3 years ago

All the steps of the scientific method rely on valid observations. true or false

Physics

2 answers:

butalik [34]3 years ago

4 0

Well, basically because the observations can help you out during the experiment.

morpeh [17]3 years ago

4 0

I just took a quiz and it had the same question. the answer was true.

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Answer:

Speed of river is 0.45 m/s

Speed of boat is 2.65 m/s

Explanation:

$v_r$ = Speed of river

$v_c$ = Speed of canoe

$v_r+v_c=2.8\ m/s$

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Adding the equations we get

$2v_r=0.9\\\Rightarrow v_r=\frac{0.9}{2}\\\Rightarrow v_r=0.45\ m/s$

$0.42+v_c=2.8\ m/s\\\Rightarrow v_c=2.8-0.45\\\Rightarrow v_c=2.65\ m/s$

Speed of river is 0.45 m/s

Speed of boat is 2.65 m/s

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