a. Ball P
<h3>What is density.</h3>
Density is define as mass per unit volume or the quantity per unit volume, unit area, or unit length.
If
is mass ,
is volume and
is density of ball P
is mass ,
is volume and
is density of ball Q
It is given that ,
=
;
But
= 
Based on above equation we have:

Thus, density of ball P is twice that of Q.
Therefore ,
Ball P will have a greater density than Q
Learn more about density here:brainly.com/question/15164682
#SPJ1
Answer:
3
Explanation:
I just really need points man sorry
Answer:
8.75×10⁻⁴ N. due east
Explanation:
Electric Field: This is defined as the force per unit charge which it exerts at that point. Its direction is the force exerted on a positive charge. The S.I unit of electric field is N/C.
The expression for electric field is given as,
E = F/q
where E = Electric field, F = Force, q = charge.
Making F the subject of the equation,
F = E×q.................... Equation 1
Given: E = 250 N/C, q = 3.5 µC = 3.5×10⁻⁶ C.
Substitute into equation 1
F = 250×3.5×10⁻⁶
F = 875×10⁻⁶
F = 8.75×10⁻⁴ N. due east
Hence the force is 8.75×10⁻⁴ N. due east
All you need to do is plug in 3 for t:h=2+70(3)−16(3^2)
and the final answer is 68.
If you could hear it at all, it would sound very soft.