1. What makes a compound a base?
1 answer:
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Answer:
(a) 380.96 pC
(b) 3.25V
Explanation:
(a) Before immersion,
=
⇒(8.85E-12× 25E-4× 260) ÷(0.0151)
= 380.96 pC
(b) Charge on the plates after immersion can be calculated by,
Q = ΔV×C
= Δ ÷ K
where K is the constant for distilled water
= 260 ÷ 80
= 3.25V
Answer:
I. Speed = 20m/s
II. Velocity = 20m/s due North.
Explanation:
<u>Given the following data;</u>
Distance = 40m
Time = 2secs
To find the speed;
Mathematically, speed is given by the formula;
Substituting into the equation, we have;
<em>Speed = 20m/s.</em>
In physics, we use the same formula for calculating speed and velocity. The only difference is that speed is a scalar quantity and as such has magnitude but no direction while velocity is a vector quantity and as such it has both magnitude and direction.
<em>Therefore, the velocity is 20m/s due North</em>.