URGENT! Calc

posted by Girwusup

If vector |a| = 12 cm, |b| = 13 cm, and the angle between them when placed tail to tail is 35°, find a • b to the nearest centimetre
a)
a • b = 57
b)
a • b = 8
c)
a • b = 11
d)
a • b = 24

  1. drwls

    Tail to tail, the dot product is
    12 * 13 cos 35 = 127.78 cm^2
    Round that off as requested. It is an area, not a length.

Respond to this Question

First Name

Your Answer

Similar Questions

  1. phys

    1. A vector has (at minimum) how many parts associated with it?
  2. math

    Find the angle formed when [3, 4] and [−5, 12] are placed tail-to-tail, then find components for the vector projection that results when [3, 4] is projected onto [−5, 12]
  3. 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 …
  4. Biology

    10. In some cats the gene for tail length shows incomplete dominance. Cats with long tails and cats with no tails are homozygous for their respective alleles. Cats with one long tail allele and one no tail allele have short tails. …
  5. precalc

    If is vector a ia 7 units long, the magnitude of vector b is 10 units and the cosine of the angle between the two vectors is -0.3 when they are placed tail-to-tail, what does the inner product of vector a and vector b equal?
  6. Precalc

    Suppose vector a is 3 units long, the magnitude of vector b is 1 units and cos (θ) = -0.3, where θ is the angle between the two vectors when they are placed tail-to-tail. What does the inner product of vector a and vector …
  7. Math

    Can I get some help? 1. If v = (-5, -3), -5 ||v||^2 2. For the following vector v, find ||u||, the unit vector with the same direction angle as v. V = -25j Does u = -j?
  8. VECTOR HELP URGENT

    If vector |a| = 12 cm, |b| = 13 cm, and the angle between them when placed tail to tail is 35°, find |a × b| to the nearest centimetre.
  9. math

    Find the angle formed when [4,4,2] and [4,3,12] are placed tail-to-tail; then find the components of the vector that results when [4, 3, 12] is projected onto [4, 4, 2].
  10. physical science

    two forces of 60 and 80 newton respectively act simultaneously at the point ...sketch and determine their resultant force using tail to tail method and tail to tail method

More Similar Questions