Answer:
Explanation: see attachment
The free body diagram consists of:
1) Weight force, which is a vertical arrow downward
2) A Normal force that is perpendicular to the ramp.
The Normal force can be decomposed in a vertical component and an horizontal component.
The vertical component, Ny, must equal the weight force, due to equilibrium (rest) condiition =>
Ny = weight = m*g = 5.5kg*9.8m/s^2 = 53.9 N
By geometry the vertical component of the Normal force, Ny is such that
cos (angle) = N / Ny => N = Ny * cos(angle)
=> N = 53.9N * cos(angle)
Now use that equation for each option:
a) 0 ° => N = 53.9N * cos(0) = 53.9N
b) 12° => N = 53.9 * cos(12) = 52.7N
c) 25° => N = 53.9 * cos(25) = 48.9N
d) 45° => N = 53.9 * cos(45) = 38.1N
Photovolatics utilize "Solar" energy to produce electricity.
Silicates
It is classified this way because of the SiO4 tetrahedra within them.
Hope this helps!
-Daisuke
Answer:
Corruption
Explanation:
An abundance of natural resources don't always equate to wealth. Japan for example has few natural resources but is high in human capital.
Countries with gold mines might not be the richest possibly because of corruption, exploitation, and conflict.
This video might be of some help to you: "Why Some Countries Are Poor and Others Rich"
