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kati45 [8]
3 years ago
13

What’s the correct answer

Advanced Placement (AP)
1 answer:
koban [17]3 years ago
7 0

C.

The door is made of glass, which is an example of non-porous surface.

Ninhydrin is one of the most widely used reagents for chemical development of fingerprints on porous surfaces.  

The correct answer would be C. Hope this helps.  

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The clash between evolutionism and creationism as embodied in the Scopes Monkey Trial highlighted which of these opposing views?
just olya [345]
Yes, the answer is B
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Refer to the two sources.
Sphinxa [80]
It’s d you really just got to read it closely and you will be like ya it’s d
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During an el Niño event warm surface water moves from the western equatorial Pacific Ocean to the eastern equatorial region. Whi
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brainly.com/question/1297418

3 0
3 years ago
a piece of clay with mass m is traveling with an unknown velocity in the positive x-direction, when it collides and sticks to a
Lyrx [107]

Answer:

5\ \text{m/s}

Explanation:

m_1 = Mass of clay = m

m_2 = Mass of block = 3m

u = Velocity of clay

v = Velocity of block = -3 m/s

v_c = Velocity of combined mass = -1 m/s

As mometum in the system is conserved we get

m_1u+m_2v=(m_1+m_2)v_c\\\Rightarrow u=\dfrac{(m_1+m_2)v_c-m_2v}{m_1}\\\Rightarrow u=\dfrac{(m+3m)\times -1-3m\times -3}{m}\\\Rightarrow u=\dfrac{5m}{5}\\\Rightarrow u=5\ \text{m/s}

The original velocity of the clay mass was 5\ \text{m/s}.

6 0
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The No Child Left Behind Act was a grant program enacted in 2002 that directed testing elementary and secondary students in math
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I believe it C sorry if it wrong
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