B. Tornado destruction
It is based on the amount of damage
Total work energy on the input side is WE = Fs; where F is a force acting on a mass to push it s distance. This is the so-called work function. Let fs = we, which is the work energy (useful energy) attained as output when WE is input.
<span>From the conservation of energy WE = Fs = fs - kNs = Total Output energy. Net force f = F - kN where kN is friction force acting against the pushing (input) force F. In the real world, there is always friction at some level. That is kN > 0 always. </span>
<span>Thus Fs = (F - kN)s; kNs = the energy lost to friction where k is the friction coefficient and N is the normal force on the surface(s) where the friction is generated. By definition, efficiency = fs/Fs = useful work/work input. Clearly fs = Fs - kN < Fs . Thus efficiency = fs/Fs < 1.00, which means output fs < Fs the input whenever kN > 0, which in the real world it always is. </span>
<span>The short answer is...output is always less than input because of friction and, sometimes, other losses like wind drag (which is a form of friction anyway).</span>
When the cold front or wind passes weather station, the pressure increases whereas the temperature increases.
<h3>What happen when cold front passes a New York weather station?</h3>
Pressure rises and temperature falls as a cold front passes a New York weather station because wind apply pressure on the objects when they blow. If the wind is cold then the temperature decreases.
So we can conclude that when the cold front or wind passes weather station, the pressure increases whereas the temperature increases.
Learn more about pressure here: brainly.com/question/25736513#SP1
Answer:
Explanation:
Given that
the ball travelled in positive direction x1 = 20 cm
the ball comes to stop at a distance = x2 = 6 cm
the distance travelled in -ve direction
x3 = x1 - x2 = 20- 6 = 14 cm
total distance co=vered by the given ball
x = x1 +x3 = 20+14 = 34 cm
x = 34 cm