A. Ask other people for their opinion. :)
For temperatures to be increased in gas there would have to be heat
Answer:
velocity = displacement / time taken
velocity = 100/5
velocity = 20m/s
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Among the choices provided above the one that best represents the speed of Halley's comet when it is nearest to Earth is letter D which is <span>1 × 10^5 kilometers per hour. </span>
I believe the correct answer is “negative” ?? Not sure but I think