1 year ago

20 POINTS…

1 answer:

6 0

The rate of molecular motion will increase as the temperature rises. At the same temperature, an object with less massive molecules will have a faster molecular speed. Two objects with the same average kinetic energy will have the same temperature when kinetic temperature is applied.

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Hooke’s law states that the distance that a spring is stretched by hanging object varies directly as the mass of the object. If

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Answer:

$d_{2}$ = 33.33 cm

Explanation:

Given:

When mass, $m_{1}$ =21 kg

distance travelled is $d_{1}$ = 140 cm

When mass, $m_{2}$ =5 kg

distance travelled is $d_{2}$ = ?

Hooke's law state that within elastic limit, when an external force is applied to a body, the body gets deformed and when the force is released the gets back to its original form.

Therefore according to the question,

$\frac{d_{1}}{m_{1}}=\frac{d_{2}}{m_{2}}$

$\frac{140}{21}=\frac{d_{2}}{5}$

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Distance travelled is 33.33 cm when mass is 5 kg.

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2 years ago

Light of frequency 2.5 x 1015 Hz illuminates a

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Answer:

h f = W + KE

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W = (16.6 - 10.1)E-19 = 6.5E-19 J

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im in fifth grade so i guessd. gl tho heh.

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