Subjective questions can be answered most likely through well-designed scientific investigations. Investigating peoples opinions or favorites does not involve any scientific investigations.
<h3>What are scientific investigation?</h3>
Scientific investigations include study on different natural phenomenon through well designed research methodologies. They include a preliminary hypothesis based on observations and various scientific records helps for reference.
Through well designed scientific experiments we can solve subjective questions and can be helpful in solving different environmental or social issues.
Peoples opinion or objective types questions are not targeted at scientific investigation, hence, option b is correct.
To find more on scientific investigations, refer here:
brainly.com/question/8386821
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Answer:
Pressure difference between Top and Bottom of the cylinder is given as
Explanation:
As we know that the force due to pressure is balanced by the weight of the cylinder
So we will have
so we have
so we have
so we have
A concave is when the bump is pressed downwards; So if the image has a downward hole, then it's concave. If it's pressed upwards like a hill or mountain, then it's convex.
Answer:
work = 0
Explanation:
Let's remember that work is defined as the product of a force by a distance. Distance is the physical path displaced by the body under the action of that force.
W = F * d
where:
W = work [J]
F = force [N]
d = distance [m]
In this case, the toy is held at a height, there is no displacement from one point to another. So there is no work and this is equal to zero.
W = (2*9.81) * 0 = 0 [Joules]
Answer:
Speed acquired (Final velocity) = 12 m/s
Distance travelled = 720 meter
Explanation:
Given:
Uniform acceleration = 0.1 m/s²
Initial velocity = 0 m/s
Time taken = 2 minutes = 2 x 60 = 120 second
Find:
(a) Speed acquired (Final velocity)
(b) Distance travelled
Computation:
v = u + at
v = 0 + 0.1(120)
Speed acquired (Final velocity) = 12 m/s
Distance travelled = ut + (1/2)(a)(t²)
Distance travelled = (0)(120) + (1/2)(0.1)(120²)
Distance travelled = (1/2)(0.1)(14400)
Distance travelled = 720 meter
