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
I think it's recreational activities, method of transportation, and choice of occupation. So all of the above. Why? So lets start with recreational activities. Earth's physical form depends of if people want to go fishing, hiking, hiking, etc. Method of transportation. We need to have smooth ground to bike or drive on. A highway isn't going to be in the middle of the mountain. We need to have a good solid surface. Choice of occupation. Earth has a physical feature of like I said, mountains, plains, oceans, etc. We want to live in a place that has good resources, and good weather. All of these things depend on physical features of Earth.
This is true and it is the worlds 4th fastest growing nation
Answer:
-kinetic energy transformed to mechanical energy
Explanation:-When the blades are moved or spins (rotational motion) some part of the kinetic energy of the wind is transformed into rotational kinetic energy of the the blades, which makes an axis rotate generating the electricity.
-Kinetic energy is mechanical energy (mechanical energy is basically kinetic energy and gravitational potential energy).
-Therefore, the kinetic energy of the wind is transformed into kinetic energy of the windmill (mechanical energy) and it is then transformed into electrical energy.
Hope this helps!
