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An object will be stable if the centre of mass, the point at which all of the mass of the object is concentrated, is lower to the ground. It will also be stable if there is a wide base. Objects with low c...

A substance will float on water if it has a lower density than water. Therefore, ice floats on water simply because it is less dense than water.

Water is unlike other substances in terms of ...

An easy way to learn the verbs which take Etre when forming the perfect tense is by using Mrs Van Der Tramp. If you learn every verb on this list, you will know whenever they pop up that you must use Etre...

Context: Curley's wife is the only woman on the ranch, she is alone in a mans world. Immediately this marks her out to us, as contextually she would have no power or stat...

Acceleration is defined as

A = change in velocity / time,

For this example

A = (34-25 )/ 6 = 9/6 = 1.5 m/s^2