Answer:
(a) 1.215 x 10^-13 J
(b) n = 7.6 x 10^5
Explanation:
distance, r = 8.3 x 10^-10 m
Force, F = 192.9 x 10^-9 N
Let the charge is q.
(a) According to the Coulomb's law
q = 1.215 x 10^-13 C
(b) Let n number of electrons are missing.
n = 7.6 x 10^5
C.energy
The law of conservation of energy says that energy can neither be created nor destroyed.
In energy point of view, the larger stone had more potential energy before dropping. impacting the water, the larger one, having more kinetic energy which changed from potential energy, tranfered energy to the water and formed wave. the amplitude of the wave indicate the energy of the wave. more energy more amplitude.
Answer:c
Explanation:
If the Force of gravity suddenly stops acting on Planets then Planets would continue to move straight in the initial direction.
Gravity constantly acts on Planets to change their trajectory each instant thus in absence of it if a planet is moving in a circular path then it would follow the path of the tangent to the circular path as gravity force is absent to change its trajectory.
Answer:
0.026
Explanation:
The force of friction acts in the direction perpendicular to the norm force of the surface on which the object rests, induced by gravity. The magnitude of the friction force is
(Friction) = (mass) x (gravitational acceleration g) x (coefficient of friction)
from which the coefficient of friction can be determined:
(coefficient of friction) = (Friction) / ((mass)x(g)) = 3 N / (12 kg * 9.8 m/s^2) = 0.026
