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It looks like an extremely bright star, though it isn't twinkling and is moving across the sky very fast.
Because the earth is rotating thus creating the illusion that the stars are moving across the sky.
The prepositional phrase is "...across the sky." "Across" is the preposition, and "the sky" is the object of the preposition.
The comet is moving quickly across the sky.
because no u
Velocity is Speed in a given direction. Moving at constant velocity is equivalent to say moving with a constant speed in a specified direction. So, moving at constant velocity implicitly means moving with constant speed.
static
A car moving at constant speed in a straight line is also moving at constant velocity.
No. A glider that is moving at a constant speed and in a constant direction is at a constant velocity. In other words it is not accelerating. Therefore, all forces on it must be balanced.
determine if the momentum of an object moving in a circular path at constant speed is constant.
a "body" "moving body" an "object" is moving with constant velocity. [OR] a "body" is moving with constant velocity.
determine if the momentum of an object moving in a circular path at constant speed is constant.
You determine it by were is it moving and when a bright streek is moving
It looks like an extremely bright star, though it isn't twinkling and is moving across the sky very fast.
None, as "not moving at all" is just moving at a constant speed of zero. Special relativity shows that there is nothing unique or different about zero speed. It is just a value of constant speed.
Only if the direction is constant and the speed is constant.
Yes. If an object is moving at a constant speed the average speed and the constant speed are the same.