3 years ago

A potted plant falls from a window sill and is gaining speed. which one of the following statements is true of the plant?

1 answer:

4 0

Since the plant is falling, the gravitational energy decreases, so it means b) kinetic energy is increasing.

Hope this helps!! :)

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2 years ago

In an alcohol-in-glass thermometer, the alcohol column has length 12.66 cm at 0.0 ∘C and length 22.49 cm at 100.0 ∘C. Part A Wha

anygoal [31]

Answer:

$62.1566632757\ ^{\circ}C$

$15.9715157681\ ^{\circ}C$

Explanation:

$\Delta T$ = Change in termperature

$\Delta L$ = Change in length

We have the relation

$\dfrac{\Delta L}{\Delta T}=\dfrac{22.49-12.66}{100-0}=\dfrac{18.77-12.66}{t-0}\\\Rightarrow t=\dfrac{18.77-12.66}{0.0983}\\\Rightarrow t=62.1566632757\ ^{\circ}C$

The temperature is $62.1566632757\ ^{\circ}C$

$\dfrac{\Delta L}{\Delta T}=\dfrac{22.49-12.66}{100-0}=\dfrac{14.23-12.66}{t-0}\\\Rightarrow t=\dfrac{14.23-12.66}{0.0983}\\\Rightarrow t=15.9715157681\ ^{\circ}C$

The temperature is $15.9715157681\ ^{\circ}C$

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