Wind turbines take the kinetic energy from the wind and convert it into mechanical energy which can be used for different stuff such as a generator which converts it into electrical energy.
Have a wonderful day!
Answer:
Rest and motion are the relative terms because they depend on the observer's frame of reference. So if two different observers are not at rest with respect to each other, then they too get different results when they observe the motion or rest of a body.
The answer is, "an unbalance force has acted on the vehicle". The vehicle will not change its states, unless otherwise there is a force acted upon on the object, that compel it to move in its original position, or to cause to change its direction of motion. This unbalance force cause the vehicle to move in the direction of the applied force.
Answer:
Choice d. Approximately 
of the volume of this iceberg would be submerged.
Explanation:
Let 
denote the total volume of this iceberg. Let 
denote the volume of the portion that is under the liquid.
The mass of that iceberg would be 
. Let 
denote the gravitational field strength (
near the surface of the earth.) The weight of that iceberg would be: 
.
If the iceberg is going to be lifted out of the sea, it would take water with volume to fill the space that the iceberg has previously taken. The mass of that much sea water would be 
.
Archimedes' Principle suggests that the weight of that much water will be exactly equal to the buoyancy on the iceberg. By Archimedes' Principle:
.
The buoyancy on the iceberg should balance the weight of this iceberg. In other words:
.
Rearrange this equation to find the ratio between and :
.
In other words, of the volume of this iceberg would have been submerged for buoyancy to balance the weight of this iceberg.
