Answer:
Option A
Explanation:
In this experiment, when balloon is rubbed on the chair electrons are transferred from the hair to the surface of the balloon thereby making balloon negatively charged and hair positively charged. When two negatively charged balloon are brought close to each other, they repel while when balloon is brought closer to the hair, they attract each other
Hence, option A is correct
Answer:
I think sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. If you are sitting in a space ship and another space ship explodes, you would hear nothing.
Explanation:
This relates to newtons law of motion because that golf ball hit so hard that it went the same speed. because its force the more u like hit it your gonna get that force.
hope this makes sense
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homepage 10
Answer:
Current in the battery will be 11.7 A
Explanation:
We have given that the there is parallel circuit with three different branches.
Current in each branch is 
, 
,
We have to find the current I in the battery
It is known that in parallel circuit current is sum of current in each branches
So current in the battery will be equal to
Therefore current in the battery will be 11.7 A
Answer is C is the correct answer
