Ice that formed thousands of years ago is often found to contain tiny bubbles of gas. this gas came from __________. ice that fo
1 answer:
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1) Average speed
2) Displacement
Explanation:
1)
Speed is a scalar quantity which gives a measure of how fast a body is moving. It is equal to the ratio between the distance travelled by an object and the time taken to cover that distance:
where
d is the distance covered
is the time taken
It is important to note that being a scalar, speed does not have any direction. Moreover, distance is also a scalar quantity, which corresponds to the total length of the path covered by the object, regardless on the direction taken.
So, the equation "travelled distance/elapsed time" corresponds to the average speed. (where the term average refers to the fact we are not measuring the speed at a specific instant in time, but on a certain time interval .
2)
Velocity is a vector quantity, so it has both a magnitude and a direction.
The magnitude of the velocity is given by:
where
is the change in position (or displacement) of the object
is the time taken
And the direction of the velocity corresponds to the direction of the displacement.
We must note that while distance does not depend on the direction, displacement does. In fact, displacement measures the difference between the initial and final position of the object.
Therefore, the equation "change in position / elapsed time" is equal to the average velocity.
Learn more about speed and velocity:
brainly.com/question/8893949 (speed)
brainly.com/question/5063905 (speed vs velocity)
brainly.com/question/5248528 (velocity)
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The isotope notation for the isotope of iodine that has 67 neutrons is
Isotopes can be defined as an element members that all have the same number of protons but different numbers of neutrons.
Isotopes possess the same number of protons in a nucleus and this is what defines the element's atomic number.
In conclusion, The isotope notation for the isotope of iodine that has 67 neutrons is
Learn more about Isotopes: brainly.com/question/14220416
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