Answer:
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.
Answer:
a circuit that is a blend of series paths and parallel paths. See Figure for a visual explanation. Most circuits are of this variety. Don't be afraid to tackle these circuits as far as the math goes.
The Electromagnetic ave that is about the size of humans is : A typical micro waves have around 14 inches ( 1.1 meter) in height.
This is very similar to the height of human right before we hit puberty (around 9 - 10 years old)
The distance between two consecutive points in a wave is called the wavelength.
