1. physics

    suppose a ball having 2 kilogram mass is closed in tube having 4 kilogram mass. what will be the velocity of 2 kilogram ball if we shake this tube side by side and this ball bounce back and rolling at the rate of .03 centimeter/second.
  2. physics

    A constant horizontal pull of 8.25 N drags a box along a horizontal floor through a distance of 19.1 m. Q How much work does the pull do on the box? Ans: i got the answer as W = 158 J But i have problem with the second question? Question: Suppose that the
  3. algebra

    During rush hour, Bill can drive 60 miles using the side roads in the same time that it takes to travel 30 miles on the freeway. If Bill's rate on the side roads is 7 mi/h faster than his rate on the freeway, find his rate on the side roads. let bill drive
  4. Pre-Calc/Math

    if (0,-7) lies on the terminal side of angle theta in standard position, find each value sec(theta) , cot(theta) and sin(theta)
  5. Math

    If the diagonal of a rectangular sundeck makes an angle of 67 degrees with one side of the deck and the length of the diagonal is 24 feet,what are the dimensions, to the nearest foot, of the sundeck?
  6. maths - shapes

    Can you name these quadrilaterals? a) All sides are the same length, opposite sides are parallel, angles are not 90 degrees. b) Two pairs of touching sides are the same length. The diagonals meet at right angles. Opposite sides are not parallel. c) The
  7. hydrodynamics

    a kite weighs 2.50 lb and has an area of 8 square-ft. The tension in the kite is 6.6 lb when the string makes an angle of 45degrees with the horizontal. For a wind of 20 mph, assume an angle of 8 degrees with the horizontal. Consider the kite essentially
  8. Physics

    Mathematically determine the resultant force if two forces A and B act on an object. Force A is 85N and is at an angle of 20• to the horizontal. Force B is 125N and is at an angle of 60• to the horizontal.
  9. engineering mathematics 1

    your father wants to fence a rectangular area in your backyard for a garden. one side of the garden is along rhe edgeof the yard is already fenced, so you only need to build a new fence along the other 3 sides of rectangle. if you have 80 meter of fencing
  10. physics

    Show your work for how the formula was used to calculate a final answer! GPE for second hill: ___ _________________++ Describe how conservation of energy applies to a roller coaster ride from start to finish. This is the last part of roller coaster I'd
  11. Math

    If two parallelograms are similar, what do you know about the ratios of the two side lengths within one parallelogram and the ratios of the corresponding side lengths in the other parallelogram?
  12. math

    The area of a square with a side length of s is s to the second power. What is the area of a square with a side length of 3 inches?
  13. Geometry

    ABCD is a square. If one side of the square measures 2x – 5 inches and the other side measures x + 8 inches, find x.
  14. geometry

    the scale factor between figure A and figure B is 0.25. If one side length of figure B is 56 yards, what is the corresponding side length of figure A?
  15. Pre-Algebra

    Please let me know if I figured these out correctly. Directions: For the line with the given equation, find the slope of a parallel line and the slope of a perpendicular line. 1)y=6/5x + 144 slope of parallel: 6/5 slope of perpendicular: -5/6 2)4y-4x=16
  16. Algebra

    One angle in a triangle has a measure that is three times as large as the smallest angle. The measure of the third angle is 10 degrees more than that of the smallest angle. Find the measure of the LARGEST angle.
  17. Algebra

    One angle in a triangle has a measure that is three times as large as the smallest angle. The measure of the third angle is 10 degrees more than that of the smallest angle. Find the measure of the LARGEST angle.
  18. trig

    If a=8, the angle C=50 degrees and the angle A=35 degrees find the other angle B and the remaining b and c sides. Give your answer to at least 3 decimal places.
  19. Geometry

    The ratio of the side lengths of a quadrilateral is 2:4:5:7 and its perimeter is 36 meters. Determine the length of each side. x =       a =       b =       c =
  20. math

    The angle of depression of two points on opposite sides of a building are on the same horizontal level with the foot of the buiding are 58 and 49 respectively from the top of the building. If the building is 38m tall, calculate the distance between the
  21. maths

    in triangle abc if ab=bc then angle a = angle c or angle a = angle b
  22. Math

    A crate with no lid is shaped like a cube with sides that are 0.8 m long. What is the surface area of the crate?
  23. trigonometry - maths

    The difference between the two acute angles of a right angled triangle is 2pie /5 radians . Express the angle of the triangle in degree and grade .
  24. pre-algebra

    how do i solve proportions??? please help!! And how do i kno what corrisponding sides are??? To solve a proportion, use cross products. For example, the proportion = can be solved as follows: = Write the original proportion. 50 n = 3 180 Find the cross
  25. HOMEWORk check english

    1. Jordan was studying for his criminal justice exam, and his brother offered to help him study. He went over each of the questions with him. a. Jordan was studying for his criminal justice exam, and his brother offered to help him study; so he went over
  26. Homework check english

    1. Jordan was studying for his criminal justice exam, and his brother offered to help him study. He went over each of the questions with him. a. Jordan was studying for his criminal justice exam, and his brother offered to help him study; so he went over
  27. physics

    Using Newton's Law of Universal Gravitation, compare the effect of the Sun and the Moon on the tides. Constants: Mass of the Moon, M☽= 7.348E22 kg. Moon's semi-major axis, a☽= 3.844E8 m. You can find the other constants you will need on the
  28. Haley

    Three circles with radii 35cm, 50cm, and 65cm respectively are tangent to each other externally. Find the angles of the triangle formed by joining the centers of the circles. My teacher said to use the cosine law cause you know 3 sides but no angles. But I
  29. Math

    The measure of one acute angle of a right triangle is twelve more than three times the measure than the other acute angle. Find the measure of each acute angle of the right triangle.
  30. early childhood

    How can you help parents deal with issues of attachment. Are you asking this as a friend, a teacher, a grandparent, a therapist, or ?? Please clarify your question and give us your ideas. We'll be glad to comment on them.
  31. Chemistry ( I NEED HELP REAL QUICK )

    How much Al is needed to react with 675 mL of 0.655M HCl solution according to the reaction => 2Al + 6HCl→2AlCl3+ 3H2 Help your friend!
  32. math

    I have to write an equality....plz help Three friends washed cars together and shared their total earnings equally. They earned at least $150 one weekend. How much did each friend earn!
  33. social studies

    how long does it take from Taipei, Taiwan to Miami,FL?? This is not a homework! i just wanna know it by myself cus my friend is going to visit me dis summer. i can't get the info from google or yah
  34. reading

    in the story the dog of Pompeii. The questions says the author muses that tito becomes a famous friend to and healer of animals. How is that idea an extension of the storys theme?
  35. English

    (1) We decided to climb Mt. Rainer, but it was a long, hard journey to Washington State from Medford, Oregon. (2) We were worried about our likely sucess in the cold enviroment of the upper slopes. (3) For one thing, Marty was broke and anxius about having
  36. Math

    A rectangular piece of metal with dimensions 14 CMA 24 CM is used to make an open box equal squares of side length X centimeters are cut from the corners and sides are folded up a polynomial function that represents the volume, V,of the box is:
  37. calculus

    A power station is on one side of a river that is 0.5 mile wide, and a factory is 5.00 miles downstream on the other side of the river. It costs $15 per foot to run overland power lines and $23 per foot to run underwater power lines. Estimate the value of
  38. math

    The side length of a rectangular box with a square base is increasing at the rate of 2 ft/sec, while the height is decreasing at the rate of 2 ft/sec. At what rate is the volume of the box changing when the side length is 10 ft and the height is 12 ft?
  39. Physics

    Two pendulums are set up side by side. One pendulum P, consists of a 0.240 kg mass that is suspended on a string that is 65.0 cm long. The other pendulum, Q, has a 0.360 kg mass that is suspended on a string that is 39.0 cm long. The two masses are pulled
  40. social studies

    12. Why were the native Americans so important in the clash between the french and the British explain which side french of British received the best advantage with the native Americans provide evidence supporting your reason for selecting that side. I
  41. physics Only one part left !!!!!! PLZ HELP

    A uniform, square metal plate with side L = 3.50 cm and mass 0.087 kg is located with its lower left corner at (x, y) = (0, 0) as shown in the figure. Two squares with side length L/4 are removed from the plate. (a) What is the x-coordinate of the center
  42. physics Only one part left !!!!!! PLZ HELP

    A uniform, square metal plate with side L = 3.50 cm and mass 0.087 kg is located with its lower left corner at (x, y) = (0, 0) as shown in the figure. Two squares with side length L/4 are removed from the plate. (a) What is the x-coordinate of the center
  43. Science

    I'm desperate and I cannot find the answer to this question.... As the name implies, globular proteiens tend to have a roundish, globular shape. What types of side chains might you expect to find on the amino acid residues that face the outside of a
  44. physics

    A golf ball is hit with an initial velocity of 50 m/s at an angle of 39 degrees above the horizontal. How far does it travel?(horizontal distance)(g = 9.8 m/s2). I made a right triangle. Found that Vi(x)=38.857, Vi(y)=312.466, both Vf's were 0, although
  45. Physics

    I was given a problem that has a triangle shape, which two sides should represent strings. The axial area that is rotating has an angle of 40 degrees. And it rotates by w (omega) = 1 Rad/Sec. I have to find tension of both the strings. How would I exactly
  46. math

    if the area of a rectangle is 27 square inches and one side is 3 inches how many square inches is the other side
  47. Math

    Find the ratio and simply. Triangle find the shortest side to the longest 22.2, 9.6, 20 The simplified ratio is Type ratio as a simplified fraction
  48. physics

    The loaded car of a roller coaster has mass M = 320 kg. It goes over the hig a speed v of 21.4 m/s. The radius of curvature R of the hill is 62.3m (a) What is the force (N) that the track must exert on the car? (positive is (b) What must be the force (N)
  49. Trig

    From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the oppisite side of the runway are 6 degrees and 13 degreess respectivel. The points and the tower are in the same vertical
  50. math

    In triangle ABC, angle B = 3, angle A and angle C = 8 angle A. How many degrees are there in angle B ? a. 15 degree b. 30 degree c. 45 degree d. 60 degree e. 120 degree please answer and explain
  51. algebraic equation and inaqualities

    in a triangle XYZ,the measure of angle Y is 40 more than the measure of angle X.the measure of angle Z is 10 less than three times the measure of angle X.find the measure of angle X
  52. Physical Geography

    Assume that a parcel of air is forced to rise up and over a 6000-foot-high mountain. The initial temperature of the parcel at sea level is 76.5°F, and the lifting condensation level (LCL) of the parcel is 3000 feet. The DAR is 5.5°F/1000’ and the SAR
  53. Physical Geography SOMEONE PLEASE HELP!

    Assume that a parcel of air is forced to rise up and over a 6000-foot-high mountain. The initial temperature of the parcel at sea level is 76.5°F, and the lifting condensation level (LCL) of the parcel is 3000 feet. The DAR is 5.5°F/1000’ and the SAR
  54. Physical Geography PLEASE HELP!

    Assume that a parcel of air is forced to rise up and over a 6000-foot-high mountain. The initial temperature of the parcel at sea level is 76.5°F, and the lifting condensation level (LCL) of the parcel is 3000 feet. The DAR is 5.5°F/1000’ and the SAR
  55. Physics

    A stunt pilot is attempting to drop a water balloon from a moving airplane onto a target on the ground. The plane moves at a speed of 82.8 m/s and a 49° above the horizontal when the balloon is released. At the point of release, the plane is at an
  56. Mat

    write the equation of the line passing through each of the given pairs of points. write yourresults in slope-interceptformwhere possible. (-1, 3) and (4, -2) get your slope I got m =(-2-3)/(4+1) = -1 pick one of the points and m=-1 to sub into y = mx + b,
  57. trigonometry, check please

    A 12 ft. ladder makes a 33o angle with the side of a house. To the nearest tenth of a foot how high up on the house does the ladder come? I set it up 12xcos33 giving me 10.0
  58. Math

    From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the opposite side of the runway are, and , respectively. The points and the tower are in the same vertical plane and the
  59. Calculus

    Find the rectangle of largest area that can be inscribed in a semicircle of radius R, assuming that one side of the rectangle lies on the diameter of the semicircle. NOTE: Let L denote the length of the side that lies on the diameter and H denote the
  60. Math

    In a triangle, one angle is twice the measure of the second angle. The third angle is three times the measure of the second angle. Find the measure of eah angle.
  61. English

    I wrote 5 sentences for you to check. Thank you. 1) In their backpacks they have packed extra clothes, food and water for the two-day competition. I can see the finishing line in the background (on the top left-hand side??) 2) The first boy on the left is
  62. math

    a 4 foot by 8 foot panel, the top of wich is located 18 foot below the water line on a dam wall is subject to how much forec? ( assume the panel is oriented with the long side horizontal)
  63. Geometry HOMEWORK HELP ME PLEASE!

    Draw the triangle with vertices D(-2,1), U(4,9), and E(10,1) On a Graph. 2. Find DU, UE, AND DE. (Distance) 3. Classify Triangle DUE by its sides. 4. Write the standard form of the equation of each line: DU, UE, and DE.Also, find the slode and then the
  64. Math

    Three picture frames are on a dresser.two are shaped like squares and the other is a trapazoid. how many sides are there in the frames altogether? Please help today
  65. math

    A friend drives 15 miles west and then 5 miles east. How far away is she from her starting point?
  66. Physics

    What is the force of attraction between you and your friend steve if you are 55 kg,the mass of steve is 60 kg, and you are sitting 2.4 meters apart?
  67. English

    my friend also need idea to write about independent story, he not want to do one on human, what he write about animals?
  68. math

    (3 + 2(8 + 5 • 2 ÷ 4) – 9) what is the correct answer to this problem I got 59 when i entered it on my sci-calculator But my friend got a different answer of 15
  69. Algebra

    There is 1/3 of a cake shared equally among 4 friends . What fraction of a pound of cake will each friend get?
  70. math

    Seven friends share 3 liters of apple juice equally how much juice does each friend get?
  71. health

    if a medical assistant knows that a patient's boy friend has Hiv and the patient does not know what should she do with the information
  72. math

    What is 3^-2 (it is 3 to the -2 squared) I thought the answer was 1/9 and my friend thought it is .1 repeated .1 with the line over it can you tell us which one of us is correct? Thank you
  73. health

    your client has received a patchwork bedspread made by a friend-how would you support the client to use it
  74. Gaelic

    Can I have a list of all the different types of Gaelic currently spoken in the UK? I see that my friend has already submitted a similar question!
  75. Calculus

    A square sheet of cardboard with a side 16 inches is used to make an open box by cutting squares of equal size from the four corners and folding up the sides. What size squares should be cut from the corners to obtain a box with largest possible volume?
  76. Physics

    A cyclist starts from rest and coasts down a 6.5∘{\rm ^\circ} hill. The mass of the cyclist plus bicycle is 95kg{\rm kg} . The cyclist has traveled 270m{\rm m} .What was the net work done by gravity on the cyclist? How fast is the cyclist going?
  77. algebra

    A square and a rectangle have the same perimeter. The length of the rectangle is 4cm less than twice the side of the square, and the width of the rectangle is 6 cm than the side of the square. find the perimeter of each figure
  78. math Question

    classify the triangle by its angles and its sides. Explain how you knew which classifications to use. top of the triangle is 70 degrees, bottom right is 45 degrees and bottom left is 65.
  79. geometry

    i am lost on this one TAKE Three points K,L,M on sides BC,CA,AB of the triangle ABC. Prove that at least one of the triangles AML,BKM,CLK has area less than or equal to 1/4 area of triangle ABC
  80. Chemistry

    You found an unknown metal sample shaped as a cube with each side measuring 2.00 cm. The cube's mass is 48.0 . Your colleague examined the mystery cube with X-ray diffraction and told you that it contains just one element arranged in a body-centered-cubic
  81. CALCULUS

    Find the area A of the largest rectangle that can be inscribed in a right triangle withh legs of length 3cm and 4cm if two sides of the rectangle lie along the two legs of the triangle.
  82. English

    1) At first he lowered his friend on his rope down the mountain (is it correct to use lower) but as his friend was pulling him off the mountain he decided to cut the rope. 2) He decided to cut the rope so as not to fall off the mountain (is "so as not"
  83. math

    How many sides does a regular octagon have, and what do we know about its sides and angles I think a octagon has 8 sides but I don't know about the angles...I'll go and look it up and if I find out I'll post it I found on wikipedia that it's internal
  84. Physics

    A copper (shear modulus 4.2 x 1010 N/m2) cube, 0.324 m on a side, is subjected to two shearing forces, each of magnitude F = 6.93 x 10 5 N (see the drawing). Find the angle (in degrees), which is one measure of how the shape of the block has been altered
  85. Trigonometry

    Point P is located at the intersection of the unit circle and the terminal side of angle theta in standard position. Find the coordinates of P to the nearest thousandth. theta = -105degrees Please explain the steps. I'm completely stuck.
  86. PHYSICS

    A copper (shear modulus 4.2 x 1010 N/m2) cube, 0.248 m on a side, is subjected to two shearing forces, each of magnitude F = 3.84 x 10 6 N (see the drawing). Find the angle (in degrees), which is one measure of how the shape of the block has been altered
  87. Math

    Three pictures hang side by side on a wall. What is the total area of the wall that the pictures cover? Length is 10 1/2 inches, 10 1/2 inches, 10 1/2 inches Width 14 2/3 inches Would I need to add 10 1/2 plus 10 1/2 plus 10 1/2 and then multiply by 14 2/3
  88. English

    What type of prepositional phrase are in the following sentences? Adjective or adverb? From the beginning the trail was rocky and steep. Adverb? On one side was a rocky ledge. Adverb? The view from the other side was fantastic. Adjective? The other
  89. geometry

    The sides of a parallelogram are 25 cms and 15 cms.The height to the 25 cms side is 15 cms.What is the speciality of this parallelogram ?
  90. FACTORING HELP ASAP

    i don't know how this works.. but im helping my friend with some factoring and i have a few questions
  91. English

    What is the difference between 'female friend' and 'girlfriend'? Does 'girlfriend' have any negative connotation?
  92. Math

    I run 1 3/4 miles each day. my friend runs 4 times as far as I do. how far does she run ?
  93. math

    Sally has 5 hershey bars she has to share the bars with 7 friends how much will each friend get?
  94. math

    Joe and his 7 friends share 3 liters of juice how much juice each friend gets
  95. Pre-algebra

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

    Write a letter to your friend inviting him/her for your birthday party in french
  97. A. social studies urgent PLEEEEAAAAAASSSE HELP!!!

    12. Why were the native Americans so important in the clash between the french and the British explain which side french of British received the best advantage with the native Americans provide evidence supporting your reason for selecting that side. I
  98. statistics

    In order to study whether IQ level is related to birth order, data were collected from a sample of 540 students on their birth order (Oldest/In Between/Youngest) and their score on an IQ test. The data collected in this study would be best displayed using:
  99. Math

    a)Write a function o represent the area of the rectangle. one side - 5x+15 other side - 31-2x b) Graph the function- lebel x and yint c)what dp the x-intercepts represent in this situaltion? d)Does the funtion have a maximum value in this situaltion? Does
  100. Algebra

    Yhe problem is wanting me to find the Perimeter of a triangle but only two sides Are marked with 3x + 2 on both sides How do I solve to find the perimeter