Answer: Solor cycles and tings
Answer:
B
Explanation:
Nonmetals are poor conduster to heat and electricity
The answer would be 60 cuz a watetfall is a waterfall
The environmental factor that the pyramid of energy
incorporates that prevents it from inverting is population size.
Population size<span> <span>is the actual number of individuals in a </span>population. Populationdensity is a measurement of population size<span> per unit area, i.e., </span>population sizedivided by total land area. Abundance refers to the relative
representation of a species in a particular ecosystem.</span>
I am hoping that this answer has
satisfied your query and it will be able to help you in your endeavor, and if
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Answer:
a ) = 381.48 J
b )= 84.25 cm
Explanation:
Kinetic energy of the runner
= 1/2 m v²
= .5 x 66 x 3.4²
= 381.48 J
The final kinetic energy of the runner is zero .
Loss of mechanical energy
= 381.48 J
This loss in mechanical energy is due to action of frictional force .
b )
Let s be the distance of slide
deceleration due to frictional force
= μmg/m
.7 x 66 x 9.8 / 66
a = - 6.86 m s⁻¹
v² = u² - 2 a s
0 = 3.4² - 2x6.86 s
s = 3.4² / 2x6.86
= .8425 m
84.25 cm
