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Paraphin [41]
3 years ago
11

What is rotation and revolution

Physics
1 answer:
skad [1K]3 years ago
5 0
When an object turns around an internal axis (like the Earth turns around its axis) it is called a rotation. When an object circles an external axis (like the Earth circles the sun) it is called a revolution.
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Mkey [24]
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6 0
2 years ago
2 1100 kg cars drive east; the first moving at 30 m/s the 2nd at 15 m/s what is the magnitude of the total momentum of the syste
11Alexandr11 [23.1K]
<h3>Answer:</h3>

49500 kgm/s

<h3>Explanation:</h3>

Data given;

  • First car; Mass = 1100 kg
  • Velocity = 30 m/s
  • Second car; mass = 1100 kg
  • Velocity = 15 m/s

We are required to calculate the total momentum of the system.

  • We need to know that momentum is calculated by multiplying the velocity of a body by its mass.
  • Therefore;

Momentum of the first car = 1100 kg × 30 m/s

                                           = 33,000 kgm/s

Momentum of the second car = 1100 kg × 15 m/s

                                                  = 16,500 kgm/s

Therefore;

Total momentum = 33,000 kgm/s + 16,500 kgm/s

                             = 49500 kgm/s

Thus, the total momentum of the system is 49500 kgm/s

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3 years ago
An animal cell placed in pure distilled 100% will
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In a hypertonic solution, there is a higher solute concentration on the outside of the cell than on the inside, causing the cell to shrivel.

i hope this helps

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Mike can travel 80 Km in 4 hours

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