Physics, 07.03.2020 00:17 zavadskipaulo1oyt4og
Suppose a parachutist is falling toward the ground, and the downward force of gravity is exactly equal to the upward force of air resistance. Which statement is true?
a. The velocity of the parachutist must be zero.
b. The velocity of the parachutist is not changing with time.
c. The velocity of the parachutist is increasing with time.
d. The velocity of the parachutist is increasing with time.
Answers: 3
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Atoms seldom exist as independent particles in nature a) as single particles, most atoms have low potential energy b) their electronegativity is much lower when they combine with other atoms c) atoms are more stable when they combine with other atoms d) neutral particles are rare
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Suppose a parachutist is falling toward the ground, and the downward force of gravity is exactly equ...
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