2 years ago

Which of these experiments would make use of quantitative data

Physics

2 answers:

Sever21 [200]2 years ago

8 0

the answer is (B). The answers (A), (C), and (D) are not qualitative.

Hope this helps!

kumpel [21]2 years ago

7 0

Study on the effects of sunlight on the growth rate of plants

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D newton third law

Explanation:

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2 years ago

The collision between a hammer and a nail can be considered to be approximately elastic. estimate the kinetic energy acquired by

Setler [38]

Here we can use momentum conservation as in this type of collision there is no external force on it

$m_1v_{1i} + m_2v_{2i} = m_1 v_{1f} + m_2v_{2f}$

now here we can say

$m_1 = 10 g$

$v_{1i} = 0$

$m_2 = 550 g$

$v_{2i} = 3.5 m/s$

now here we can say

$10*0 + 550 * 3.5 = 10 v_{1f} + 550 v_{2f}$

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now by coefficient of restitution

for elastic collision we know that e = 1

$v_{2f} - v_{1f} = e(v_{1i} - v_{2i})$

$v_{2f} - v_{1f} = 0 - 3.5$

now by solving the two equation

$56v_{2f} = 189$

$v_{2f} = 3.375 m/s$

also we know that

$v_{1f} = v_{2f} + 3.5 = 3.375 + 3.5 = 6.875 m/s$

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2 years ago

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What are the 4 categories that makes the human body

Dominik [7]

Answer:

epithelial, muscle, nervous, and connective tissues.

Explanation:

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2 years ago

The volume of a gas at 400.0ml when the pressure is 1.00atm. at the same temperature, what is the pressure at which the volume o

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Answer:

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2 years ago

What is meant by critical angle of indence?

drek231 [11]

An angle of refraction of 90-degrees

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