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il63 [147K]
3 years ago
10

if the speed of sound through the air is rounder 80 meters per second what will be the change in temperature of the air​

Physics
1 answer:
d1i1m1o1n [39]3 years ago
8 0

hope it is if the speed in air is larger by 80m/s what is change in temperature.

Explanation:

hope this helps you

............

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Answer:

Work done, W = 1786.17J

Explanation:

The question says "A 75.0-kg painter climbs a 2.75-m ladder that is leaning against a vertical wall. The ladder makes an angle of 30.0 ° with the wall. How much work (in Joules) does gravity do on the painter? "

Mass of a painter, m = 75 kg

He climbs 2.75-m ladder that is leaning against a vertical wall.

The ladder makes an angle of 30 degrees with the wall.

We need to find the work done by the gravity on the painter.

The angle between the weight of the painter and the displacement is :

θ = 180 - 30

= 150°

The work done by the gravity is given by :

W=Fd\cos\theta\\\\=75\times 10\times 2.75\times \cos30\\\\=1786.17\ J

Hence, the required work done is 1786.17 J.

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3 years ago
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The centripetal force acting on the space shuttle
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Answer:

(4) weight

Explanation:

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where

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When the shuttle orbits the Earth, the centripetal force that keeps the shuttle in circular motion is given by the gravitational attraction between the shuttle and the Earth, which corresponds to the weight of the shuttle, and it is given by:

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Answer:

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Explanation:

See attachment

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