Aresearch submarine has a 30-cm-diameter window that is 8.6 cm thick. the manufacturer says the window can withstand forces up to 1.2×106 n .

what is the submarine's maximum safe depth in sea water? the pressure inside the submarine is maintained at 1.0 atm.
express your answer using two significant figures.

The eel has a certain amount of rotational kinetic energy when spinning at 14 spins per second. if it swam in a straight line instead, about how fast would the eel have to swim to have the same amount of kinetic energy as when it is spinning?

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

Asher cycles 12 miles in 16 hours. what is his speed?