Answer:
mixtures that appear to be the same throughout are homogenous mixtures
Answer:
I think D. Since a vacuum iswhere gravity is concentrated. not sure
The top box is cell and I’ll look at the others
The apparent velocity is B) 48 m/s north
Explanation:
Here we have a problem of relativity of velocities.
In fact, the train is travelling north at a speed of
where this velocity is measured with respect to the ground.
At the same time, a passenger on the train is walking towards the rear (so, south) at a velocity of
where this velocity is measured with respect to the train, which is in motion in the opposite direction.
Therefore, the apparent velocity of the passenger with respect to an observer standing on the ground is:
And the direction is north, since this number is positive.
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Answer:
The answer is 0.00005 meters
Explanation:
In order to determine the diameter in meters, you have to know the meaning of the unit [um]. This unit is called "micrometer" and its value is m.
Then, we change the [um] unit into its expanding form:
50 um=
Finally, the diameter in meters is 0.00005 meters.