Answer:
<h2>10,000 kg</h2>Explanation:
The mass of the train can be found by using the formula
k is the kinetic energy
v is the velocity
From the question we have
We have the final answer as
<h3>10,000 kg</h3>Hope this helps you
A tornado passes in front of a building, causing the pressure to drop there by 25% in 1 second. Part A If a door on the side of
1 answer:
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Answer:
0.256 hours
Explanation:
<u>Vectors in the plane </u>
We know Office A is walking at 5 mph directly south. Let be its distance. In t hours he has walked
Office B is walking at 6 mph directly west. In t hours his distance is
Since both directions are 90 degrees apart, the distance between them is the hypotenuse of a triangle which sides are the distances of each office
This distance is known to be 2 miles, so
t is approximately 15 minutes
By using Ohm's law, we can find what should be the resistance of the wire, R:
Then, let's find the cross-sectional area of the wire. Its radius is half the diameter,
So the area is
And by using the resistivity of the Aluminum,
, we can use the relationship between resistance R and resistivity:
to find L, the length of the wire:
Then, let's find the cross-sectional area of the wire. Its radius is half the diameter,
So the area is
And by using the resistivity of the Aluminum,
to find L, the length of the wire: