An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in seawater. how deep is the water directly below the vessel if the time delay of the echo to the ocean floor and back is 7 s? answer in units of m 039 10.0 points an example of stored chemical energy is:

a.  x=5355m   b. food

Explanation:

A wave is a disturbance wic travels through a medium, it transfers energy without the displacement of the medium itself.

the problem can be solved with this formula v

v=2x/t

v=speed of the ultrasonic wave in seawater

x=te distance between the seawater surface and the seawater bed

t=time it takes to travel to and fro te seawater bed to the surface

v= 1530 m/s,  t=7 s    , x=?

1530=2x/7

1530*7=2x

x=5355m

b. An example of stored h energy is food, petroleum etc.Chemical energy are Energy stored in the bonds of chemical compounds. Chemical energy may be released during a chemical reaction, often in the form of heat; called exothermic.

Reactions that require an input of heat to proceed may store some of that energy as chemical energy in newly formed bonds. we eat food so that we can h enough energy to carry out our day to day task.

atomic = no of protons.

mass number-atomic number = neutron number