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Osmosis is the movement of water across a semi-permeable membrane, down the concentration gradient. This means that if there is more water on one side of a membrane, it will move to the other side until b...

First, we must calculate the amount of time spent using the whisk in one week:4 x 7 = 28 hours a weekNext we calculate the power used; as the whisk has two motors, the average power used by the whole whis...

step 1 ; expand the brackets5x - 15 = 4y - 3xystep 2 ; group together x values on one side5x + 3xy = 4y + 15step 3 ; single out xx (5+3y) = 4y +15step 4 ; make x the subjectx = (4y + 15) / (5+3y)

The Demographic Transition Model is one of the main ways we can easily understand how a population will change demographically as countries go through economic and social change. It was originally develop...

2 general rules: 1) if the verb ends in "-ir" or "-er", remove the "r" and add "-iendo". 2) if the verb ends in "-ar", remove the "r" and add &q...