Which of the following is not a diatomic Element?
a. Oxygen
b. Nitrogen
c. Iodine
d. Carbon

this is poiselle's equation from fluid mechanic in physics. mech eng

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

the rearrangement of particles in a physical change. hope this

it was given as a lesson and guide for prayer.