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KiRa [710]
3 years ago
11

A satellite is orbiting Earth in an approximately circular path. It completes one revolution each day (86,400 seconds). Its orbi

tal distance is 22,500 kilometers from the Earth's center. What is the satellite's average speed?
Physics
1 answer:
Ray Of Light [21]3 years ago
5 0

Well, speed is always relative to some reference, and you haven't
specified the reference.  Also, you haven't specified the "tilt" of the
satellite's orbit relative to the Earth's equator.

So I'm going to pick the ones I like for both items:

-- For the satellite's average speed, I choose the reference
to be the center of the little satellite-TV dish on the corner of
my neighbor's garage roof.

-- For the satellite's orbital inclination, I choose zero.  That is,
the satellite's orbit is directly over Earth's equator. 

If you'll allow me those two assumptions, then your bird is
a communications satellite, located at the magic latitude
and distance from Earth where its orbital revolution matches
the Earth's rotation.  Viewed from anywhere on Earth, the
satellite's average speed is zero, and it appears to hang
motionless in the sky.

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The momentum increases by a factor of 2

Explanation:

We can solve this problem by rewriting the momentum of the rocket in terms of the kinetic energy and the mass.

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4 0
3 years ago
During the class prize-giving ceremony, Anand clapped his hands hard while Kumar clapped his hands softly. Everybody could hear
algol13

Answer:

C - higher volume

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But the intensity of sound produced by them would have been different . Intensity represents energy a sound carries . Hard hitting clap will produce sound of higher intensity . Intensity of sound is also called high volume sound . So Kumar's clap will carry greater energy and hence greater volume of sound .

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