The term precision is how repeatable the experiment is
Accuracy is how close to the right answer you are.
Answer:
Speed
Explanation:
- Speed is a scalar quantity that represents the rate of change of distance. It is calculated as
where
d is the distance travelled by the object (regardless of its direction)
t is the time elapsed
The speed is measured in meters per second (m/s). We can also notice that speed is different from velocity: in fact, speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude+direction).
Yes but it gets a little more complicated unfortunately. The kinematic equations work more easily when you calculate the average acceleration. If that is not possible, you will need to separate the the work into parts where the acceleration is constant. IF you have a problem where the change in acceleration is exponential you would need an integral calculation.
<em>HOWEVER</em>, Even if you are under the impression that acceleration is changing in some non-linear fashion, you are probably over thinking it a bit. Simply calculate the <em>average</em> acceleration and work with that.
If you think about it, acelleration is just an expression of the <em>rate of change</em> of velocity. If that rate of change is its self changing, then that just equates to a different rate of change in velocity, i.e a different acceleration (or average acceleration). SO just take the 'average' acceleration, knowing that there is no such thing physically.
Anaphase, the shortest stage of mitosis
Answer:
Is constant.
Explanation:
Isolated systems cannot exchange energy or matter outside the borders of the system.