1. physics (cross product vectors)

    Two vectors are lying in the xz plane: A=2.00i + 3.00k and B= -9.00i + 2.00k. a) What is the value of AxB? Check my solution: I found through calculations that the value is 23j. b) What is the magnitude |AxB|? I could do ABsin theta, but I have no angle

    asked by steve on January 23, 2007
  2. Physics

    A football player runs the pattern given in the drawing by the three displacement vectors A ,B ,C and . The magnitudes of these vectors are A = 4.00 m, B = 17.0 m, and C = 19.0 m. Using the component method, find the (a) magnitude and (b)direction of the

    asked by Kelli on July 14, 2011
  3. Physics

    Measuring coefficients of friction. A coin is placed near one edge of a book lying on a table, and that edge of the book is lifted until the coin just slips down the incline. The angle of the incline Theta C, called the critical angle, is measured. (a)

    asked by Mandy on September 27, 2009
  4. st anthenis physics

    A+B+C=0out of three vector two r equal in magnitudeand magnitude of third is root 2times that of eitherof two hsving equal magnitude.than angle beteen vectors r

    asked by rashika on May 14, 2014
  5. trig

    If sin theta is equal to 5/13 and theta is an angle in quadrant II find the value of cos theta, sec theta, tan theta, csc theta, cot theta.

    asked by Julise Alliance on February 28, 2013
  6. Trig

    I need help setting these up. 1.) Use the parallelogram rule to find the magnitude of the resultant force for the two forces shown in the figure. round to one decimal place. Theta= 35 degree, b=98 lbs, c=55lb 2.) Find the magnitude and direction angle for

    asked by Derrick on November 26, 2014
  7. physics

    Can you help me with this one also? I know how to do it with 3 vectors but I can't seem to draw it with 4 vectors. The magnitudes of the four displacement vectors shown in the drawing are A=16.0 m, B=11.0 m, C=12.0 m, and D=26.0 m. Determine the (1)

    asked by Brittany on January 23, 2011
  8. PHYSICS

    The figure shows two displacement vectors and . Vector points at an angle of 20.0° above the x axis and has an unknown magnitude. Vector has an x component Bx = 31.0 m and has an unknown y component By. These two vectors are equal. Find (a) the magnitude

    asked by Anonymous on September 16, 2015
  9. science (physics) Need to solve this today please

    (a) Express the vectors A, B, and C in the figure below in terms of unit vectors. (b) Use unit vector notation to find the vectors R = A + B + C and S = C – A – B. (c) What are the magnitude and directions of vectors R and S? Well the picture goes and

    asked by ~christina~ on September 29, 2007
  10. Physics

    2 vectors have same magnitude.The magnitude of the resultant vector of these 2 vectors are same as either of both vectors.What is the angle between 2 vectors?

    asked by Tangy on November 21, 2014
  11. AP Physics

    there are two vectors in quadrant three one with a magnitude of 31.0N and has a direction of 117degrees in the negative direction from the x axis the other has an unknown magnitude and unkown theta in the positive direction starting from 90 degrees Find

    asked by Sierra on November 21, 2010
  12. maths

    1) Suppose that an insect crawls in a plane in a path given in polar coordinates by r = be^kt; theta = kt; where b; k are positive constants and t is time.Find the velocity and acceleration vectors of the insect. Show that the angle between the velocity

    asked by Jess on February 20, 2013
  13. physics-vectors

    If the magnitude of the sum of two vectors is greater than the magnitude of either vector, then: If the magnitude of the sum of two vectors is less than the magnitude of either vector, then: a. the scaler product of the vectors must be negative b. the

    asked by mekeke on August 6, 2007
  14. Precalculs

    I have no idea how to do these type of problems. -------Problem-------- Solve each equation on the interval 0 less than or equal to theta less than 2 pi 42. SQRT(3) sin theta + cos theta = 1 ---------------------- There is an example prior to the

    asked by Kate on February 28, 2010
  15. trig

    h t t p : / / i m g 4 0 . i m a g e s h a c k . u s / c o n t e n t . p h p ? p a g e = d o n e& l = i m g 4 0 / 1 4 8 / a s d a s d y e . j p g & v i a = m u p l o a d (def of tan theta = a^-1 o)a = o opposite = adjacent tan theta written with respect to

    asked by trig on September 6, 2009
  16. Calculus

    For which following condition, will the dot product of two vectors be zero? a) If the angle between them is 90°. b) If the angle between them is 0°. c) If the angle between them is 180° d) If the vectors have the same magnitude. Anyone know what the

    asked by MileyWannabe on July 4, 2008
  17. Physics

    1. Consider the two vectors P and Q. The definition of P is P = 􀀃i × (􀀃i × 􀀃j). The definition of Q is Q = (􀀃i × 􀀃i) × 􀀃j . a. The magnitude of P is equal to the magnitude of Q. b. The magnitude of P is greater than the magnitude of

    asked by Sarah on December 27, 2011
  18. trig

    Find csc(theta), tan (theta), and cos (theta), where theta is the angle shown in the figure. Give exact values, not decimal approximations c=10 b=7 a=7.14 the right angle is locate between sides a and b and the theta angle is an acutle angle sides b and c.

    asked by Joey on March 24, 2014
  19. physics

    A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C . The magnitudes of these vectors are A = 5 m, B = 16.0 m, and C = 16.0 m. Using the component method, find the magnitude and direction è of the

    asked by Brittany on January 20, 2010
  20. Math

    1. Let (-7, 4) be a point on the terminal side of (theta). Find the exact values of sin(theta), csc(theta), and cot(theta). 2. Let (theta) be an angle in quadrant IV such that sin(theta)=-2/5. Find the exact values of sec(theta) and tan(theta). 3. Let

    asked by Kandee Johnson on May 15, 2011
  21. Physics

    The resultant of two vectors a and b is perpendicular to the vector a and its magnitude is equal to the half magnitude of vector b the find angle between a and b

    asked by Deepak on August 13, 2015
  22. physics

    The three displacement vectors in the drawing have magnitudes of A = 5.73 m, B = 6.48 m, and C = 3.12 m. Find the resultant ((a) magnitude and (b) directional angle) of the three vectors by means of the component method. Express the directional angle as an

    asked by anonymous on February 3, 2014
  23. Physics

    The three displacement vectors in the drawing have magnitudes of A = 5.48 m, B = 5.23 m, and C = 4.75 m. Find the resultant ((a) magnitude and (b) directional angle) of the three vectors by means of the component method. Express the directional angle as an

    asked by joe on September 9, 2015
  24. Science

    Two equal vectors are working at a point.The resultant is equal to one of those vectors.Prove that the resultant bisects the angle between the vectors.

    asked by Julekha on March 14, 2016
  25. Physics

    2 displacement vectors of 15 meters and 10 meters are combined. a.Find the magnitude of the minimum possible resultant and the angle between the vectors. b. Find the magnitude of the maximum possible resultant and the angle between the vectors.

    asked by Bailey on September 16, 2007
  26. Science

    2 vectors have same magnitude.The magnitude of the resultant vectors is same as either of both vectors.What is the angle between 2 vectors?

    asked by Tangy on November 21, 2014
  27. Physics

    Given Vector A with magintude 9.17 feet and Vector B with magnitude of 10.58 feet, what is the resultant of the two vectors added together? Answer: I know it would depend on the direction of the vector. If in the same line we would add them or if opposite

    asked by Nisar on August 30, 2005
  28. Math vectors

    For which of the following conditions will the cross product of two vectors be zero? a) If the angle between them is 90°. b) If the angle between them is 0°. c) If the angle between them is 45°. d) If the vectors have the same magnitude.

    asked by Sheliza on February 26, 2015
  29. Physics

    Consider two vectors where F1 = 40 N, F2 = 57 N, and \theta _{1} = 240o and \theta _{2} = 25o, measured from the positive x-axis with counter-clockwise being positive. What is the magnitude of the equilibriant?

    asked by Jordan on December 14, 2010
  30. physics

    Four vectors, each of magnitude 89 m, lie along the sides of a parallelogram. The angle between vector A and B is 77◦. A 89 m C 89 m B 89 m D 89 m What is the magnitude of the vector sum of the four vectors? Answer in units of m I got 346.8757431m, but

    asked by Jane on September 1, 2011
  31. physics

    Consider two vectors where F1 = 45 N, F2 = 63 N, and \theta _{1} = 240o and \theta _{2} = 25o, measured from the positive x-axis with counter-clockwise being positive. What is the magnitude of the equilibriant? [to 3 decimal places]

    asked by asdas on December 14, 2010
  32. Physics

    The three displacement vectors have a magnitudes of a= 5.00 meters, b= 5.00 meters, and c= 4.00 meters. Find the resultant magnitude and Direction angle of the three vectors by names of the component method. Express the directional angle as an angle above

    asked by Anonymous on September 8, 2016
  33. physics

    Given: vector a+b+c= 0. Out of the three vectors a,b and c two are equal in magnitude. The magnitude of the third vector is √2 times that of either of the two having equal magnitude. The angles between the vectors are:

    asked by jha on June 27, 2014
  34. angular momentum

    a 8.20 kg particle P has a position vector of magnitude 6.90 m and angle θ1 = 42.0° and a velocity vector of magnitude 6.70 m/s and angle θ2 = 25.0°. Force , of magnitude 8.90 N and angle θ3 = 28.0° acts on P. All three vectors lie in the xy plane.

    asked by jose on May 30, 2012
  35. Math

    Given any right triangle with an acute angle theta, a) Explain why csc theta is always greater than or equal to 1 b) Explain why cos theta is always less than or equal to 1

    asked by Emily on October 8, 2010
  36. Physics

    The sum & difference of two non-zero vectors Ä & B are equal in magnitude.what can you conclude about these vectors?why?

    asked by Minte on November 25, 2012
  37. Calculus

    1. Find an ordered pair that represents 6 vector v - 5 vector w if vector v =(9,5) and vector w = (6,9). 2. Find an ordered triple that represents 6 vector y + 4 vector z if vector y = (2,6,8) and vector z = (7,-2,6) 3. Find the magnitude of vector WX for

    asked by anon on August 30, 2012
  38. Trigonometry

    Thank you STEVE!!!!! Suppose that Cos (theta) = 1/square root 2 if 0

    asked by George on January 23, 2013
  39. Physics

    The sum of two vectors of fixed magnitudes has the greatest magnitude when the angle between these two vectors are?

    asked by Anonymous on October 5, 2016
  40. physics

    Rewrite the following vectors in terms of their magnitude and angle (counterclockwise from the +x direction). 1) A displacement vector with an x component of +9.5 m and a y component of -9.6 m. magnitude: 2) angle: 3) A velocity vector with an x component

    asked by amanda on February 12, 2018
  41. Math Trig Help

    sin theta = x/3, with theta in the first quadrant, find the expression for cos theta and tan theta. Answers will be in algebraic terms of x. Give exact answers with 0 < theta

    asked by Leeroy on November 7, 2014
  42. physics

    The magnitudes of the four displacement vectors shown in the drawing are A = 15.0 m, B = 11.0 m, C = 12.0 m, and D = 21.0 m. Determine the magnitude and directional angle for the resultant that occurs when these vectors are added together.

    asked by Anonymous on January 20, 2012
  43. physis

    The magnitudes of the four displacement vectors shown in the drawing are A = 13.0 m, B = 11.0 m, C = 12.0 m, and D = 27.0 m. Determine the magnitude and directional angle for the resultant that occurs when these vectors are added together.

    asked by Natasha on January 20, 2012
  44. physics

    The magnitude of vector A is 18 units at an angle of 90 degrees with the x-axis, and the magnitude of vector B is 12 units at an angle of 330 degrees with the x-axis. What vector C must be added to the vectors A and B so that the resultant of these three

    asked by Ro2ita on March 31, 2012
  45. physics

    The magnitude of the scalar product of vectors A and B is three times as large as the magnitude of the vector product of the same two vectors. If they were placed tail-to-tail in space, A and B would form an angle of approximately how much?

    asked by Edith on December 8, 2010
  46. physics

    Consider two vectors where F1 = 31 N, F2 = 67 N,and theta 1 = 240 degrees and theta 2 = 25 degrees, measured from the positive x-axis with counter-clockwise being positive. What is the magnitude of the equilibriant?

    asked by kathy on November 27, 2009
  47. physics

    The magnitude of two vectors p and q differ by 1. The magnitude of their resultant makes an angle of tan inverse ( 3 / 4 ) with p. The angle between p and q is

    asked by raghavendra on July 4, 2014
  48. Please Help asap for math

    Given the following: vector u= [-2,-1,2] and vector v=[1,-1,-4] and vector w= [4,3,-2] find: a)theta, the angle between vectors, u and w. b)Are the vectors, u, v, and w coplanar?Show your answer algebraically.

    asked by Tina on October 24, 2014
  49. Physics

    An object is shot at 20m/s at an angle theta. The object lands 24m away. What is the angle? Can you check if I am doing this right? I had v(initial) = 20 m/s g = 9.8 m/s^2 x = 24m 1st I solved for time: x = v(initial) t x = v(initial) cos(theta) t 24 = 20

    asked by Dreskillz89 on September 22, 2009
  50. Precalculus

    Find two values for theta such that theta is greater than or equal to 0 but less than or equal to 2pi. 1. Tan theta=1.1071 2. Sin theta = -0.8818

    asked by Anonymous on September 22, 2014
  51. Precalculus

    Find two values for theta such that theta is greater than or equal to 0 but less than or equal to 2pi. 1. Tan theta=1.1071 2. Sin theta = -0.8818

    asked by Anonymous on September 23, 2014
  52. Physics

    Three vectors are shown in the figure. Their magnitudes are given in arbitrary units. Determine the sum of the three vectors. Give the resultant in terms of (a) magnitude and (b) the angle within the positive x axis.

    asked by Rachel on September 24, 2018
  53. Physics

    partscoretotalsubmissions1--10/12--10/13--10/14--10/1----4--The tail of a vector is fixed to the origin of an x, y axis system. Originally the vector points along the +x axis. As time passes, the vector rotates counterclockwise. Describe how the sizes of

    asked by Panda on May 7, 2007
  54. Precalculus

    Circle O below has radius 1. Eight segment lengths are labeled with lowercase letters. Six of these equal a trigonometric function of theta. Your answer to this problem should be a six letter sequence whose letters represent the segment lengths that equal

    asked by Human on September 24, 2016
  55. trig

    If tan theta = sin theta, and theta is greater than or equal to 0 and less than or equal to 2 pi. find cos theta and what is theta

    asked by Anonymous on February 4, 2012
  56. Trigonometry

    If cot 2(Theta) = 5/12 with 0 (less than or equal to) 2(Theta) (Less than or equal to) Pi, find the cos(Theta), sin(Theta), and tan(Theta).

    asked by Marie on August 3, 2012
  57. math

    n angle theta satisfies the relation (CSC theta)(cos theta)=-1 Give an example of information needed to determine a unique value for theta If sec theta is known to be negative, what is the CSC theta value of theta?

    asked by ibsa on March 28, 2019
  58. Math

    An angle theta satisfies the relation (csc theta)(cos theta)=-1 Give an example of information needed to determine a unique value for theta If sec theta is known to be negative, what is the csc theta value of theta?

    asked by Saniya on February 23, 2017
  59. physics

    A football player runs the pattern given in the drawing by the three displacement vectors , , and . The magnitudes of these vectors are A = 4.00 m, B = 15.0 m, and C = 18.0 m. Using the component method, find the (a) magnitude and (b)direction of the

    asked by jacob on August 14, 2015
  60. Physics

    A football player runs the pattern given in the drawing by the three displacement vectors , , and . The magnitudes of these vectors are A = 6.00 m, B = 13.0 m, and C = 15.0 m. Using the component method, find the (a) magnitude and (b)direction of the

    asked by Kristi on July 9, 2011
  61. Math

    Sin theta = 1/4, what is sec theta?, tan theta? give exact answers for 0 less than or equal to theta less than equal to pi/2

    asked by Saday on November 7, 2014
  62. trig

    given that 0 is less then or equal to theta and theta is less then or equal to pi. ans cos theta = 2/squar root of 7. Find sin theta

    asked by Lilly on November 28, 2012
  63. Physics

    Please help me with this its very hard to visualize the problem. The analytical method of adding vectors expressed in terms of their components may be applied to vectors in three dimensions, for which graphical work is inconvenient. Find the magnitude of

    asked by Donna on September 26, 2016
  64. Physics

    I'm tyring to undersatnd uh motion of a particle at an incline on a ramp with a certain angle with the horizontal. the force pointing downwards is mg the force that is pointing upwards exerted by the ramp onto the the particle is the normal force which is

    asked by Physics on July 11, 2009
  65. Physics

    2. We have two vectors that line in the x-y plane. If we take the cross-product of those two vectors we know that a. the magnitude of the cross-product will always be equal to the product of the magnitudes of the two vectors. b. the magnitude of the

    asked by Sarah on December 27, 2011
  66. Physics

    An isolated segment of wire of length L=4.50 m carries a current of magnitude i=35.0 A at an angle theta=50.3 degrees with respect to a constant magnetic field with magnitude B= 6.70E-2 T. What is the magnitude of the magnetic force on the wire? a) 2.66 N

    asked by Jessica on October 24, 2011
  67. College Physics

    14) Given the following vectors, find the magnitude and direction: • A = 47 m and the angle is 0° • B = 62 m and the angle is 35° This is relative to the x-axis Magnitude: 401 m 140 m 104 m 0 m 503 m Direction: 20° 45° 55° 220° 90°

    asked by Stephen on December 6, 2012
  68. Math

    angle theta is in standard position on a co-ordinate grid. the terminal arm of theta is in quadrent 2 on the line that's equation is 3x-4y=0. Determine the sine of this angle and then the measure of angle theta.

    asked by Rachel on May 1, 2016
  69. Trig

    Solve the following interval 0

    asked by Kay on October 24, 2007
  70. Physics

    1. Consider the two vectors P and Q. The definition of P is P = 􀀃i × (􀀃i × 􀀃j). The definition of Q is Q = (􀀃i × 􀀃i) × 􀀃j . a. The magnitude of P is equal to the magnitude of Q. b. The magnitude of P is greater than the magnitude of

    asked by Sarah on December 27, 2011
  71. physcs (Geometry bit)

    how do you prove that an object on a ramp resolved into it's gravity components were the x dreiction is down the ramp and the y direction is the direciton of the normal force Force of gravity x component /\ |Normal force

    asked by physcs (Geometry bit) on August 10, 2009
  72. Physics

    Two ropes exert forces holding a suspended box having a mass of 100 N at rest. If one rope is at an angle of 30o to the horizontal and exerts a force of 40 N along the rope, what is the tension on the other rope and what is the angle between the rope and

    asked by Dreskillz89 on September 27, 2009
  73. Math (trigonometry)

    Hi, I need help with these problems, I'm not sure where to start. The book's examples are different. Thanks in advance!! 1.) To find the distance AB across a river, a distance BC of 472m is laid off on one side of the river. It is found that B=108.1

    asked by Emma on November 23, 2014
  74. Math

    If theta is the smallest angle in a right triangle with side lengths of 3, 4, and 5 units, then what does sin theta equal? 3/4*** (???) 3/5 4/5 5/3

    asked by Max on February 4, 2018
  75. science

    Find the resultant of vectors angle A of magnitude 10units in the direction N40E and angle B of magnitude 8units in the direction S30E.

    asked by KAFAYAT on April 18, 2010
  76. calculus

    a trapezoid is a quadrilateral with (only) two sides (called bases) that are parallel. an isosceles trapezoid has two equal legs. the area of a trapezoid is A=(1/2)*h*(b1+b2) where b1 and b2 are the two parallel bases and h is the altitude. your problem: a

    asked by robert on November 17, 2011
  77. math

    Two vectors have magnitudes of 3 units and 8 units respectively. The resultant of these two vectors has a magnitude of 8 units. What is the angle between these two vectors?

    asked by dave on March 1, 2013
  78. calculus

    show that the area(A) of an isosceles triangle, whose equal sides are of length s and angle between them is theta, is A=1/2s^2sin theta

    asked by meeh on November 16, 2008
  79. Math

    angle theta is in the standard position and 0'=

    asked by Han on June 11, 2014
  80. trig

    If theta is the measure of an angle in standard position with the given conditions, find the quadrant(s) in which the terminal side of theta lies. a) cot theta < 0 b) cos theta > 0 , csc theta < 0

    asked by Anonymous on January 26, 2012
  81. trig

    If theta is an angle in standard position, state in what quadrants its terminal side can lie if theta is equal to -415 degrees?

    asked by Rick on February 10, 2012
  82. Math

    The angle between two force a and b vectors is 114o. The scalar projection of is – 13 N. Determine the magnitude of b. Can the magnitude be a negative number?

    asked by Bob on June 3, 2018
  83. math

    change equations to polar form: 1) y= -1 2) x^2 + y^2 = 4 how would i do these questions? thank u to convert to polar, you use the relationship: x = rcos(theta), and y = rsin(theta) 1) rsin(theta) = -1, r = 1-/sin(theta) 2)try this yourself by substituting

    asked by hmmmm on September 25, 2006
  84. algebra/trigonometry

    What are the values of theta in the interval 0degrees less than or equal to theta less than or equal to 360 degrees that satisfy the equation tan theta - radical3=0

    asked by Sally on May 18, 2010
  85. physics

    The displacement vector has scalar components of Ax = 80.0 m and Ay = 60.0 m. The displacement vector has a scalar component of Bx = 60.0 m and a magnitude of B = 75.0 m. The displacement vector has a magnitude of C = 100.0 m and is directed at an angle of

    asked by Anonymous on May 20, 2016
  86. Elementary mechanics

    (Q1) 2 forces act on a point object as follows: 100 at 170 and 100 at 50.Find the resultant force (a)110N at 50 (b)110N at 100 (c)100N at 110 (d) 100N at 50 (Q2) given 3 vectors a=-i-4j+2k,b=3i+2j-2k,c=2i-3j+k,Calculate a-(b-c) (a)-6(b)6(d)9(d)-9 (Q3)The

    asked by david on July 12, 2013
  87. physics

    A ball is attached to a string with length of L. It swings in a horizontal circle, with a constant speed. The string makes an angle (theta) with the vertical, and T is the magnitude of the tension in the string. 1)Determine the Mass of the Ball.

    asked by ken on November 4, 2007
  88. physics

    A small mass m hangs at rest from a vertical rope of length l that is fixed to the ceiling. A force F then pushes on the mass, perpendicular to the taut rope at all times, until the rope is oriented at an angle (theta)=(theta)0 and the mass has been raised

    asked by sophie on May 22, 2012
  89. PHYSICS Please Help

    A box rests on a plank that is inclined to the horizontal. As the angle between the plank and the horizontal increases, does the component of the weight of the box parallel to the plank increase, decrease, or remain the same? Explain not sure The component

    asked by Suzanne on October 16, 2006
  90. physics

    Three vectors are shown in Fig. 3-32 (A = 62.0 , B = 58.0°). Their magnitudes are given in arbitrary units. Determine the sum of the three vectors. (a) Give the resultant in terms of components. Rx = Ry = (b) What is the magnitude of the resultant? What

    asked by michael on September 30, 2012
  91. physics

    Three vectors are shown in Fig. 3-32 (A = 60.0 , B = 56.0°). Their magnitudes are given in arbitrary units. Determine the sum of the three vectors. (a) Give the resultant in terms of components. (b) What is the magnitude of the resultant? What is the

    asked by joe on September 30, 2012
  92. physics

    The magnitude of the vectors F is 20 N, the force on the right is applied at an angle 55◦ and the the mass of the block is 75 kg. If the surface is frictionless, what is the magnitude of the resulting acceleration? Answer in units of m/s2.

    asked by sally on February 12, 2010
  93. physics

    Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four displacement vectors shown in the drawing are A = 15.0 m, B = 10.0 m, C = 12.0 m, and D = 29.0 m. Determine the (a) magnitude and (b) direction for the

    asked by marah on March 10, 2014
  94. Physics

    Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four displacement vectors shown in the drawing are A = 16.0 m, B = 12.0 m, C = 13.0 m, and D = 23.0 m. Determine the (a) magnitude and (b) direction for the

    asked by Sara on May 29, 2012
  95. physics

    Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four displacement vectors shown in the drawing are A = 17.0 m, B = 10.0 m, C = 11.0 m, and D = 23.0 m. Determine the (a) magnitude and (b) direction for the

    asked by Lydia on January 30, 2016
  96. physics

    if theta is the angle between unit vectors A bar and B bar, then (1-A bar.B bar)/(1 plus A bar.B bar) is equal to

    asked by raghavendra on July 9, 2014
  97. physics

    A meteor P is tracked by a radar observatory on the earth at O. When the meteor is directly overhead (theta = 90), the following observations are recorded: r = 80km, r'= -20km/s, and theta'= 0.4rad/s. (a) Determine the speed of the meteor and the angle,

    asked by Jessi on October 10, 2009
  98. PHYSICS

    Vector A⃗ points in the negative x direction and has a magnitude of 22 units. The vector B⃗ points in the positive y direction. partA:Find the magnitude of B⃗ if A⃗ +B⃗ has a magnitude of 37 units. partB: Sketch A⃗ and B⃗ . Draw the vectors

    asked by sintia on February 13, 2017
  99. Calculus

    Find all solutions to tan(theta)=1/sqroot(3). In the interval 0 less then or equal to theta less then or equal to 2pi. Theta=

    asked by Bob on April 9, 2017
  100. physics

    three forces act on a ring. The net force on the ring is zero. One force is at an angle of 30 degrees with a magnitude of n1 Newtons. A second force F acts at an angle theta . The tangent of the angle is tan theta = 3 / 1.73 . If the third force is n3

    asked by frank on January 12, 2012

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