No se la verdad pero se ve muy discípulo
As we know that electric field at any point caused due to a point charge given by, kQ/r^2
Where, k is dielectric constant of medium, Q is the point charge and r is the distance between the point charge and point where electric field is to be measured.
Let us assume a charge of q is placed at x=+20cm to make electric field at
x=+10cm zero.
Total electric field at x=+10cm can be shown by equation,
(k X 2.20 X 10^-12)/(10-0)^2 + (k X -4.80 X 10^-12)/(10-(-11))^2 + (k X
q)/(10-20)^2 = 0
=> 2.20 X 10^-14 - 1.09 X 10^-14 + q X 10^-2 = 0
=> q = 1.09 X 10^-12 - 2.20 X 10^-12
=> q = -1.1 X 10^-12 Coulombs or -1.1 pC
Aerobic dance<span> has its foundation in </span>dance<span>-inspired movements. It is a cardiovascular workout set to music in a group </span>exercise<span> setting. You do not have to memorize </span>dance<span> moves, as the classes are taught by instructors who verbally tell and visually show the </span>choreography<span>.</span>
2.4s
Explanation:
Given parameters:
Impulse = 12Ns
Force = 5N
Unknown:
Time taken for the force to act = ?
Solution:
Impulse is the change in momentum of a body when an external force acts on body for a period of time.
Impulse = force x time
Since the unknown in this problem is time, we make it the subject of the formula;
Time =
Inputting the parameters;
Time taken for force to act = = 2.4s
Learn more:
Momentum brainly.com/question/2990238
#learnwithBrainly
By receiving an electron from another atom