As this sandhill crane (Grus canadensis) glides in to a landing, it descends along a straight-line path at a constant speed. During the glide, what happens to the total mechanical energy (the sum of kinetic energy and gravitational potential energy)? (i) It stays the same; (ii) it increases due to the effect of gravity; (iii) it increases due to the effect of the air; (iv) it decreases due to the effect of gravity; (v) it decreases due to the effect of the air.
As this sandhill crane (Grus canadensis) glides in to a landing, it descends along a straight-line path at a constant speed. During the glide, what happens to the total mechanical energy (the sum of kinetic energy and gravitational potential energy)? (i) It stays the same; (ii) it increases due to the effect of gravity; (iii) it increases due to the effect of the air; (iv) it decreases due to the effect of gravity; (v) it decreases due to the effect of the air.
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As this sandhill crane (Grus canadensis)
glides in to a landing, it descends along
a straight-line path at a constant speed.
During the glide, what happens to the total
mechanical energy (the sum of kinetic energy
and gravitational potential energy)? (i) It stays
the same; (ii) it increases due to the effect
of gravity; (iii) it increases due to the
effect
of the air; (iv) it decreases due to
the effect of gravity; (v) it decreases due
to the effect of the air.
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