The precision (relative error) of the centripetal force is 1%.
<h3>Relative error</h3>
This is the error in measurement of a variable obtained in comparison with other variables.
F = mv²/r
where;
- F is centripetal force
- m is mass
- v is velocity
- r is radius
F/m = v²/r
F/m = (0.01v)²/(0.01r)
F/m = 0.01v²/r
F/m = 1%(v²/r)
Thus, the precision (relative error) of the centripetal force is 1%.
Learn more about relative error here: brainly.com/question/13370015
Answer:
d_{b} = 2 d_{a}
Explanation:
The electrical resistance for a cylindrical wire is described by the expression
R = ρ L / A
The area of a circle is
A = π r²
r = d / 2
A = π d²/4
We substitute
R = ρ L 4 /π d²
Let's apply this expression to our case, they indicate that the resistance of wire A is 4 times the resistance of wire B
= 4 R_{b}
We substitute
ρ 4/π 
² = 4 (ρ 4/π d_{b}²)
1 / d_{a}² = 4 / d_{b}²
d_{a} = d_{b} / 2
Answer:
Open circuit
Explanation:
An open circuit is simply an electrical circuit that is not complete. In such a circuit, there is a gap and this will not allow the electric current to pass through.
Despite all the elements being complete in the circuit, an open circuit will halt the flow of electric current and will not do deliver the necessary energy it is supposed to.
In such a circuit, the wires are cut of and not connected properly.
The reverse is a closed circuit.
Answer:
The Autocratic system of governance
Explanation:
<em>Thi</em><em>s</em><em> is</em><em> </em><em>b</em><em>ecause</em><em>,</em><em>in </em><em>Autocratic</em><em> </em><em>sy</em><em>stem</em><em> </em><em>of</em><em> </em><em>gover</em><em>nance</em><em> </em><em>decis</em><em>ion</em><em> </em><em>maki</em><em>ng</em><em> </em><em>is</em><em> </em><em>don</em><em>e</em><em> </em><em>by</em><em> </em><em>onl</em><em>y</em><em> </em><em>indi</em><em>vidual</em><em>.</em><em> </em><em>And</em><em> </em><em>his</em><em>/</em><em>her</em><em> </em><em>dec</em><em>ision</em><em> </em><em>is</em><em> </em><em>fina</em><em>l</em><em>.</em>
(B is the answer!!
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