The final velocity is 14.4 m/s
Explanation:
We can solve this problem by using the law of conservation of momentum. In fact, in absence of external forces, the total momentum of the two girls must be conserved before and after the collision.
Therefore we can write:
where:
is the mass of Anna
is the initial velocity of Anna
is the mass Sandra
is the initial velocity of Sandra
is the final combined velocity of the two girls
By re-arranging the equation and solving for v, we find the final velocity of the two girls:
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Here's a explanation!
Let's solve your equation step-by-step.
Step 1: Multiply both sides by x.
(Divide both sides by 4).
Take the root.
ANSWER!
Hopefully, this helps you!!
As he predicted there would be more discoveries so he left spaces for them. Hope it helps !
Answer:
C. relatively large size
Explanation:
Earth's internal heat flow to the surface is 80% due to mantle convection while the remaining heat mostly originates in the Earth's crust and about 1% due to volcanic activity, earthquakes, and mountain building.
The earth's internal heat- stresses between the lithosphere and the upper mantle are responsible
for geological processes. These stresses are the results of motions in the upper mantle stemming from convection that push the lithosphere in different directions.
Larger planets cool slower than small planets.