Answer: Option (C) is the correct answer.
Explanation:
As we know that metals are able to conduct electricity so, when a negatively charges rod is kept closer to the left sphere then electrons will enter the sphere.
Since, like charges repel each other. Hence, some of the negative changes from the rod will repel the negative charges of left sphere.
As both left and right spheres are touching each other so, the electrons will move towards the right sphere. As a result, there will be too many electrons (negative charge) present on the right sphere and very less electrons present in the left sphere.
Thus, we can conclude that the statement right sphere is negatively charged, another is charged positively, is true.
In the object that has, the least inertia.
Answer:
28.82 minutes
Explanation:
This problem is an example of time dilatation by acceleration. The formula is:
is the time measured by the observer on a fixed position (in this case in the fixed planet), 
is the time measured by the person moving away from the fixed observer (the one on an interplanetary express bus), 
is the speed of light and 
the velocity of the observer that is moving away (the velocity of the ship).
Answer:
the fraction of the total energy (Etot) of the cart-spring system is elastic potential energy (Us) is 0.25
the fraction is kinetic energy (K) when the cart is at position x=A/2 is 0.75
Explanation:
the solution is in the attached Word file
<span>The tides on earth are caused mainly by earths gravitational interactions with the sun and the moon.</span>
