Answer:
g(h) = g ( 1 - 2(h/R) )
<em>*At first order on h/R*</em>
Explanation:
Hi!
We can derive this expression for distances h small compared to the earth's radius R.
In order to do this, we must expand the newton's law of universal gravitation around r=R
Remember that this law is:
In the present case m1 will be the mass of the earth.
Additionally, if we remember Newton's second law for the mass m2 (with m2 constant):
Therefore, we can see that
With a the acceleration due to the earth's mass.
Now, the taylor series is going to be (at first order in h/R):
a(R) is actually the constant acceleration at sea level
and
Therefore:
Consider that the error in this expresion is quadratic in (h/R), and to consider quadratic correctiosn you must expand the taylor series to the next power:
(a) The mechanical advantage of the ramp is determined as 2.5.
(b) The pulley provides additional advantage since it assisted the boy in pulling up the load.
<h3>
What is mechanical advantage?</h3>
The mechanical advantage of an object is the ratio of output force to input force, hence it is called force ratio.
<h3>Mechanical advantage of the ramp</h3>
M.A = Lp/h
where;
- Lp is the length of the inclined plane
- h is height of the inclined plane
M.A = 10/4
M.A = 2.5
Learn more about mechanical advantage here: brainly.com/question/25984831
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A good example that will help to to tell mike what 37°c feels like is body temperature.
<h3>What is room temprrature?</h3>
The average room temperature is typically around 20°C, or 68 degrees Fahrenheit.
<h3>What is body temperature?</h3>
The average body temperature is 98.6 Fahrenheit or 37 degrees Celsius.
Thus, a good example that will help to to tell mike what 37°c feels like is body temperature.
Learn more about body temperature here: brainly.com/question/5295345
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