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Natalka [10]
4 years ago
14

Jack tries to place magnets on the door of his refrigerator. He observes that the magnets don’t stick. He guesses that the door

of the refrigerator is made of a nonmagnetic substance. What stage of scientific investigation does his guess represent?
ask questions

construct a hypothesis

explain the results

make observations
Physics
1 answer:
Oliga [24]4 years ago
8 0
Construct a hypothesis.
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A hammer falls from a construction worker's hand 30m above the ground at the same time that a filled soft drink can is projected
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For harmer:-

initial velocity=u=0m/s

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Now

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For soft drink:-

u=24m/s

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Using eq(1)

\\ \sf\longmapsto 30-5t^2=24t-5t^2

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\\ \sf\longmapsto t=1.2s

After 1.2s they will meet.

Now

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4. A force of 5 N gives a mass m,, an acceleration of 10 m's, and a mass
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Answer:

For mass m  1  newton 2nd law

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For mass m  2

​F=m  2  a 2

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if tied together  

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Now

F=M T  Q T

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Explanation:

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I  think b but  im not sure just helping

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