Answer:
Buoyant force which is equal in magnitude to the fish's weight
Explanation:
A fish floating motionless below the surface of a lake, is an equilibrium position with the water.
Hence, upward force must be equal to downward force.
The downward force is due to fish's weight while the buoyant force is the upward force due to force of the water.
Answer : 16 units would be it
Answer:
D) diffraction
Explanation:
Corona is an optical phenomenon produced by the diffraction of sunlight or moonlight, as light moves through water droplets in the atmosphere.
This phenomenon produces one or more diffuse concentric rings of light around the Sun or Moon, usually seen as colored circles.
Therefore, the explanation for these phenomena of colored concentric circles, sometimes seen with the Sun or the Moon involves diffraction.
Answer:
How far horizontally from point A does the ball hit the floor d= 5 m
Explanation:
By law of conservation of energy we can say that
final Kinetic energy kf+ final potential energy Uf= initial Kinetic energy ki+ initial potential energy Ui
We know that the ball has Uf, the ball at the bottom and no Ki ,the ball at initial state
therefore,
Kf= Ui
therefore,
MOI for Solid ball =
=
Now substituting the values to get value of V
V= 7.48 m/s
now to calculate How far horizontally from point A does the ball hit the floor
h=
2=
t=0.6385 sec
now horizontal distance d= vt = 0.6385×7.48= 5.00 m