Which of the following statements is not a description of earth's moon? the moon has no atmosphere. the moon has some of the oldest rocks in the solar system. the moon's rotation is the same as its revolution. the moon has the same temperature all around.

Which one of the following research methods can show cause and effect

Which lists the organs in the correct order as food passes from the mouth to anus?

The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)