As the surface given is a smooth surface, we can use specular reflection. According to the law of specular reflection, the angle of incidence equals the angle of reflection, so it will also be 40°. Answer is A.
Answer:
the final speed of the rain is 541 m/s.
Explanation:
Given;
acceleration due to gravity, g = 9.81 m/s²
height of fall of the rain, h = 9,000 m
time of the rain fall, t = 1.5 minutes = 90 s
Determine the initial velocity of the rain, as follows;
The final speed of the rain is calculated as;
Therefore, the final speed of the rain is 541 m/s.
Law of conservation of momentum
67*x=4.2*5.6
Answer:
Both of them.
Explanation:
By low or high spin complex we refer to all spins in the system (complex) aligned either up or down, which is normally simulated in Ising model. It means that all spins aligned, either up or down, like this:
∧ ∧∧ ∧∧ ∧∧ ∧
║║║║║║║║
(Those are arrows pointing up) are a stable configuration (lowest energy), as it actually occurs in ferromagnetic materials.
Answer:
0 m/s^2
Explanation:
Acceleration is the change in velocity / time
=> In this case there isn't any change in velocity
=> It is = to 0.
