The gravitational force exerted by an object is given by f 5 mg where f is the force in newtons, m is the mass in kilograms, and g is the acceleration due to gravity, 9.81 m/s². calculate the force exerted per unit of area by a column of mercury (density 5 13.59 g/cm³) that is 76.0 cm high. how high would a column of water (density 5 1.00 g/cm³) have to be to exert the same force?

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?

What happens when you slowly pulled the carboard?