An object is in motion if its distance relative to another object is changing. To tell if an object is moving, you use a reference point. If an object's distance from another object [reference point] is changing. A place or object used for comparison to determine if something is in motion.
10 degrees, because 0 degrees will receive the most sunlight, and 10 degrees is closest to 0 degrees.
Answer:
v = 19.2 m/s
Explanation:
In order to find the speed of the string you use the following formula:
(1)
f: frequency of the string = 80.0Hz
v: speed of the wave = ?
L: length of the string = 12.0cm = 0.12m
The length of the string coincides with the wavelength of the wave for the fundamental mode.
Then, you solve for v in the equation (1), and replace the values of the other parameters:

The speed of the wave is 19.2 m/s
The correct answer is <span>outboard. This is the most basic type of engine seen everywhere that is attached to regular boats so that you can move them with an engine instead of by rowing. The engine contains all that it needs in the single box and it just gets attached to the boat.</span>