<h2>
Option A is the correct answer.</h2>
Explanation:
For a simple pendulum we have at any position
Total energy = Constant
Kinetic energy + Potential energy = Constant
At maximum displacement of pendulum, velocity is zero, hence kinetic energy is zero.
At maximum displacement the pendulum only have potential energy.
Given that maximum potential energy is 10 J.
That is at any position
Kinetic energy + Potential energy = 10 J
Now we need to find kinetic energy when potential energy is 5 J.
Kinetic energy + 5 J = 10 J
Kinetic energy = 5 J
Option A is the correct answer.
The answer is the last option "Respiration"
Answer:
less energy is needed to heat the house
the roof is a better insulator
Answer:
Explanation:
given that
Radius =0.75m
Cnet=0.13nC
a. Electric field inside the sphere located 0.5m from the center of the sphere.
The electric field located inside the sphere is zero.
b. The electric field located 0.25m beneath the sphere.
Since the radius is 0.75m
Then, the total distance of the electric field from the centre of the circle is 0.75+0.25=1m
Then
E=kq/r2
K=9e9Nm2/C2
q=0.13e-9C
r=1m
Then,
E= 9e9×0.13e-9/1^2
E=1.17N/C. Q.E.D
Answer:
Most of the stars occupy the region in the diagram along the line called the main sequence. During the stage of their lives in which stars are found on the main sequence line, they are fusing hydrogen in their cores.
