Aresearch vessel is mapping the bottom of the ocean using sonar. it emits a short sound pulse called "ping" downward. the frequency of the sound is 5600 hz. in water sound propagates at a speed of 1474 m/s. the sound pulse is then reflected back from the bottom of the ocean and it is detected by the vessel 8.88 s after it was emitted. how deep is the ocean just below the vessel?

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Awalk up the phase change graph worksheet

The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.