If a tank contains water 4 m deep, what is the pressure at the bottom of the tank? (neglect the atmospheric pressure.)

Which notation is used to represent an alpha particle? a. b. c. d.

Arope has one end tied to a vertical support. you hold the other end so that the rope is horizontal. if you move the end of the rope back and forth with a frequency of 4 hz, the transverse wave you produce has a wavelength of 0.5 m. what is the speed of the wave in the rope?

Consider an air-filled charged capacitor. how can its capacitance be increased?