If an atom has 35 protons in the nucleus how many electrons will it have orbiting the nucleus ?

false it never decreases, it increases or remain the same.

the speed indicated on your car's speedometer.  

it tells nothing about what your speed was 1 second, 1 minute, or 1 hour ago, or what speed you've been averaging for the past 3 minutes.   it only tells you what your speed is right now.

the answer is a becuase the piano moving up is is going in a positive way whe it stops the forces are equal then when it falls the forces are negative

the first practical realisation of the metric system came in 1799, during the french revolution, when the existing system of measures, which had become impractical for trade, was replaced by a decimal system based on the kilogram and the metre.