In what way does ocean water move globally? a. along cold-water currents from the poles to the equator b. from the cold western hemisphere to the warm eastern hemisphere c. from high-pressure systems to low-pressure systems d. along cold-water currents from the equator to the poles

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.