Answer: 95N
Explanation:
Force necessary to stretch a spring = ?Extension of spring, e = 0.5 m
Spring constant, k = 190 N/m
Apply the formula for Hooke's law,
Force = Spring constant x extension
i.e F = ke
F = 190 N/m x 0.5 m
F = 95 N
Thus, 95 Newton of force is necessary to stretch the spring
Answer:
v = 1.2 m/s
Explanation:
The wavelength of the waves is given as the horizontal distance between the crests:
λ = wavelength = 5.5 m
Now, the time period is given as the time taken by boat to move from the highest point again to the highest point. So it will be equal to twice the time taken by the boat to travel from highest to the lowest point:
T = Time Period = 2(2.3 s) = 4.6 s
Now, the speed of the wave is given as:
where,
v= speed of wave = ?
f = frequency of wave =
Therefore,
<u>v = 1.2 m/s</u>
Answer:
B.
Explanation:
Im not sure about it but.i hope its right
The answer is "A. qualitative".
Qualitative Research is essentially exploratory research. It is utilized to pick up a comprehension of fundamental reasons, sentiments, and inspirations. It gives bits of knowledge into the issue or creates thoughts or speculations for potential quantitative research. Qualitative Research is additionally used to reveal drifts in thought and feelings, and jump further into the issue. Qualitative information accumulation strategies change utilizing unstructured or semi-organized methods. Some basic strategies incorporate concentration gatherings (amass talks), singular meetings, and cooperation/perceptions. The example estimate is commonly little, and respondents are chosen to satisfy a given share.