I need help ASAP. A 1.35 kg ball is dropped off a tall building. The air density is 1.20 kg/m3 and the radius of the ball is 30.0 cm.
a. Determine the Drag Force when the ball reaches terminal velocity
b. What is the ball’s terminal velocity?

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90