Answer: object B is negatively charged, object C is positively charged and object D is also positively charged
Explanation: since unlike charges attract and like charges repel, for object A which is positively charged and B to attract B must be negatively charged and then for B which is negatively charged and C to attract C must be positively charged and for C and D to repel they have to be of thesame charge which means D is positive as well.
Answer:

Explanation:
The gravitational force between two corpses is given by the following equation:

Where F is the force, G is the gravitational constant
(
), M and m are the masses of the corpses and d is the distance between them.
So we have that:


Answer:
it's important because it shows how thermal energy transforms or continues to be all around us in everything
Answer:
d
Explanation:
rzp-yyib-oiv
plèase jóin ón góógle mèèt
That would be a frequency of 1.2666... beats per second. This can be phrased as your heart beats at 1.27 Hz.