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Anna71 [15]
4 years ago
13

Which is a characteristic of atoms?

Physics
2 answers:
Jlenok [28]4 years ago
8 0
Atoms consist of three basic particles ptotons electrons and neutrons.
bagirrra123 [75]4 years ago
6 0

Answer:

the answer is b

Explanation:

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Which object has a weight of about 22.5 n the book the rock the box the fish
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2 years ago
A 75 kg football player is gliding forward across very smooth ice at 4.6 m/s. He throws a 0.47 kg football straight forward. A)
lord [1]

Answer:

4.53482 m/s

4.506 m/s

Explanation:

m_1 = Mass of player = 75 kg

v_1 = Initial velocity of player = 4.6 m/s

m_2 = Mass of ball = 0.47 kg

v_1 = Initial velocity of ball = 15 m/s

The linear momentum of the system is conserved

(m_1+m_2)v_1=m_1v+m_2v_2\\\Rightarrow v=\dfrac{(m_1+m_2)v_1-m_2v_2}{m_1}\\\Rightarrow v=\dfrac{(75+0.47)4.6-0.47\times 15}{75}\\\Rightarrow v=4.53482\ m/s

The player's speed is 4.53482 m/s

In the second case the equation of momentum is

(m_1+m_2)v_1=m_1v+m_2(v_2+v_1)\\\Rightarrow v=\dfrac{(m_1+m_2)v_1-m_2(v_2+v_1)}{m_1}\\\Rightarrow v=\dfrac{(75+0.47)4.6-0.47\times (15+4.6)}{75}\\\Rightarrow v=4.506\ m/s

The player's speed is 4.506 m/s

4 0
4 years ago
How can recycling materials lead to environmental sustainability?
daser333 [38]
Oh my baby boy your back th anwsers is <span>A. Recycling materials help decrease the amount of new materials taken from the environment. </span>
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4 years ago
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