Ice wedging, pressure release, plant root growth, and abrasion can<span> all </span>break<span> apart</span>rocks<span>. ... When plants grow in cracks in a </span>rock<span>, their roots </span>can<span> widen the cracks and force the </span>rock<span> apart. Rainwater fills small cracks in a </span>rock<span>. As the </span>water<span> freezes, it expands, widening the cracks and splitting apart the </span>rock<span>.</span>
B) a rock being tossed high into the air
You're going to use the constant acceleration motion equation for velocity and displacement:
(V)final² = (V)initial²+2a(dx)
Given:
a=0.500m/s²
dx=6.32 m
(V)intial=0m
(V)final= UNKNOWN
(V)final= 2.51396m/s
We have that the Average Force is given
Avg F=2.0488N
From the question we are told
Masses=
0.10
0.25
0.40
0.50
0.60
0.75
1
1.5
2
Accelerations
9.5
4.2
2.3
2.1
1.7
1.3
1.1
0.7
0.5
Generally the equation for the Mean is mathematically given as
For Mass
For Acceleration
Since Average Acceleration and mass are found above
Therefore
The Average Force is given as
Generally the equation for the Average Force is mathematically given as
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Answer:
2.25 %
Explanation:
65-95-99.7 is a rule to remember the precentages that lies around the mean.
at the range of mean () plus or minus one standard deviation (),
at the range of mean plus or minus two standard deviation,
at the range of mean plus or minus three standard deviation,
So, note that they are asking about the probability that it is greater than 0.32, that is the mean (0.3) plus two times the standard deviation (0.1) ()
So we know that the 95.5% is between and , hence approximately the 4.5% (100%-95.5%) is greater than 0.32 or less than 0.28. But half (4.5%/2=2.25%) is greater than 0.32 and the other half is less than 0.28.
So