Mega drives a car from Town A to the Town B with velocity of 30 km/h. At the same time, Anton go from Town B to the Town A with velocity of 60 km/h. If the space between Town A and Town B is 140 km, count the space when they meet each other! Please explain

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)

Explain what will happen if decomposers were apsent from a forest ecoysystem.

Debris produced by mining is called