Energy = Power x Time
Energy = 20W x 10s
Energy = 200 joules
Answer:
c
Explanation:
double alit experiment is for wave theory for light
Answer:
It will be the same for both
Explanation:
from this question we have one similarity between these two spheres.
- they are both made from the same material,
The difference between both spheres is that:
- one of the spheres has its diameter to be twice as large as that of the other one.
We are to say the sphere with the greater bulk modulus.
If the material is the same thenthe Bulk modulus is also the same. It is not dependent on the material since it is a constant for that materia
Therefore the correct answer is:
It will be the same for both spheres.
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:
Learn more about momentum here:
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It B as i think it fits in the substrate of the atoms