The density of oil in a circular oil slick on the surface of the ocean at a distance of r meters from the center of the slick is given by δ(r)=501+r2 kilograms per square meter. Find the exact value of the mass of the oil slick if the slick extends from r=0 to r=11 meters.

Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents

If the new moon happens on january 15th, what shape will it be on february 6th?