Answer:a device for calibrating thermometers at the boiling point of water at a known height above sea level or for estimating height above sea level by finding the temperature at which water boils.
Explanation:
The answer is C) rate of change of momentum. The answer is not initial or final momentum as the start and end points are not changing. On the other hand, the time it takes for the ball to change velocity is. This change relates to the change of momentum. Hope this helped :))
Answer:
Explanation:
The velocidty is defined as the change of position during an interval of given time. Therefore, it is calculated by dividing the distance traveled by the time taken to do it:
Replacing the given values:
Answer:
The mechanical advantage of a machine is the ratio of the load (the resistance overcome by a machine) to the effort (the force applied)
Explanation:
There is no unit for mechanical advantages since the unit for both input and output forces cancel out.
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