Asubmarine has a "crush depth" (that is, the depth at which water pressure
will crush the submarine) of 250 m. what is the approximate pressure (water
plus atmospheric) at this depth? (recall that the density of seawater is 1025
kg/m3 g = 9.81 m/s2, and 1 kg/(m. s) = 1 pa = 9.8692 x 10-6 atm.)

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.