Answer is C.
Water-holding capacity is controlled primarily by soil texture, and amount of organic matter. Soils with small particles containing clay have a larger surface are than those larger sand particles, and a large surface area that allows to hold more water.
Assuming that the time needed to cross the ammeter is 1 hour or 3600s, then using coloumb's law,
I x t = F x m / (eq. wt)
Using the given values and formula:
3 x 3600 = 96500 x m / (27/3)
Solving for m,
m = 1.007 g of Al3+
Both moments of inertia solid cylinder and hoop are the same.
We need to know the rotational inertia of a solid cylinder and hoop.
Solid cylinder inertia is given by
I = 1/2 x M x R²
Hoop cylinder inertia is given by
I = 1/2 x M x (R1 + R2)²
where I is a moment of inertia, M is mass, R is the total radius, R1 is central radius and R2 is skin radius.
The total radius can be defined by
R = R1 + R2
hence R² is
R = (R1 + R2)²
Substitute to solid cylinder inertia
I = 1/2 x M x R²
I = 1/2 x M x (R1 + R2)²
Hence, both moments of inertia solid cylinder and hoop are the same.
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The Newton's Laws that BEST describe the situation is Newton's second law of motion.
<h3>
What is Newton's second law of motion?</h3>
Newton's second law of motion states, the force exerted by an object is directly proportional to the product of mass and acceleration of the object.
Also, the law can also be states as force is equal to the rate of change of momentum.
F ∝ Δp
Ft = m(v2 - v1)
The force exerted on the bicyclist by the fence is equal to the change in momentum of the bicyclist. The bicyclist was able to fly over the fence because there is a change in his momentum.
Thus, the Newton's Laws that BEST describe the situation is Newton's second law of motion.
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Answer:
Train will take 156 sec to travel 12km.
