadpole noodles are made of corn. (Which one is right?) 3. She is going to go for a hike. 4. She is going to go hiking. 5. She is going to go on a hike. 6. She is going to go out for a hike. (Are the four sentences

147. ## math

make a tally and a frequency table for the number of books read by students during the summer: 4, 5, 7, 2, 4, 5, 6, 7, 8, 4, 5, 3. how many students took part in this survey?

148. ## chemistry

a copper sample has a mass of 44.65 g and a volume of 5.0cm^3. what is the density of copper, expressed as gram per cubic centimeter? can you please write the formula then show the working? thank you really appreciate it

149. ## Observing development of the young child

Which one of the following is not one of the three main functions of language in dramatic play described by smilanksy? A, creating dialogue for teachers B, directing the action C, imagining a make believe situation D, imitating adult speech

150. ## chemistry

molecules of two different compounds contain the same number of atoms of each element but have different arrangement of atoms. which term correctly describes these two substances? a) isomers b) isotopes c) polymers d) none of the above

151. ## MATH

Suppose you wanted to place 1,000,000 pennies in large coin banks. If you put 50,000 pennies in each bank, in which bank would you find the 678,230th penny?

152. ## chemistry

molecules of two different compounds contain the same number of atoms of each element but have different arrangement of atoms. which term correctly describes these two substances? a) isomers b) isotopes c) polymers d) none of the above

153. ## General Chemistry

How do you recognize and identify the compounds and elements? How do you determine the uncertainty in measurements? What is differentiating between measured numbers and exact numbers?

154. ## trigonometry

Verify that following are identities: 1. cos 3t = 4 cos³ t-3 cos t 2. sin 4x = 8 sin x cos³ x-4 x cos x (use a double-angle identity)

155. ## Observing development of the young child

The type of pretend play in which Preschool children role play with others is called? Dramatic play B, onlooker play C, solitary play D, access ritual play

156. ## English

What is the difference between 'be made of' and 'be made from'?

157. ## maths/physics

PLEASE HELP! A POINT SOURCE OF LIGHT IS PLACED 50 CM ABOVE A CIRCULAR CARD OF DIAMETER 5CM, THE SOURCE BEING DIRECTLY ABOVE THE CENTRE OF THE CARD. WHAT IS THE AREA OF THE SHADOW ON THE FLOOR 70 CM BELOW THE CARD?

158. ## OPTICS

PLEASE HELP! A POINT SOURCE OF LIGHT IS PLACED 50 CM ABOVE A CIRCULAR CARD OF DIAMETER 5CM, THE SOURCE BEING DIRECTLY ABOVE THE CENTRE OF THE CARD. WHAT IS THE AREA OF THE SHADOW ON THE FLOOR 70 CM BELOW THE CARD?

159. ## univen

why teachers should study sociology of education

160. ## Physics

A 15 kg box sits on a horizontal force. the coefficient of static fricition between the box and the surface is 0.70. if a force P is exerted on the box at an angle directed 37 degrees below the horizontal, what must be the magnitude of P to get the box

161. ## science

I need a sentence using the word cytoplasm and I'm in 5th grade.

162. ## physics

A helicopter is ascending vertically with a speed of 4.50 m/s. At a height of 195 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: The package's initial speed equals the

163. ## Science

How is water related to how a cell functions?

164. ## humanities s.s

What are two pitfalls when examining opposing viewpoints