Two asteroids are 100,000 m apart. One has a mass of 3.5 x 106 kg. If the
2 answers:
Answer:
mass of the other asteroid =
Explanation:
We use the definition for the force between two celestial objects under the action of the gravity they produce using newton's general gravitational constant:
The force between the two asteroids will then be given by:
where G is Newton's gravitational constant, the asterioid's masses are M1 and M2 respectively, and d is the distance between them.
We replace the known values in he equation above, and solve for the missing mass:
Since the units for the given quantities are all in the SI system, our resultant units for the unknown mass of the asteroid will be in kg.
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Explanation:
The attached figure shows the position-time graph of a ladybug. We need to find the average speed of the ladybug between t = 4 s to t = 7 s.
We know that, the slope of a position-time graph gives velocity of an object. It can be given by :
In this case, the position of a ladybug at t = 4 s and at t = 7 s is the same i.e. 2 m.
It means its velocity is equal to at this time or we can say that ladybug is at rest.
