Answer:
3.2 miles
Explanation:
We can assume that the light coming from the lightning reach instantaneously our eyes (because light travels very fast, 
), so the time between the lightining and the hearing of the thunder is equal to the time that sound takes to each us.
Sound travels in air approximately at speed
v = 343 m/s
So the distance it covers in a time of t = 15 seconds is
And using the conversion from meters to miles,
1 mile = 1609 meters
we find
Answer:
Completion between two organism is when they fight over resources inadvertently causing the use and destruction of recourses making it more scares. if they don't adapt they die out.
Answer:
acceleration = 1.79 m/s^2
Tension = 6817 N
Explanation:
First let's find Elizabeth's weight:
Her weight is greater than the normal force (N = 450 N), so the elevator is going downwards.
The acceleration of Elizabeth is given by:
Where P is the weight of Elisabeth, N is her normal force, m is her mass and a is the acceleration. Then, we have that:
The tension in the cable is given by:
In this case, we use the total mass, so we have:
A line that joins dots plotted on a graph paper is called a line graph. It is used to show the variation of a quantity with respect to another. A line graph represents two pieces of information that are usually related.
Taking the perspective of a student learning astronomy or physics, graphs are useful because they can summarize a LOT of information into one picture. When scientists do research graphs are often the only way to represent data that has been collected.
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