1. PHYSICS HELP ASAP

a 3 kg block slides down a frictionless plane inclined 20 degrees to the horizontal. If the length of the plane's surface is 1.50m, how much work is done, and by what force? suppose the coefficient of kinetic friction between the block and the plane. What

2. PHYSICS

A person whose weight is W=584 N doing push-ups. Find the normal force exerted by the floor on each hand each foot, assuming that the persons holds this person |=central gravity foot arm -------|-------- .840m .410m

3. chemistry

When a volume of H2 reacts with an equal volume of Cl2 (assume you have 1 L of each) at the same temperature and pressure, what volume of product having the formula HCl is formed? Question 4 answers

4. science

What are examples of inclined planes in the kitchen?

5. english grammar

Change these active voice sentences into the passive voice? a) Farmers grow rice in India. b) I will finish the report later. c) Scotland has never won the World Cup. d) The American people elected George W. Bush. e) Agatha Christie wrote ‘Murder on the

6. Physics

A man using a 70 kg garden roller on a level surface exerts a force 20 kgf at 45 degrees to the ground . Find the vertical force of the roller on the ground if he ; a) pulls the roller. b) pushes the roller.

You have 15 yards of ribbon for your gift boxes. Each box gets the same amount of ribbon. How much ribbon will each of your 20 gift boxes get?

8. math

Find all the ordered pairs of integers such that x^2 - y^2 = 140 Any help or explanations would be wonderful!

9. Integrated Physics and Science

A crowbar is used as a lever. The effort force of 40 newtons moves 3 meters. The resistance force of 54 newtons moves 2 meters. What is the efficiency of the lever? A) 100% because energy must be conserved B) 90% C) 25% D) 18% i need help. i don't know how

10. Math

a bag contains green, yellow and orange marbles. the ratio of green marbles to yellow marbles is 2:5, the ratio of the yellow marbles to orange is 3:4. what is the ratio of the green marbles to the orange marbles?

11. Physics

a system of 1525 particles, each of which is either an electron or proton, has a net charge of -5.456*10^-17 C. A) How many electrons are in this system? B) What is the mass of this system?

12. PHYSICS

A man holds a 178N ball in his hand, with the forearm horizontal. He can support the ball in this position because of the flexor muscle force M, which is applied perpendicular to the forearm. The forearm weighs 22 N and has a center of gravity as

13. Finance

Hooks Athletics, Inc., has outstanding a preferred stock with a par value of \$30 that pays a dividend of \$2.50. The preferred stock is redeemable at the option of the stockholder in 10 years at a price equal to \$30. The stock may be called for redemption

14. Physics

The velocity of a diver just before hitting the water is -8.7 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 0.98 s of the dive?

15. physics

A construction worker attempts to lift a uniform beam off the floor and raise it to a vertical position. The beam is 2.50m long and weighs 500N. At a certain instant the worker holds the beam momentarily at rest with one end at distance d=1.50m above the

16. algebra 2

Factor x3 4x2 3x + 18 = 0, given that 3 is a zero.

17. Physics

An object is dropped from rest. What is its instantaneous speed when it has been in motion for 5 s? The acceleration of gravity is 9.8 m/s2 . Answer in units of m/s

18. PHYSICS

A person whose weight is W=584 N doing push-ups. Find the normal force exerted by the floor on each hand each foot, assuming that the persons holds this person |=central gravity foot arm -------|-------- .840m .410m

19. Math

Assume the probability is 1/2 that a child born is a girl. If a family has three children, what is the probability that they have a) exactly one girl b) at most two boys?

20. physics

What is the net force on a Mercedes convertible traveling along a straight road at a steady speed of 100km/h?

21. physical

Two vehicles are approaching an intersection. One is a 2500- kg pickup traveling at 14.0 m/s from east to west (the negative x-direction), and the other is a 1500-kg Mercedes going from south to north (the positive y-direction at 23.0 m/s). (a) Find the x

22. Math

In a 3 x 4 dot rectangle there are 10 dots on the outside and 2 dots on the inside.In a 4 x 5 dot rectangle there are 14 dots on the outside and 6 dots on the inside.How may dots are outside in a 1989 x 1990 dot rectangle?

23. physics

a metal wire 1.0 mm in diameter and 2.0 m long hangs vertically with a 5.0 kg mass suspended from it. if the wire stretches 1.2 mm under the tension, what is the value of the young's modulus for metal?

24. math

Sam invested \$5000 in a GIC earning 8% compound interest per year. The interest gets added to the amount invested, so the next year Sam gets interest on the interest already earned as well as on the original amount. How much will Sam's investment be worth

25. trigonometry.

In a right triangle sinA= 3/5 and C=17. Find a and b. Be sure to draw a right triangle and letter it properly. how can i solve the math in this problem. i know i would have to use the Pythagoream Theorem but i don't know how to set the problem up first.

26. Trig

4. Write the equation of the cosine function with an amplitude of 1/3, a period of 2pi, and a phase shift of 3pi/2. 5. Write the equation of the sine function with an amplitude of 4, a period of pi/2, and a phase shift of -pi/4.

27. Physics

A construction worker attempts to lift a uniform beam off the floor and raise it to a vertical position. The beam is 2.50m long and weighs 500N. At a certain instant the worker holds the beam momentarily at rest with one end at distance d=1.50m above the

28. Math

Paul's car is 14 feet long. Paul is making a model of his car that is the actual size. Which proportion should be used to find the length, L, of Paul's model?

29. Physics Help!

A 1 kg object is located at a distance of 1.7 x 10^6 m fom center of a larger object whose mass is 7.4 x 10^22 kg. a. What is the size of the force acting on the smalle object? b. What is the size of the force acting on the larger object? c. What is the

30. algebra

According to the rational root theorem, which is not a possible rational root of x3 + 8x2 x 6 = 0?

31. Calculus

The rate of change R, in kilometers per hour, of the altitude of a hot air balloon is given by R(t)=t^3-4t^2+6 for time on the interval [0,4], where t is measured in hours. Assume the balloon is on ground level. What is the maximum altitude of the balloon

32. physics

a 10.0-g object moving to the right at 20.0 cm/s makes a elastic head-on collision with a 15-g object moving in the opposite direction at 30.0 cm/s find the velocity of each object after the collision.

33. Economics

Who gets scarce resources in a market economy? A) the government B)whoever is willing and able to pay the price C)whoever wants them D)Whoever the government decides gets them

34. chemistry

Consider the 2-step reaction mechanism fast 2NO + H2 \$ N2O+H2O slow N2O+H2 ! N2+H2O net 2NO + 2H2 ! N2 + 2H2O Which of the following rate laws is cor- rect for the given mechanism? Note that the constant k may represent a combination of elementary reaction

35. physics

You pick up a charge of one micro-Coulomb while walking over carpet, how many electrons were transferred? (Order of magnitude only) TRUE OR FALSE: If a third charge is released in the middle between the two positive charges, independent of the magnitude of

36. Physics

A 53 kg student eats a 200 Calorie doughnut. To “burn it off”, he decides to climb the steps of a tall building. (1 food Calorie = 103 Calories.) How high would he have to climb to expend an equivalent amount of work? The accelera- tion of gravity is

37. math

Laura is driving to Seattle. Suppose that the remaining distance to drive (in miles) is a linear function of her driving time (in minutes). When graphed, the function gives a line with a slope of -0.75. Laura has 51 miles remaining after 33 minutes of

38. chemistry

Consider the 2-step reaction mechanism fast 2NO + H2 \$ N2O+H2O slow N2O+H2 ! N2+H2O net 2NO + 2H2 ! N2 + 2H2O Which of the following rate laws is cor- rect for the given mechanism? Note that the constant k may represent a combination of elementary reaction

39. Physics

An alpha particle (mass=6.68x10^-27kg)is emitted from a radioactive nucleus with an energy of 5.00MeV. How fast is the alpha particle moving in m/s? (1 MeV= 1.6x10^-13J). I don't know how to start to solve this problem A.2.40x10^7 m/s B.1.55x10^7 m/s

40. Algebra

Out of jar with 100 marbles, 49 are blue marbles, 7 are green marbles, 27 are red marbles and 17 are yellow marbles. What is the probability of drawing a red marble?

41. Physics

A cat chases a mouse across a 1.5 m high table. The mouse steps out of the way, and the cat slides off the table and strikes the floor 1.4 m from the edge of the table. 2 The acceleration of gravity is 9.81 m/s . What was the cat’s speed when it slid off

42. Math

A pear contains 30 calories more than an apple. Ten apples have as many calories as seven pears. Find the number of calories in an apple and in a pear.

43. math

HELP ME!!! One of your friends missed the class on scientific notation. Describe how you would explain to your friend what it means for a number to be in scientific notation and how to convert a number from standard form to scientific notation.

In a discount interest loan, you pay the interest payment up front. For example, if a 1-year loan is stated as \$10,000 and the interest rate is 10 percent, the borrower “pays” 0.10 x \$10,000 = \$1,000 immediately, thereby receiving net funds of \$9,000

45. Geometry

Find the perimeter and area of each figure. give your answers in the simplest radical form.a 30-60-90- degree triangle with hypotenuse length 28 centimeters.

46. Physics

A baby sitter pushing a stroller starts from rest and accelerates uniformly at a rate of 0.682 m/s2. What is the velocity of the stroller after it has traveled 7.74 m? Answer in units of m/s.

47. science

table is lifted to backpack starts to slide off. If table makes a 21 degree angle with floor, what is coefficient of static friction between backpack and the table?

48. physics

A bird is flying with a speed of 12.0 m/s over water when it accidentally drops a 2.30 kg fish. The acceleration of gravity is 9.81 m/s2 . If the altitude of the bird is 8.20 m and air resistance is disregarded, what is the speed of the fish when it hits

49. math

a dog is tied to a leash that is hooked to the outside corner of a barn that measures 12 x 20 feet. the length of the leash is 16 feet. what is the maximum are in which the dog can wander?

50. Physics

A motor vessel tows a small dinghy by a rope which makes an angle of 20 degrees with the horizontal. If the tension in the rope is 15 kgf ;find a) the force which effectively pulls the dinghy forward. b)the force which lift its bows out of the water.

51. math

write 3 different ones numbers you could add to 15 without needing to regroup

52. Physics

An autographed baseball rolls off of a 0.55 m high desk and strikes the floor 0.82 m away from the desk. The acceleration of gravity is 9.81 m/s2 . How fast was it rolling on the desk before it fell off? Answer in units of m/s.

53. Arithmetic/Math

Sarah uses balsa wood to build airplane models. After completing a model, she had a strip of balsa wood measuring 7/8 of a yard left over. Shawn the Weirdo wants to buy half of the strip from Sarah. If Sarah paid \$2.00 for each yard, how much should she

54. Trig/Math

Write the equation of the cosine function with an amplitude of 1, a period of 3pi/7, a phase shift of -pi/5, and a vertical shift of 2 units down.

55. Math

The height of the tide in a given location on a given day is modelled using the sinusoidal function h(t)=5 sin (30(t-5))+7. a) What time is high tide? What time is low tide?

56. Math

can someone explain this please? Identify whether each graph represents a function. Explain. If the graph dose represent a function is the function linear? the coordinates are (0,5) (1,0) (2,-3) (3.-4)(5,0) (6,5)

57. Chemistry

Analysis of a compound indicates that it is 49.02% carbon, 2.743% hydrogen, and 48.23% chlorine by mass. A solution is prepared by dissolving 3.150 grams of the compound in 25.00 grams of benzene, C6H6. Benzene has a normal freezing point of 5.50degreeC

58. math

in the lincon school 1/6 of the students are on the track team and 1/4 of the student are on the tennis team.no students play on both team.what fraction of the students are on the two teams altogether

59. physics

A pelican flying along a horizontal path drops a fish from a height of 5.0 m. The fish travels 8.5 m horizontally before it hits the water below. The acceleration of gravity is 9.81 m/s2 . a) What was the pelican’s initial speed? Answer in units of m/s

60. geometry

Two spherical canaloupes of the same kind are sold at a fruit and vegetable stand. The circumference of one is 60 cm and that of the other is 50 cm. The larger melon is 1 1/2 times as expensive as the smaller. Which melon is the better buy and why?

61. Physics

The net external force on the propeller of a 3.3 kg model airplane is 6.5 N forward. What is the acceleration of the airplane? Answer in units of m/s2.

62. Geometry

A theater decides to change the shape of its popcorn container from a rectangular boc to a right regular pyramid, as shown in the following figure, and charge only half as much. If the containers are the same height and the tops are are the same size, is

63. Physics

You place a box weighing 251.6 N on an in- clined plane that makes a 38.4◦ angle with the horizontal. Compute the component of the gravita- tional force acting down the inclined plane. Answer in units of N.

64. Physics

A jet plane lands with a speed of 120 m/s and can decelerate uniformly at a maximum rate of 5.8 m/s2 as it comes to rest. Can this plane land at an airport where the runway is 0.89 km long? Answer this by calculating. Answer in units of km.

65. Math

What number has 6 in tenths place,4 in the ones place,5 in the hundredths place,and 9 in the tens place?help me!

66. Finance

Blue Moon Corporation has one million shares of common stock outstanding. In a typical annual election for the board of directors, shareholders representing 70 percent of the shares outstanding exercise their right to vote. The company has nine members on

67. History

what was the Freedonian Rebellion?

68. Chemistry

Analysis of a compound indicates that it is 49.02% carbon, 2.743% hydrogen, and 48.23% chlorine by mass. A solution is prepared by dissolving 3.150 grams of the compound in 25.00 grams of benzene, C6H6. Benzene has a normal freezing point of 5.50degreeC

69. algebra 2

Which binomial is a factor of f(x) = x4 - 27x2 -14x + 120? (x-4) (x-2) (x + 5) (x + 6)

70. algebra 2

Which binomial is a factor of f(x) = x4-27x2-14x + 120?

71. Biology

I have a biology worksheet that talks about secondary and primary succesion. I looked it up, and I found that Presque Isle is an example of primary succession. But, what happened there?

72. Physics

Beth, a construction worker, attempts to pull a stake out of the ground by pulling on a rope that is attached to the stake. The rope makes an angle of 49 with the horizontal. If Beth exerts a force of 148 N on the rope, what is the magnitude of the upward

73. math

josie found a oapir of shoes she wanted prices at \$55,but she did not want to pay that much.a few weeks later , the same shoes were marked down to 20% .including the 6% sales tax,how much will she pay if she buys the shoes on sale?

74. american goverment

among the broad purposes of the united states government spelled out in the preamble to the constitution os the obligation to

75. physics

A ball initially at rest rolls down a hill with an acceleration of 2.7 m/s2. If it accelerates for 8.1 s, how far will it move? Answer in units of m.

76. math

suny ridge elemantrayschool was collecting ans for a food drive . the first few days of the drive , they collected 103 cans. they collected 5 more cans on the first day than the second day . how many cans did they collected each day? ___first day ___

77. history

For whom and to what extent was the American West a land of opportunity from 1865 to 1890?

78. geometry

John claimed he had a garden twice as large as Al's retangular-shaped garden that measured 15 ft by 30 ft. When they visited John's rectangular-shaped garden, they found it measured 18 ft. by 50 ft. Al claimed that it could not be twice as large since

80. Math

Using the binomial theorem, Find the first three terms in the expansion of (x-(1/x))^5. My solution: C(5,0)x5 + C(5,1)(x4)(-1/x) + C(5,2)(x3)(-1/x)2 x5 + (5)(x4)(-1/x) + 10(x3)(-1/x)2 x5 + (-5x4/x) + 10(x3)(1/x2) x5 + (-5x3) + 10(x) x5 -5x3 + 10x The first

81. physics

a 35.5kg box slides down an incline plane with a 25 degree angle at a constant rate. how do i calculate the coefficient of friction

82. Physics

You place a box weighing 251.6 N on an in- clined plane that makes a 38.4◦ angle with the horizontal. Compute the component of the gravita- tional force acting down the inclined plane. Answer in units of N.

83. math

The total amount of interest on a loan of \$6,000 for 150 days is 210.50.Using the ordinary interest method,what is the rate of interest on this loan?Round answer to the nearest hundredth. I know the ordinary interest method is 360 days. My anwser is 8.42%

84. spanish

how do you unscramble these spanish sentences! please help! -tu no hsa tisvo dana -xale se le eyr de al ciadud deny -tamry edase ri a al njgaul -laxe se puhca le doed -sol fosass namsel to a sol leresmu

85. Epidemiology

Indicate how the bias would affect the measure of association. Would it be under estimated, or over estimated or unchanged. Persons diagnosed as HIV positive or negative were interviewed about their number of lifetime sexual partners. The interview

86. Physics-Help, confused!

A .20 kg ball is attached to a vertical spring. The spring constant is 28 N/m. The ball is supported initially so that the spring is neither stretched or compressed, is released from rest. How far does the ball fall before brought to a momentary stop by

87. Math

Gerald and Michelle went on a 24 mile bike ride. By lunchtime they had ridden 5/8ths of the total distance. how many miles did they have left to ride after lunch ?

88. Algebra

Two cities are 5 1/2 inches apart on a map. The actual distance between the cities is 66 miles. What scale was used to draw the map?

89. math

write 3 different ones numbers you could add to 15 where you need to regroup to find the sum

90. Physics

A crate is pulled to the right with a force of 85.5 N, to the left with a force of 120.8 N, upward with a force of 652.1 N, and downward with a force of 249.5 N. What is the net external force in the x direction? Answer in units of N. What is the net

91. Physics

One of the most efficient engines ever built is a coal-fired steam turbine in the Ohio valley, driving an electric generator as it operates between 1870C and 430C. What is itsmaximumtheoretical efficiency?

92. Math

What are the two conditional statements make up the biconditional statement shown below? Two lines are skew if and only if they are not coplanar.

94. Math

This question HATES ME! Which value would best describes the data? 8, 9, 10, 12, 14, 15, 18, 18, 63. A-mean B-mode C-median D-

95. chemistry

For neutralization of 10ml 10% sodium carbonate how many 1N H2SO4 is required?

96. Physics

You place a box weighing 251.6 N on an in- clined plane that makes a 38.4◦ angle with the horizontal. Compute the component of the gravita- tional force acting down the inclined plane. Answer in units of N.

97. physics

A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

The fans were depressed, for their team had won only 15 of the first 60 games. What was the team's win loss ratio after 60 games? Is it 15:45. I am not sure if the words first and after change the calculation

99. Math

How do I work this math prob. I always have a B and would like to bring it up. Caan you PLEASE help me with this prob. on unit rates "\$2 for 5 cans of tomato soup"

100. Geometry

The Great Pyramid of Cheops has a square base of 771 ft. on a side and a height of 486 Ft. how many rooms on a side and a height of 486 ft. How many rooms 35 ftx 20ftx8ft would be needed to have a volume equivalent to that of the Great Pyramid?

101. Physics

A 1.9 kg otter starts from rest at the top of a muddy incline 84.1 cm long and slides down to the bottom in 0.60 s. What net external force acts on the otter along the incline? Answer in units of N.

Analogies: court : docket :: trip : ? I'm working on a crossword puzzle and it has 9 letters, possibly starting with the letter I

103. Physics

A 1.9 kg otter starts from rest at the top of a muddy incline 90 cm long and slides down to the bottom in 0.50 s. What net external force acts on the otter along the incline? How do I do this?

104. accounting

Select a company that you are familiar with from the transportation industry. •Collect the 4 main financial statements from credible sources (e.g., nationally syndicated newspapers, peer-reviewed journals, investor relations, Web sites or annual reports.

105. Iron and Sulphur reaction

Please give a particle diagram of the iron sulphur reaction

106. Chemistry

Analysis of a compound indicates that it is 49.02% carbon, 2.743% hydrogen, and 48.23% chlorine by mass. A solution is prepared by dissolving 3.150 grams of the compound in 25.00 grams of benzene, C6H6. Benzene has a normal freezing point of 5.50degreeC

107. math

If the probability of an event happening is 1/7, what are the odds against it happening? What is the ratio of the odds against the event?

108. math -fractions

ordering fractions 1/2,7/8,9/10,1/3,3/5,1/4 write the above fractions in order.

109. physics

The following wave function represents a travelling wave: y = 3.45 / [6.35 + (6.35x−8.30 t )2] where y and x are in cm, and t is in seconds.a) What is the maximum displacement of the wave at t = 7.50 s ? b) what is the velocity.

110. physics

A constant net force of 390 N is applied upward to a stone that weighs 31 N. The upward force is applied through a distance of 2.0 m, and the stone is then released. To what height, from the point of release, will the stone rise? Assume that air resistance

111. physics

A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

112. physics

A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

113. physic

all of the following are true about water except that it

114. Arithmetic

Janine is having seven friends over for breaksfast. Of the eight people who will be eating breakfast, six like orange juice best, and two prefer grapefruit juice. Both kinds of juice cost \$2.89 for half gallon, \$2.09 for a quart(1/4 of a gallon), and \$1.29

115. chemistry

Sulfuric was titrated with NaOH solution. 208 mL of .250 M NaOH solution was needed to completely neutralize 65.0 mL of H2SO4. What is the concentration of the sulfuric acid solution?

116. Algebra

Sue's student loans totaled \$31,000. One of her loans was at 2.8% simple interest and the other at 4.5%. After one year, Sue owed \$1024.40 in interest. What was the amount of each loan?

117. physics

The magnitude of each of the charges in the figure below is 8.75 10-12 C. The lengths of the sides of the rectangles are 2.94 cm and 4.80 cm. Find the magnitude of the electric field at the center of the rectangle in the figures below. both pictures are

118. math

Make into one log function: 2logx-log4-log3+logx

119. Math7

poul has 124.8m of encing to build a rectangular pen. He wants the pen to have the largest possible area. Calculate the length and width of the pen to one decimal place. I don't get it at all

120. Geometry

The Great Pyramid of Cheops has a square base of 771 sq ft. on a side and a height of 486 ft. How many rooms 35 ft.x20ftx8ft would be needed to have a volume equivalent to that of the Great Pyramid?

121. math

wilson has made 8 out of the last 20 free throws he has attempted what is the probiblity that he will make the next free throw??

122. Physics

A projectile is fired straight up at a speed of 16 m/s. How long does it take to reach the top of its motion? The acceleration of gravity is 9.8 m/s2 . Answer in units of s.

123. math help!!!!

what is the mean and the standard deviation of the data in the table given? round your answer to 2 decimal places value: 4.8, 5.2, 5.4, 5.9, 6.5, 6.6 frequency: 25, 21, 23, 17, 24, 25

124. Grammar

Write each pronoun, and write whether it is a subject pronoun or and object pronoun. 1. Gwendolyn Brooks write poems; they are about everyday life. They, Subject 2. Slang and the rhythms of jazz and the blues are important to her. Her, Object 3. She was

125. Science

Newton's _____ law explains why my hands hurt when I clap loudly

126. science

3 forces act concurrently on an object. First force acts 75 N north. 2nd acts 100 N east. 3rd acts 89 N at 15 degrees south of west. What is resultant force? b) what is equilibrant?

127. math

Give 5 possible dimensions for the following rectangle with the perimeter given. Perimeter= 12x+20

128. writing

i need help on writng a thesis statement about women suffrage.

Janine is having seven friends over for breakfast. Of the eight people who will eating breakfast, six like orange juice bestm and two prefer grapefruit juice. Both kinds of juice cost \$2.89 for a gallon, \$2.09 for a quart, and \$1.29 for a pint. How many of

130. geometry

A theatre +-decides to change the shape of its popcorn container from a regular box to a right regular pyramid, as shown in the following figure, and charge only half as much. If the containers are the same height and the tops are the same size, is this a

131. Physics

A freight train has a mass of 1.2 × 107 kg. If the locomotive can exert a constant pull of 5.0 × 105 N, how long would it take to increase the speed of the train from rest to 89.2 km/h? (Disregard friction.) Answer in units of s.

132. physics

A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

133. physics

A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

134. Math

How many different paths will spell the word BINOMIAL in the following arrangement(moving diagonally downwards to the left or right)? ...B ..I I .N N N O O O O .M M M ..I I ...A L L My Answer: Starting from B using Pascal's Triangle ...B ..1 1 .1 2 1 1 3 3

135. physics

a man is pulling a 100kg crate with a force of 250 newtons. the rope makes a downward angle of 30.0 degrees with the horizontal. if the crate is sliding at a constant rate, calulate the coefficient. ?? how do i do this??

136. Finance

The following stock quotation were recently reported in The Wall Street Journal: 10.3 AT&T T 3.6 21 39.43 0.26 0.1 Boeing BA 1.6 31 88.91 -0.85 -8.7 JohnsJohns JNJ 2.5 16 60.26 -0.08 a. What are the dividend yields on the common stock of AT&T Boeing, and

137. English

I did three more corrections myself. Can you see if they are OK? 1)Also the doctor lives and works in a small laboratory and the monster learns the human civilization closed in a small cottage. Correction: The doctor lives and works in a desolate

138. Math percentages

I have to compare two amounts given in percent. Last year, 80% of a cafe's sales were coffee; this year only 20% of the cafe's sales are coffee. How much has the percent of coffee sales changed over the past year. Is the answer simply down by 60% or is it

139. Trig/Math

2. f(x) = 1/4 cos(1/2 x + pi/2). Find the amplitude, period, and phase shift of the function. 3. f(x) = -cos(3x + pi). Find the amplitude, period, and phase shift of the function.

140. chemistry

the stoichiometric amount between potassium cromate and lead acetate.

141. Chemistry

which method increase the surface of a solid, allowing it to dissolve faster? A)changing the state of the solid B)adding has to the solid C)heading the solid D)reducing the size of the solid

142. Algebra

What is the slope of the line given by 4x = 0 by 5y = 0? How do I solve this?

143. Finance

Determine the value of a share of DuPont Series A \$4.50 cumulative preferred stock, no par, to an investor !@#\$%^&quies a 9 percent rate of return on this security. The issue is callable at \$120 per share plus accrued dividens. However, the issue is not

144. Thermodynamic

One Kg steam with a quality of 0.2 is heated in a piston / cylinder vessel at a constant pressure of 200 KPa unit the temperature reaches 400 degree C. calculate the work done by the steam.

145. Math

Make into one log function: 2logx-log4-log3+logx

146. com 155

Describe your experience with credit and credit cards in a brief paragraph using at least five adverbs and five adjectives in your description. Bold the adverbs and underline the adjectives. What is the most effective way to determine whether a word is an

147. physics

what is tangential velocity of the earth as it travels in its orbit around the sun?

148. Calculus

Find the intercept, relative extrema, point of inflection, and asymptotes of the function(if they exist)of: y = (x^2 + 1)/(x^2 - 9)

149. Calculus

Find the intercept, relative extrema, point of inflection, and asymptotes of the function(if they exist)of: y= 3[(x-1)^(2/3)] - [(x-1)^2]

150. physics

Physics students ride the Power Tower at Cedar Point. The drop only takes 5.53 seconds until the car brakes. What was the height in meters that these brave students dropped? -Thanks

151. Finance

When Samuel Pepys, the British diarist, lent his friend Lady Sandwich £100 in 1668, he charged her 6 percent interest. If the loan was due at the end of 1 year, how much would Lady Sandwich have had to pay if interest was (a) compounded annually, (b)

152. math

a man hods a rifle in a horizontal postion 4 feet above the ground and shoots the bullet with an initial velocity of 2000 fps horizontally. it may be assumed that the ground is level, what will be the horizontal distance from the man to the point at which

153. Physics

How do you determine the force constant of a spring when given the mass of an object being hung vertically, and the distance the spring stretches? What formula and logic do I need?

154. chemistry

Lewis diagram for NO3- and NH4+

155. Algebra

(2-3i)(1-i)-(3-i)(3+i)

156. Maths

A Swiss Roll cake is 21cm long. When I cut it onto slices if I reduce the thickness of each slice by 1/4cm. Taking x as the number of thicker slices, write down an equation in x and solve. I just don't undertsand how to form the question.

157. History

Define physical region and give 3 examples

158. science

How does a tennis ball change shape when you hit it?

159. Math

What multiplication fact can be found by using the arrays for 2 x 9 and 5 x 9?

160. psy 210

examples of statistical graphs from any Internet source. Copy and paste these into your discussion response, and then explain how it is set up to give an impression that leads the reader to agree with the subject’s conclusion. Then, suggest an alternate

161. Statistics

Quality Progress, February 2005, reports on the results achieved by Bank of American in improving customer satisfaction and customer loyalty by listening to the "voice of the customer". A key measure of customer satisfaction is the response on a scale from

162. Chemistry

Mass of flask = 81.39g Mass of flask and water = 104.26g Mass of flask ,water,and solute =129.53 Mass of solute= 25.27g Boiling point of water =98.7C Boiling point of solution =109.5C Calculate the molecular weight of the solute using the data. M=Kb*r

163. Math7

A small tectangular box has a width of 18cm and a volume of 720cm. a.)determine the height and the length of the box. b.) is there more than 1 answer? Explain.

164. Geometry

Find the surface area for each of the following Rt. Square Pyramid 6.5cm 2.5cm,2.5cm

165. english

Hello! My name's Marie,I'm 16 I live in Paris and I'm bad in english,(so sorry for my neglish)I must do a homework and I would like that you correct my mistakes, please... It's your language (mercy) :) I used pictures to tell the story of a slave One June

166. physics

A tennis ball is thrown directly upward with an initial speed of 25 m/s. What is its velocity in m/s when it hits the ground?

167. math help!!!!

a teacher marking an extra credit assignment gave the following marks: 49, 53, 61, 65, 68, 71, 79, 87, 88, 90 what is the z-score corresponding to the lowest mark?

168. Trig

f(x) = -cos(3x + pi). Find the amplitude, period, and phase shift of the function.

169. Epidemiology

How the bias would affect the measure of association. Would it be under or over estimated? A cohort study was designed to look at the association of pesticides and the occurrence of childhood leukumia. Children living in rural areas were followed and

170. trigonometry

Using exact values,find the value of: (A=30degrees) sin 2A + tan 3A/2 - cos A + sec(A+15), when A= 30degrees There were no parentheses and no exponents. please help by showing the work in details. Thank you! I pluged in the numbers and got this I don't

171. Trig

2.Graph f(x) = 1/4 cos(1/2 x + pi/2). Find the amplitude, period, and phase shift of the function. 3. Graph f(x) = -cos(3x + pi). Find the amplitude, period, and phase shift of the function.

172. algebra

The average gas consuption of Angels SUV is 21 miles per gallon. Jeffs car takes 20% less gas to drive the same distance. If Angel and Jeff drove from Sacramento to Phoenix a distance of 570 miles, how many gallons of gas would each need?

173. chem. molarity

find the molarity of bezene given the denisty of .8989 g/l and the boiling temp is 80.2 C and Kb= 2.53C kg/mol

174. physics

A body of mass 6kg, initially moving with speed 12m/s, experiences a constant retarding force of 10 newtons for 3 seconds. Find the kinetic energy of the body at the end of this time.

175. Medical terminology

I need know....How can eliminating abbreviation reduce errors?...Should written policies be developed for abbreviation usages? if yes,what should the policies contain? if no,explain......When are abbreviation acceptable? Who should use them and

176. Arithmetic/Math

While traveling in Mexico, Samantha found some beautiful ceramic tiles. The tiles are squares,6.5 inches on each side. Samantha wants to buy enough tiles to cover the floor of her sun room. The sun room is also a square, 108 inches on each side.How many

177. math

a sheet wood measures 4 feet by 8 feet. armand wants to build a dog house usingone whole sheet of playwood for the floor. a.armand needs to put a "2 by 4" under the outer edge all the way around the floor, and another "2 by 4" that runs down the middle,

178. us history

a map for the thirteenn original colonies

Can a graph that is in a complete circle possibly have a function

180. accounting

A bond price of \$987.50 has a face value of \$1000, pays 5% semiannually, and will repay the face value in 15 years. 5% tables Present Values Pv Annuity year 13 .53032 9.39357 year 14 .50507 9.89864 year 15 .48102 10.37966 What is the yeild to maturity of

181. Geometry

how could you define the perimter of a nonsimple closed curve? Give an example of your explaination

182. MATH HELP

The south edmonton pet shop has several parrots and dogs for sale. There are a total of 24 heads and 82 legs in the display cages. A) Write a system of linear equations to represent the number of parrots, p, and the number of dogs, d, for sale. p+d = 24

183. math

3 geometric means between 32 and 1/8

184. Algebra

Steve is a member of the basketball team. He averages 2 hit for every 5 times at bat. Steve might get a hit his next time at bat. Which of these methods could not best used to stimulate this situation?

185. space

the pull of gravity between earth and the sun acts across how many kilometers of space.

186. calculus

F''(x)=x^-3/2 f'(4)=1 f(0)=0 how do I solve this differential equation?

187. Geometry

Andrea claims that if she doubles the length and width of the base of a rectangular prism and triples the height, she has increased the volume by a factor 2*2*3=12. Whar would you tell her?

188. Physics

A frictionless roller coaster is given an ini- andros (saa2652) – Energy II – dewey – (339113) 2 tial velocity of v0 at height h = 13 m . The radius of curvature of the track at point A is R = 39 m.

189. Thermodynamic

N2 is described by its state properties of temperature @ - 100 Degree C, and pressure @10.0 MPa. Determine if it is reasonable to assume that the given substance behaves as an ideal gas at the specified state. If the substance is determined as a real gas

190. arithmetic

The magazine wants to make \$160 each page of advertising sold. What might the magazine charge for each size ad if ads can be any of the following sizes: 1/32, 1/16,1/8, 1/4, 1/2, or a whole page? Explain your reasoning.

191. Physics

How many significant digits in the number 500.

192. physics

a woman is mowing her lawn. she is pushing on the handle with a force of 250 newtons. if the handle is at a 40 degree angle with the horizontal, resolve the vector. ??

193. math

what fraction of a dollar is a nickel in simplest form?

194. math

What number is 30 more than 432

195. physical sciene

1) A boy weighs 392 Newtons.What is his mass? 2) A baby weighs 8.0 pounds. What is his mass in slug? 3) An object has a mass of 50 grams. What is its weight in dynes? 4) An object has a mass of 75 grams. What is its weight in newtons?

196. Bio

How do the cellular processes and cellular products of asexual and sexual reproduction compare?

197. science

here are some science questions I've been trying to do for over an hour and i just cant figure them out! 1.how does a fan convert energy? 2.what happens to matter during both a physical and chemical change? 3.give an example of a simple closed system 4. in

198. math

give two ways to show dollar to 2.65?

199. Spanish

How would I say Physics in Spanish? Thank you

My daughter has an in put out put rule chart in put put 1out put 4,input6 output7 and so on what do they want her to do?

201. Science

Improper functioning or regulation of which of the following might lead to poor regulation of the membrane permeability? 1. albumin 2. fibrinogen 3. platelets 4. lymphocytes 5. chloride ion levels

202. Calculus

Find the intercept, relative extrema, point of inflection, and asymptotes of the function(if they exist)of: y= (x^4) - 8(x^3) + 18(x^2) - 16x + 5

203. drama

what is it about drama that is appealing to peopleÉ

204. math

Round 0.8394263 to the nearest hunderd-thousandth. Is this correct 0.83943 Round the number 43,678.426785 to the nearest ten thousand. Is this correct 43,678.4268

205. english

Hi! I'm a French-speaking student and I don't understand what is "abatement work". Can you explain that to me in English, please? Thanks.

206. math

find the measures of the angles on a nonagon???? and the formula used to find it

207. math

Combine Like Terms!!!! -6z-3z-6x^2 and how did youget the answers???

208. math math math math

a. what is the general term of the following series? 60/121-30/11+15-... +219 615/16 b. how many terms does the series have?

209. L.A.

the sandlot moive questions 1. what are one of the characters physically and psychologically 2. what dies this film say about the importance if of friendship. p.s. i got #2 questions but i just need help with more of #2 3.what does this film say about the

210. English

I tried to rephrase them myself. Can you have a look at them, please? In the last sentence I was doubtful whether to use "of" or "from". 1) Wordsworth defined poetry as .... 2)Tha subject matter of poetry should deal with everyday situations. 3)The ship is

211. math

wilson has made 8 out of the last 20 free throws he has attempted what is the probiblity that he will make the next free throw??

49

213. math

a street vendor recored the following hot dog sales for the week 100 on monday, 87 on tuesday, 95 on wednesday, 125 on thursday, 210 on friday, 250, on saturday, and 57 on sunday. what is the mena sales per day

214. Math

Make into one log function: 2logx-log4-log3+logx

215. English

Why did yun ok came to the mountain hermit?

216. Physics

Tarzan (m = 75 kg) tries to cross a river by swinging from a 15.0 m long vine. His speed at the bottom of the swing, just as he clears the water, is 9.0 m/s. What is the total force Tarzan exerts on the vine at that point?

217. Math 3

What is the rule for this function? Input 1, 6, 4, 7, 12 Output 4, 7, 9, 12, 17

218. social studies

I need a few things for World Cultures that have to do with legacy of Rome Two examples each. Alphabet, Government, and Architecture. And again that's 2 examples each

219. AP Calc AB

how do you use rules for integrals? in general, but I'm just looking for examples if possible...this is pretty new so I don't have a very good understanding yet. thanks.

220. US History

Abe lincoln was a constitutional dictator who saved the nation at the expense of the constitutional. How can you prove it?

221. Anonymous - re Physics

I've removed your post because of the unacceptable words and abbreviation in your School Subject line. If you will post with acceptable words, your question will be addressed.

222. math

if each sphere has a mass of 120 gms,what is the massof a pyramid?

223. math geometry ITT

so i know that when you have an isosceles triangle has 2 equal sides, and the 2 angles created by those sides are also equal . if a question gives me the angle at the top ( which is 40 degrees ), how do i find the 2 equal angles at the bottom ?

224. Math

Marty ate 1/4 of his pizza and Luis ate 1/3 of his pizza. Marty ate more pizza than Luis. How is that possible?

225. math geometry

how do i find the value of x in a triangle when in one angle says 2x, another angle is 3x, and another is just x.

226. Calculus

Find the intercept, relative extrema, point of inflection, and asymptotes of the function(if they exist)of: y = (x^3)/(x^2 - 4)

227. algebra

Write Home Depot’s 2002 sales and 2006 sales in scientific notation. 2002: (5.82×10^10) 2006: (9.08×10^10) This part I got. but can someone help me with the second part... 1) Find the increase in sales from 2002 to 2006. I think the answer is:

228. Geometry

In a triangle labeled ABC with the following coordinates A(-3,2) B (0,4) C (2,-1) What is the image of each vertex? Give answer as an ordered pair.

229. math

3 geometric means of 32 and 1/8

230. english

need help revising the outline to complete sentences in parallel form. improving health 1. exercise a. aerobics b. stretching and strengh training c. vary routine 2 better eating habits a. healthy food b. eat less c eat more often

231. Finding Job

gratest way to find a job is to look in newspaper i think this would be true

232. chemistry

what volume will 5.00g of dinitrogen oxide gas occupy at 50.0 degrees celcious and 12.0 atmosphere

233. algebra 2

Factor the following polynomial. 4x^3-24x

234. English

Can you check these sentences for me, please? Thank you. 1) Wordsworth defined poetry as the spontaneous overflow of powerful feelings. 2)Tha subject matter of poetry was (were?) everyday situations and the life of men living in the countryside, where man

235. algebra

How do you get : x=1/3y+2 in the y=mxtb form ?

236. statistics

For a population that has a standard deviation of 10, figure the standard deviation of the distribution of means for samples of size 3

237. Math

Perfect square 64/169x^2-225

238. Science

If someone walks at a constant speed, what does that tell us about the forces on the person?

239. alisha

a fire insurance policy has an annual premium of \$780. what is the reguar refund if the policy is canceled by the insurance company after five months

240. geometry

If BC = 2x + 1, CD = 3x - 4 and BD = 22, find the value of x.

how do you describe the use of poetic devices and identify ann example

242. English

Can you check if my rephrasing is correct? Thank you very much. 1) The monster's skin is yellow and scarcely covers the pulsing work of its muscles and arteries. 2) The ship left the harbour, but a violent storm-blast compared to an enormous bird brought

243. Math

A box contains 2 white calls and 7 pink balls. Two balls are drawn at random from the box. a) If the first ball is drawn and not replaced, what is the probability that two balls will be drawn of different colors? b) If the first ball is drawn and then put

244. physics

on a planet whose mass is twice that of earth and whose radius is same, with what acceleration will a body fall at sea level?

What are two reasons why the EU have limited exports to China and their effect on trade relationships?

246. Social Studies

What are 3 names for jewish people? I got: 1. Hebrews 2. Chosen People 3.?

247. arithmetic

what is the sum of 5/14 plus 13/14 ???????

248. math (geometry EAT thereom)

i understand that in the EAT thereom the sum of the inside angles equal to the outside angle.. in my homework i have to find the angle of a inside angle, and it gives me 2 outside angles that are 130 degrees and 120 degrees, how do i find the inside angle

249. math

is the - square rout of 30 rational, irrational, or real?

250. math

find the range of the set of numbers: 185 246 372 801 675 212 and how do you find it?????

251. integrated math

Solve 210 = 6b + y for y .

252. Math

if Jen and Heather went to lunch. Jen discovered that she had only \$8.00. Luckily Heather had enough money to pay the other part or 3/5ths of the bill. How much did Heather pay? and How much was the total bill ?

253. Finding Job

cold calling is best to do first, and if there is a possible job, then research the company true or false

254. Finding Job

Gradually retiring by working fewer hours: Phaed retirement Work Sharing leave time shift work would it be phased retirement

255. math

Combine Like Terms!!!! -6z-3z-6x^2 and how did youget the answers???

256. English

does lady macbeth knows macbeth ambition before he killed king duncan?

257. world history

The key diplomatic achievement of Bismarck's foreign policy was

258. chemistry

what is the density of methyl gas at 25 degrees celcious and 1.50 atmosphere.

259. chemistry

what is the mass of 250.0 ml gas at 25 degrees celcious at 0.359 atmosphere

260. Algebra 2

problem: 4x^3-24x would this be the answer to the problem? 4x(x^2-6)

262. math

two terms of an arithmetic sequence are 15 and 45. Create three different arithmetic sequences given these terms

263. Pre-Calc

Make into one log function: 2logx-log4-log3+logx

How does the process of needs/market assessment result in successful project planning and the development of new approaches to health care?

265. Math

How can the statement “elephants are large” be written as a conditional statement?

266. grammar

3. This author wrote (the stories) at age nineteen. (it) 10. She wrote stories about (her experiences). (it) is 3 them and 10 is it also them

267. Civics and Economics

what is the purpose of a fillibuster

268. physics

who has a greater mass to weight ration, a person weighing 100N or a person weighing 150N?

269. math

a triangle with side lengths 26, 28, and 30 is constructed so that the longest and shortest sides are tangent to a circle. the third side passes throught the center of the circle. compute the radius of the circle

270. science

what is an ecosystem? compare and give examples of open and closed ecosystems

271. Math

solve log(b4)x-log(b4)2=2 (b4)=base 4

Your manager has asked that you reach out to three senior leaders in the organization to build a better understanding of their needs so that your department can better align themselves with these executives’ and build partnerships for new work. Where

273. math help!!!!

determine the sum of the following geometric series. round your answer to 4 decimal places if necessary. a. -1/32+1/16-...+256 b. 50 over sigma n=1 8(.5)^n-2

274. math help!!!!

what is the mean and the standard deviation of the data in the table given? round your answer to 2 decimal places value: 4.8, 5.2, 5.4, 5.9, 6.5, 6.6 frequency: 25, 21, 23, 17, 24, 25

275. 3rd math

The commutative, or order, property applies to which operations? A. Add & Multiply B. Subtract & Mutiply C. Add & Subtract D. Mutiply (we chose A - is this correct?)

276. Precalculus

cos2x=cos(x+x)=

277. SOCIAL STUDIES

LLGODSTA AIGODNMN UNILSIAN AHINAINDIC

278. Math

Two round fountains are similar. One measures 7'6" across and the other measures 14'11" across. Find the scale factor from the small one to the large one.

279. Algebra 2

problem: 4x^3-24x would this be the answer to the problem? 4x(x^2-6)

280. Literature

According to the map,Tony' farm is just ahead. Is this an adverb phrase

281. Algebra 2

problem: 4x^3-24x would this be the answer to the problem? 4x(x^2-6)

282. math

4x27= partial products: product:

283. math

Muhammad Chabali earns \$13,600 per year. He is paid 12 times per year and claims 2 exemptions. His city and state combined tax him at a rate of 10%. How much tax is withheld per pay period?

284. math

write a fraction greater than 1 for 5/8

285. English

Had they not imposed their beliefs on the Ibo, Okonkwo would not have been provoked to murder.

49

287. physics

who has a greater mass to weight ration, a person weighing 100N or a person weighing 150N?

288. math

Explain how you could show five less than a number using an expression?

289. Math

A small tectangular box has a width of 18cm and a volume of 720cm. a.)determine the height and the length of the box. b.) is there more than 1 answer? Explain

290. 5th math

jim can pack a bag of groceries in 6 seconds how many can be packed in 15min solve as a fraction division problem to answer the question? Would it be 25?

291. math

Can the expression (r-3)(s+2) be simplified without knowing the values of r and s?

292. math

125n is greater than but equal to -2 SOLVE!!!!

293. math

7/12m + 2 is less but equal to 16 SOLVE!!!

294. microsoft office

what does the program winzip do for the files on your computer

295. math

wat is -1.0625 as a fraction

296. english

does anyone know any modern movies or songs about the ocean? "Follow the river and you will find the sea." French proverb

297. math

|60|___|-60| < > =

Dividing 22/7 / 5

299. math

2x is less than but equal to 3x-3 SOLVE!!!!

300. math

what is symmetry

301. division

what is 3796divided by 48

11/4 / 11/5

303. Algebra 2

10x+ (x^2) = 42

304. us history

what events led to u.s. expansion during 1895-1920?

305. books

what tense is the feminine mystique written in? first , third or omniscient?

306. science

is a dishwasher a wheel and axle