" <em>Energy is never created or destroyed.</em> "
All the rest is commentary.
Answer:
Time = 801.802 secs.
Explanation:
Speed can be defined as the rate of change in the magnitude of distance with respect to time. It is a scalar quantity because it only has magnitude but no direction.
Given the following data;
Average speed = 11.1m/s
Time =?
Distance = 8900m
![Speed (S) = \frac{distance}{time}](https://tex.z-dn.net/?f=Speed%20%28S%29%20%3D%20%5Cfrac%7Bdistance%7D%7Btime%7D)
![S = \frac{d}{t}](https://tex.z-dn.net/?f=S%20%3D%20%5Cfrac%7Bd%7D%7Bt%7D)
Making time (t) the subject of formula, we have;
![Time (t) = \frac{d}{s}](https://tex.z-dn.net/?f=Time%20%28t%29%20%3D%20%5Cfrac%7Bd%7D%7Bs%7D)
![Time (t) = \frac{8900}{11.1}](https://tex.z-dn.net/?f=Time%20%28t%29%20%3D%20%5Cfrac%7B8900%7D%7B11.1%7D)
Time = 801.802 secs.
<em>Hence, the time the biker takes to cover the segment is 801.802 seconds. </em>
Answer:
The formula for potential energy depends on the force acting on the two objects. For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.
Nuclear fission is geothermal physics.
Explanation:
Q=mc(T2-T1)
or
q = mcΔT ,
where m is the mass of the sample,
c is the specific heat,
and ΔT is the temperature change.
Q=2.0 × 2000 × 5
Q=20000J⋅kg −1 ⋅K −1
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