a) Making h as the shorter cathetus, we have,

We proceed to calculate the work done by gravity


b) It's necessary to calculate the Kinetic Energy, we use the equation of KE,


c) By work energy theorem

d) we calculate net work through the law of conservation



Answer: D. 1
Explanation:
Choice 1 could represent a neutral atom of oxygen
Self-registering thermometers
are used for temperature or depth profile. It registers the maximum and minimum
temperature of the substance occurring in the interval of time between two
consecutive settings of the instrument.
The right answer is "<span>B. durability and flexibility".</span>
The answer is:
C
From the yolk to the white
Explanation:
The core of Earth is the hottest, so that is where the heat comes from. It moves outwards to the mantle.