Answer: An object's velocity (a vector) does not change if and only if the net force acting on the object is zero. In other words, if there is no net force on an object, its speed and direction of motion do not change (including if it is at rest).
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Right answer: 64 units</h2><h2>
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According to the law of universal gravitation, which is a classical physical law that describes the gravitational interaction between different bodies with mass:
Where:
is the module of the force exerted between both bodies
is the universal gravitation constant.
and are the masses of both bodies.
is the distance between both bodies
In this case we have a gravitation force , given by the formula written at the beginning. Let’s rename the distance as :
(1)
And we are asked to find the gravitation force with a given distance of :
(2)
The gravity constant is the same for both equations, and we are assuming both masses are constants, as well. So, let’s isolate in both equations:
From (1):
(3)
From (2):
(4)
If (3)=(4):
(5)
Now we have to find :
(6)
If :
>>>>This is the new force of attraction
Answer:
somewhere between 32 m/s and 2 m/s
Explanation:
If the acceleration is applied in the same direction as the original motion, the motion increases.
17 + 3(5) = 32 m/s
If the acceleration is applied in the opposite direction as the original motion, the motion decreases.
17 - 3(5) = 2 m/s
If the acceleration is applied at an angle to the original motion, then we need to vector add original 17 m/s and the acceleration caused 15 m/s to find the final result. We would need the angle in ANY of these cases as velocity is a vector.
Answer: The recently discovered Eris orbits the Sun every 557 years. ... 67.69 AU; since the average distance for Pluto from the Sun is 39.3 AU then the distance is nearly twice.
Explanation: