Given two vectors A = 4.00i + 7.00j and B = 5.00i -2.00j a. Find the magnitude of each vector.
b. Find the vector difference C= A – B, give its magnitude and direction.
c. Draw the vector A, B and C.
d. Find the scalar product of A. B
e. Find the vector product D= A x B, draw D and give its magnitude.

You are sitting on the beach and wondering about the properties of mechanical waves. describe them in terms of ocean waves.

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball