Answer:
I'm terrible at explaining so here's a screenshot
- Ripper
Explanation:
X - rays are considered an oxidizing mutagenic agent. X-rays are high energy electrons that can cause damage when exposed under extreme conditions. The best technology that can block it is t using a lightweight type of metal foam. It can take in high energy collisions which also exhibits high forces. it does not only block x-rays but also, neutron radiation and gamma rays.
As we know that Heisenber's uncertainty law gives that
here we know that
now from the above formula we will have
so above is the uncertainty in the speed
B. friction
C. inertia
D. gravity
The correct answer to the question is D). Gravity.
EXPLANATION:
Before coming into any conclusion, first we have to understand centripetal force.
Centripetal force is the force which is required to keep a body moving in a circular path. This force always acts along the radius and towards the centre.
As per the question, the object is moving around the earth. As it is moving in a orbit, it needs a centripetal force which will help the object stick to the orbit.
The centripetal force required is provided to the object by the gravitational force of earth .
Air resistance and friction play no role in imparting centripetal force to the object.
Hence, the correct option of this question is gravity, which is the only force that acts on an object orbiting earth.