Crystals, good insulators, hard and brittle,conduct electricity, high melting and boiling points
Acceleration is defined as the rate of change of velocity
Since velocity is a vector, it has both speed and direction.
So, if the object is travelling in a straight line at a constant speed, then it will not be accelerating. Both Magnitude and direction are constant.
However, if the object is travelling in a circle at a constant speed, then it'll be accelerating. An Object going in a circle is constantly changing it's direction, which means velocity is changing, so there is an acceleration caused by a net force.
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The long bones are those that are longer than they are wide.
They are one of five types of bones long, short, flat, irregular and sesamoid.
A great amount of Antarctic animals feed on them. Whales, penguins, fish, birds, etc. They eat phytoplankton.
Urochordata is another invertebrate other than hagfish.