Consider what happens when you jump up in the air. Which of the following is the most accurate statement? Consider what happens
1 answer:
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Objects in vertical motion are an illustration of non-uniform motion. At the peak of the circle, centripetal force is balanced by the object's weight. Therefore, the minimum speed required at this top point is given by v = 
= 
= 5.23 m/s. As the sphere descends from the top to the bottom of the circle, according to the law of conservation of energy, potential energy can be expressed as 
where u is the velocity at the lowest point. Consequently, the modified equation is
=
=
= 11.71 m/s. The collision of the dart with the bullet is an inelastic one. According to the conservation of momentum: v =
=
=
= 58.55 m/s. Thus, the dart's minimum initial speed for the combined system to complete a circular loop post-collision is 58.55 m/s.
Answer:
1.43 x 10¹⁷.
They will move away from each other.
Explanation:
The force acting on each charged sphere is determined as F = mass x acceleration
= 8.55 x 10⁻³ x 25 x 9.8
= 2.095 N
Assuming Q is the charge on each sphere
F =
Using the values, 2.095 =
We find that Q² =
Thus, Q = 2.289 X 10⁻⁶
The quantity of electrons = Charge / charge of a single electron
=
=1.43 x 10¹³.
They will accelerate away from each other.