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Andrej [43]
2 years ago
11

When the distance between two interacting objects doubles, the gravitational force is

Physics
1 answer:
Umnica [9.8K]2 years ago
5 0

The gravitational force will be one quarter.

The gravitational force between two objects is given by the formula

F=GMm/r^2

here, r is the distance between the objects.

Thus the gravitational force is inversely proportional to the square of the distance between the objects, Therefore if the distance between two objects is doubled the force will be one quarter.

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Helpp!!! Will mark brainlst
masya89 [10]

Answer:

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Explanation:

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Suppose the initial kinetic energy and final potential energy in an experiment are both zero. What can you conclude?
puteri [66]

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That an item is neither moving nor staying still in a position that is building up energy.

Explanation:

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3 years ago
Read 2 more answers
Using a density of air to be 1.21kg/m3, the diameter of the bottom part of the filter as 0.15m (assume circular cross-section),
salantis [7]

Answer:

The  drag coefficient is  D_z  =  1.30512  

Explanation:

From the question we are told that

     The density of air is  \rho_a  = 1.21 \ kg/m^3

     The diameter of bottom part is  d = 0.15 \ m

The  power trend-line  equation is mathematically represented as

      F_{\alpha }  = 0.9226 * v^{0.5737}

let assume that the velocity is  20 m/s

Then

      F_{\alpha }  = 0.9226 * 20^{0.5737}

       F_{\alpha }  = 5.1453 \ N

The drag coefficient is mathematically represented as

      D_z  =  \frac{2 F_{\alpha } }{A \rho v^2 }

Where  

     F_{\alpha } is the drag force

      \rho is the density of the fluid

       v is the flow velocity

       A is the area which mathematically evaluated as

       A = \pi r^2 =  \pi  \frac{d^2}{4}

substituting values

     A =  3.142 *    \frac{(0.15)^2}{4}

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Then

   D_z  =  \frac{2 * 5.1453 }{0.0176 * 1.12 *  20^2 }

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3 0
2 years ago
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NeX [460]

Answer:

A (2066,6 N)

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The amout of time it took to move the rock doesn´t matter at all.

It is called a distraction variable, We don´t need it to solve the problem it is there just to confuse.

5 0
2 years ago
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Airida [17]

Answer:

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