<span>The zero reference position should be the position the system has the least potential energy. As an object falls, its potential energy is converted into kinetic energy.
Gravity's ability to do work (potential energy) reaches zero when it hits the ground and stops falling, hence the ground is the most common zero reference position.</span>
D. because Land does reach higher temperatures then water and Land heats more rapidly
To solve this problem it is necessary to apply the concepts related to Young's Module, and find the radius that gives the ratio between the two given materials. Young's module can be defined as,
Where,
F= Force
L = Initial Length
A = Cross-sectional Area
Change in Length
Re-arrange the equation to find the change in Length we have,
If both the Force, as the Area and the initial length are considered constant, we can realize directly that the change in length is inversely proportional to Young's Module, therefore
Applying this concept to that of the two materials (Brass and Tungsten),
If the force caused 
to be stretched, the tungsten will stretch 0.25 of that ratio
Therefore the amount of stretch of Tungsten is 7.5*10^{-7}m
It important to assess flexibility both before and during a workout regimen because to assess flexibility progress.
<h3>What is a flexibility exercise?</h3>
Flexibility exercises, as the name implies, help to increase the stretch of the muscles, improving the range of motion. More flexibility is also important to help prevent possible post-workout soreness.
In this case we have that the reason to continue doing stretching before and during the exercises is about to assess flexibility progress.
See more about flexibility at brainly.com/question/15395713
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I’m trying to get my points up I have the same question
