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brilliants [131]
3 years ago
5

This table shows experiments done by five scientists. Scientist Experiment Kyle cut a bar of gold in half Katie burned paper int

o ash Grace reacted acid and limestone together, forming carbon dioxide Isaac melted solid aluminum, forming liquid aluminum Caleb added oxygen to metal, forming rust Which three scientists have completed a chemical change? Kyle, Katie, Grace Katie, Grace, Isaac Katie, Grace, Caleb, Kyle, Isaac, Caleb
Physics
2 answers:
zvonat [6]3 years ago
5 0

Answer:

katie grace celeb

Explanation:

ik

Sladkaya [172]3 years ago
4 0

Answer:

give graph

Explanation:

we need it to answer

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A 500kg car skids to a stop at a traffic light, leaving behind a 18.25m skid mark as it comes to a rest. Assuming that the car i
Nastasia [14]

Answer:

Coefficient of friction will be 0.587

Explanation:

We have given mass of the car m = 500 kg

Distance s = 18.25 m

Initial velocity of the car u = 14.5 m/sec

As the car finally stops so final velocity v = 0 m/sec

From second equation of motion

v^2=u^2+2as

0^2=14.5^2+2\times a\times 18.25

a=-5.76m/sec^2

We know that acceleration is given by

a=\mu g

5.76=\mu\times  9.81

\mu =0.587

So coefficient of friction will be 0.587

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