Answer:
first one :
the object will stay at the same speed and direction unless it is acted upon by an internal unbalanced force.
We need a system to use those air vibrations to push against the surface of the inner ear fluid.
Answer:
H = 109.14 cm
Explanation:
given,
Assume ,
Total energy be equal to 1 unit
Balance of energy after first collision = 0.78 x 1 unit
= 0.78 unit
Balance after second collision = 0.78 ^2 unit
= 0.6084 unit
Balance after third collision = 0.78 ^3 unit
= 0.475 unit
height achieved by the third collision will be equal to energy remained
H be the height achieved after 3 collision
0.475 ( m g h) = m g H
H = 0.475 x h
H = 0.475 x 2.3 m
H = 1.0914 m
H = 109.14 cm
I think he answer choice to go with here would be <span>C). The greater the mass object, the greater the inertia it has. </span><span>
~hope this helps!</span>