The loudness of a sound is related amplitude of the vibration that produces the sound.
I hope this helps:)
Answer:
"When face is placed between the concave mirror and its focus, it produces a magnified image. This enlarged image of face is helpful in makeup as even pores of skin are clearly visible."
Answer:
The answer is 41,4 
Explanation:
To understand this problem we need to visualize when block is at the equilibrium position and when the displacement is x=
.
According to Newton's law 
, if we find the force applied to the block, we can find the acceleration since we know the mass of the block.
<u>If you compress a spring by x displacement under F force, the spring's force can be found as:</u>
Therefore 
And to find <u>acceleration</u>:
→ 
→ 
I should think that Yolanda should use litmus paper throughout the reaction as its color will tell when the mixture is neutral and therefore then, when she can stop adding either the hydrochloric acid or the sodium hydroxide or if one or the other needs to be added to make the solution approach neutral. Blue litmus paper stays blue in a neutral solution, but will turn red in an acidic solution.
F=ma
Force is 50N. Acceleration is 25 m/s^2.
50N=m*25 m/s^2
Divide both sides by 25.
mass=2 kg
