Answer:
14.6
Explanation:
You need the equation 
both legs can be "a" or "b" the hypotenuse is "c"
insert what you know in this equation then solve for the unknown.

now to cancel out the square you take the square root of both sides giving you: 14.6
Answer:
<em>D. 20 N</em>
Explanation:
<em>Force</em><em> </em><em>=</em><em> </em><em>mass(</em><em>m)</em><em> </em><em>×</em><em> </em><em>acceleration</em><em> due</em><em> to</em><em> </em><em>gravity (</em><em>g)</em>
<em>Force </em><em>=</em><em> </em><em>2</em><em>k</em><em>g</em><em> </em><em>×</em><em> </em><em>1</em><em>0</em><em>m</em><em>/</em><em>s²</em>
<em>Force</em><em> </em><em>=</em><em> </em><em>2</em><em>0</em><em>N</em>
Answer:
The force of gravity is the gravitational constant multiplied by the mass of the sun times the mass of the person divided by the radius of the sun squared. We can equate these two. The mass of the person cancels.
<span>A. No sound is heard
A*sin(wt)+(-A)*sin(wt)=0 - no sound
</span>
Picture? I may be able to answer if you have a chart or some kind of graph as a referral to the question