The density of mercury is 13.6 g/cm3 calculate the mass of 1 cm3 of mercury

Acar travels along a highway with a velocity of 24 m/s, west. the car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. what is the magnitude of the average acceleration of the car during the four-second interval?

The substances that are necessary for producing of certain hormones and that store and transport vitamins

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.