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Aswer:
False, the values of the distance traveled and the displacement only coincide when the trayectorie is a straight line. Otherwise, the distance will always be greater than the offset.
Although these terms are used synonymously in other cases, they are totally different. Since the distance that a mobile travels is the equivalent of the length of its trajectory. Whereas, the displacement will be a vector magnitude.
<u>xXCherryCakeXx</u>.
Answer:
Efficiency can be increase by using rollers in conjunction with the inclined plane. Wedge. The wedge is an adaptation of the inclined plane. It can be used to raise a heavy load over a short distance or to split a log
Answer: a) 31.86 *10^-12 C=31.86 pC; b) 18 V
Explanation: In order to explain this problem we have to consider the expression a parallel plates capacitor,which is given by:
C=Q/V where C is equal to C=εo*A/d where A and D are the area and the separation between the plates.
also we have
Q=C*V=ε(o*A/d)*V=(8.85*10^-12*0.02*0.02/1*10^-3)*9=31.86*10^-12 C=31.86pC
Then if the plates apart to a new spacing of 2.0 mm the new capacitance is equal
Cnew=εo*A/2*d so Cnew =Cinitial/2
then Cnew =Q/Vnew (Q is constant after disconnection to the battery)
Finally Vnew= Q/(Cinitial/2)= 2*(Q/Cinitial)= 2*Vinitial= 2*9=18V
