Answer:

Explanation:
We are given that

Distance between the wires,
1mm=
Length of other wire,l=0.3 m
Length of one wire is infinite.
We have to find the magnitude of force between the two wires.
We know that magnetic force

Where 


When the wires carrying equal current in opposite direction then the force between two wires repel to each other.
Since we're dealing with radial acceleration around a circle, I used the radial acceleration equation a=v²/r. At the top of the hill, the force upward exerted by the hill is less than the weight of the sled. if v is large enough the term (g-v²/r) will become 0 and the sled will fly off the ground as it reaches the peak. Let me know if I can clarify any of my work.
Answer: no definite shape (takes the shape of its container)
no definite volume.
particles move in random motion with little or no attraction to each other.
highly compressible.
Explanation:
Gases have three characteristic properties: (1) they are easy to compress, (2) they expand to fill their containers, and (3) they occupy far more space than the liquids or solids from which they form.
D.
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