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taurus [48]
2 years ago
5

Pls do it I don’t understand

Chemistry
1 answer:
Ann [662]2 years ago
6 0
The first question's answer is

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Which of the following best shows two element combining to form a compound
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After the solution reaches equilibrium, what concentration of zn2 (aq remains?
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Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
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A cord is used to vertically lower an initially stationary block of mass m kg at a constant downward acceleration of g/4. the bl
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(a) We know that work is the product of Force and Distance so: (in this case Distance is negative since going down so –d)

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(b) The work by the weight of the block is simply:</span>

work = Mgd <span>

(c) The kinetic energy is simply equivalent to the net work, therefore:</span>

KE = net work

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(d) The velocity is:</span>

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Plugging in the value of KE from c:

v = √(2*Mgd / 4M)

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I need help!!!!!!! please
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A. bacteria

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can i have brainlest?

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