Answer:
Change in Kinetic Energy is
Solution:
As per the question:
Mass of space craft,
Mass of the sun, M =
Radius of the orbit, R =
Radius of smaller orbit around the sun, r =
Now,
We know that the Gravitational Potential Energy is given by:
where
G = Gravitational constant
r = distance of the space craft from the center of the sun
Now,
Initial Gravitational Potential Energy is:
Now,
Final Gravitational Potential Energy is:
Change in the Gravitational Potential Energy equals the change in the kinetic energy of the space craft.
Thus
Answer:
A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected
<u>Answer:
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Earth convection occurs at the mantle layer
<u>Explanation:
</u>
The movement of less dense material above the more dense material is called as convection. The mantle is the layer that lies between the core and the crust of the earth. The mantle is composed of rocks containing silicon, magnesium, oxygen, aluminium, iron and other minerals.
The heat energy of the core is transmitted to the rock in the lower mantle. This makes the rock with less temperature that lies in upper mantle to move down slowly. Now the rocks that are pushed up is eventually cooled and again pushed down by the hotter rock from the lower mantle. This is called as convection in earth’s mantle .
Density = mass divided by volume so if you use that formula Liquid A turns out to be a higher density so it flows slower.