What makes a submarine dive? pumping air into its tanks to increase its density adding water to its tanks to increase its density pumping air into its tanks to decrease its density adding water to its tanks to decrease its density

This question is worth 54 points ! rock falls from a ledge to the ground what energy conversion occurs during this process a potential to kinetic b kinetic to potential c thermal to mechanical d chemical to mechanical

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward