A tank with a flat bottom is filled with water to a height of 7.5 meters. Whats the pressure at any point at the bottom of the tank?

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Can anybody me with this? ? (picture included.)

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates