A researcher who does not want to manipulate or interfere with the behavior of research subjects would conduct a __________ stud
y.
A.
cross-sectional
B.
naturalistic observation
C.
case
D.
longitudinal
Please select the best answer from the choices provided
A
B
C
D
2 answers:
Answer:
its gunna be <u><em>B</em></u> chief
Explanation:
everyone else said so...
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Answer:
F = 1 N
Explanation:
Given,
Change in momentum = 3 kg m/s
time, t = 3 s
Force = ?
We know,
Force is equal to change in momentum per unit time.
F = 1 N
Hence, average force acting on the object during collision is equal to 1 N.
Answer:
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Explanation:
Answer:
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Explanation:
Answer:
25 kJ
Explanation:
Ke = mv²/2
= 2000·25/2
= 1000·25
= 25000 J
= 25 kJ
Answer:
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