A toy plane has a mass of 2.5kg and is 18 m above the ground. It is moving 4.5 m/s. how much mechanical energy does the toy have?
A. 416J
B. 441J
C. 466J
D. 491J
​

466J (c)

Explanation:

Mechanical Energy= Kinetic+Potential

Potential energy= mgh

Plug in givens

mgh=2.5*18*9.8=441J

Kinetic Energy = 1/2mv^2

Plug in givens

1/2mv^2= 1/2(2.5)(4.5)^2= 25.3125J

Mechanical energy= 441J+25.3125J=466.3125J or 466J

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

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a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.