Then there would be no acceleration if the velocity of the body is 0.
Answer:
The value is
Explanation:
From the question we are told that
The mass of the sphere is m = 18.5 kg
The diameter is
The number of electrons is
The mass of the plastic ball is
The initial acceleration of the ball is
Generally the radius of the sphere is mathematically evaluated as
=>
=>
Generally the force between the ball and the sphere is
Generally this force can also be mathematically represented as
So
Here is the charge removed from the sphere whicn is evaluated as
substituting for e
and is the charge to be removed from the ball
So
Generally the number of electron to be removed from the ball is mathematically represented as
=>
=>
As they move water, ocean currents distribute heat and nutrients around the globe.
(a) The amplitude of the wave is 3 cm.
(b) The speed of the wave is 19.6 m/s
(c) The angular frequency is 653.72 rad/s.
(d) The period of the wave is 0.0096 s.
(e) The wavelength of the wave is 0.392 m.
<h3>
Speed of the wave</h3>
The speed of the wave is calculated as follows;
where;
- μ is mass per unit length = (0.26 kg)/(2 m) = 0.13 kg/m
- T is tension
<h3>Angular frequency</h3>
ω = v/r
ω = v/A
ω = 19.6/0.03
ω = 653.72 rad/s
<h3>Period of the wave</h3>
<h3>Wavelength</h3>
v = fλ
λ = v/f
λ = 19.6/50
λ = 0.392 m
Learn more about wavelength here: brainly.com/question/10728818
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Answer:
The total energy of the object does not change is the true statement.
Explanation:
1. The force applied to the object is perpendicular to the movement so doesn't work on it, assuming the table is at the same height in all of its points the only energy we have to analyze is the kinetic energy , because the table top is frictionless by Newton's first law the velocity (v) doesn't change so the kinetic energy is constant and the total energy too.
2. There's no friction in this situation
3. As stated on 1. because the applied force is perpendicular to the movement of the object, there force doesn't work on it.
4. There are over one force on the object, the weight and the normal force table top exerts to the object.
So the only true statement is 1.