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fomenos
4 years ago
15

What affects the strength of a gravitational force

Physics
1 answer:
Rama09 [41]4 years ago
3 0

The strength of the gravitational forces between two objects is completely determined by

<em>-- the masses of the objects</em>

<em>-- the distance between the centers of the objects.</em>

Nothing else has any effect on the strength of the gravitational forces between them.  Not their motion, or other forces acting on them, or a steel, concrete, and Kryptonite wall between them.

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A rocket is fired at 100 m/s at an angle of 37, what was its total speed when it landed?
disa [49]

Answer:

100 m/s

Explanation:

Let find the velocity components first

Fx = 100 * cos (37)   = 79.86 m/s

Fy = 100 * sin (37)   =  60.18 m/s

applying motion equations

  • Horizontal motion

assuming no acceleration in horizontal direction we can assure that the ending velocity component will still remain  Fx = 79.86 m/s

  • Vertical motion  (upwards)

V² = U² +2as

    =  60.18² + 2*(-10)*0

Fy  = 60.18 m/s

Total speed = √(F²x+F²y) = 100 m /s

*** You can take the same answer considering the Energy

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4 years ago
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Orlov [11]

Explanation:

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3 years ago
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3 years ago
Define the unit of current. Name the device which is used to measure
Free_Kalibri [48]

Answer:

The ampere, symbol A, is the SI unit of electric current. It is defined by taking the fixed numerical value of the elementary charge e to be 1.602 176 634 x 10-19 when expressed in the unit C, which is equal to A s, where the second is defined in terms of ΔνCs.

the device used to measure current in a circuit is ammeter

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Which is the best reason a writer would use a unreliable narrator
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