Answer: 1.653 × 10⁴ N/C
Explanation: Given Q= 3.6× 10^-6
we assume there is a charge q placed at a distance r = 1.4m exerting an electric field strength towards Q.
Hence
F = kQq/r²
K= 9× 10^9
Now recall that E = F/q (electric field due to that charge)
E =( kQq/r²)/q
E = kQ/r² substituting the values gave the answer above.
Answer:
Electrons are negatively charged, and so are attracted to the positive end of a battery and repelled by the negative end. So when the battery is hooked up to something that lets the electrons flow through it, they flow from negative to positive.
Explanation:
Newton's First Law states that an object would remain at rest or in uniform motion in a straight line unless an unbalanced force acts upon it. So the speed would be the one that remains constant.
By a positive test charge.
<em>1800 sec = 30 min</em>
<em>Hi there ! </em>
<em>18km = 18×1000m = 18000 m</em>
<em />
<em>1 s ............... 10m</em>
<em>x s ...............18000m</em>
<em>x = 1×18000/10 = 1800 sec = 30 min</em>
<em>Good luck !</em>