Sirius, the brightest star, is 8.8 light-years from earth. that means
a) sirius is not part of the milky way.
b) sirius is closer to earth than the sun.
c) we see sirius as it looked 8.8 years ago.
d) it would take us 8.8 years to reach sirius.

For each of the following mixtures decide if filtering would be suitable to separate the substances. explain your answers. oil in water sugar in water sand in water chalk in water tea leaves in a cup of tea

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.