Answer:
lasing threshold condition is 32.78 cm
Explanation:
given data
uncoated facets R = 0.32
a = 10 cm
length L = 500 um = m
to find out
lasing threshold condition
solution
we know lasing threshold condition formula that is
lasing threshold = a - ln ..........1
put here all value in equation 1 we get
lasing threshold = a - ln
lasing threshold = 10 - ln
lasing threshold = 32.78
so lasing threshold condition is 32.78 cm
All we have to do is subtract
sooooo
185 - 150 = 35
so the mass of the liquid is 35g
:)
:P
:D
Answer:
Looks like A but I'm not sure.
Explanation:
dont take my word for it I might be wrong
Answer:
The heavier one will have twice the kinetic energy of the lighter one.
Explanation:
For the objects of mass m and 2 m , kinetic energy is
0.5 m v² and 0.5 (2 m) v² respectively. So kinetic energy of the mass 2 m is Twice that of the object of mass m, since their final velocities are equal.
When an object is dropped from the top of a building ( or from some height), its acceleration is equal to the acceleration due to gravity and has a zero initial velocity. On reaching the ground, the final velocity attained by the object depends only on the gravity and the height of fall, as given by the equation v = √2 g h.
So final velocity is independent of the mass of the object. But kinetic energy is 0.5 m v² , which shows that it depends on the mass of the object and square of the velocity.