The diving bell contains trapped air at the same pressure as the water outside. At the surface, air
pressure is 100 kPa. As the bell descends, the pressure
on it increases by 100 kPa for every 10 m of depth.

A) What is the pressure on the diver at depths of 0m,10m,20m and 30m
B) At the surface, the bell holds 6m^3 of air. If the bell is lowered to a depth of 20m, and no more air is pumped into it, what will be the volume of the trapped air? (assume no change in temperature)

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? your