c is what you want from a fire ?
The magnitude and sign of the charge are 0.8 MC and negative respectively.
To find the answer, we need to know about the electric potential of a point charge.
<h3>What's the mathematical expression of the electric potential of a point charge?</h3>
- Mathematically, the electric potential at a distance 'r' from a point charge 'q' is given as (Kq)/r.
- K is the electrical constant with value 9×10^(-9) in vaccum.
<h3>What will be the magnitude and sign of a charge, if potential is -3.50V at 2mm?</h3>
From the expression of electric potential, charge is
q= (potential ×r)/K
= (-3.5×0.002)/ (9×10^(-9))
= -0.8 mega coulomb.
Thus, we can conclude that the magnitude and sign of the charge are 0.8 MC and negative respectively.
Learn more about the electric potential here:
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Answer
given,
expression of Kinetic energy of rotating body
ω = 34.0 rad/s
Assuming mass of the particle equal to 13 Kg
and perpendicular distance from the particle to the axis is r = 1.25 m
now,
moment of inertia of particle = ?
from the given expression
..............(1)
we know
v = r ω
putting value in equation (1)
I = 20.3125 kg.m²
Answer:
Explanation:
The principle of energy conservation states that energy is transformed from one form to another, in this case, the potential energy will be transformed into kinetic energy. When the Rock is at the highest point, its potential energy is maximum and, as the rock falls, its potential energy decreases as it increases its kinetic energy, the kinetic energy will be maximum at the time that the rock hits the ground, the value of this energy is equal to that of the rock at the time it is located in the top of the mountain.
A. Tree
B. Shapes
C. Grass
D. Mehndi