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
Answer:
100-0 / 6 = 16.66 m/s
Explanation:
acceleration = vf-vi / time
vf= 100m/s
vi= 0 m/s
t= 6s
Gravity is an attractive force that works to pull objects together. If 2 objects are close the gravitational pull will be stronger
Mass and distance determine gravity. The farther two things are away from each other, the weaker the gravitational forces are, the less mass an object has the less gravitational force it exerts
I think it is inner ear but I’m not for sure
Hope this helped!