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3 years ago

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The volume of an ideal gas changes from 0.40 to 0.55 m3 although its pressure remains constant at 50,000 Pa. What work is done o

n the system by its environment

1 answer:

Rama09 [41]3 years ago

7 0

Answer:

w= p∆v 50000 ( 0.55-0.40) and calculate and you get it

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An insect meanders across a sidewalk. The insect moves 15cm to the right, 10cm up the sidewalk and 8cm to the left. What is the

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Answer:12.206 cm, $\theta =54.99^{\circ}$

Explanation:

Given

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so its position vector is $r_1=15i$

Now it moves 10 cm up so its new position vector

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so its displacement is given by

$|r_3|=\sqrt{7^2+10^2}=\sqrt{149}=12.206 cm$

For direction, let \theta is the angle made by its position vector with x axis

$tan\theta =\frac{10}{7}=1.428$

$\theta =54.99^{\circ}$

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