What is the speed of electron having the same kinetic energy with photon speed 0.006c?

Physics

1 answer:

Blababa [14]2 years ago

5 0

Answer:

if gossipy egg overriding successors spatial

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Which phrase most closely characterizes a person's sense of self?

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List the elements of the APA's definition of a psychological disorder. (

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A man pushes his child in a grocery cart. The total mass of the cart and child is 30.0 kg. If the force of friction on the cart

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Newton's second law states that the resultant of the forces applied to an object is equal to the product between the object's mass and its acceleration:
$\sum F = ma$
where in our problem, m is the mass the (child+cart) and a is the acceleration of the system.

We are only concerned about what it happens on the horizontal axis, so there are two forces acting on the cart+child system: the force F of the man pushing it, and the frictional force $F_f$ acting in the opposite direction. So Newton's second law can be rewritten as
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or
$F=ma + F_f$

since the frictional force is 15 N and we want to achieve an acceleration of $a=1.50 m/s^2$ , we can substitute these values to find what is the force the man needs:
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