What kind of charge does an object have if it has gained electrons

2 answers:

6 0

It depends on whether the object was charged before the electrons came along.

-- Electrons carry negative charge.

-- If the object was originally neutral, then the extra electrons brought extra negative charge with them, and the object became negatively charged.

-- If the object was positively charged to begin with, then it could be
charged either way after it has gained electrons.

... If there aren't enough electrons to completely cancel out the original
positive charge, then the object will still be positively charged (although
not as much) after it has gained the electrons.

... If there MORE electrons than it takes to completely cancel out the
original positive charge, then the object will be negatively charged after
it has gained the electrons.

... If there are EXACTLY the right number of electrons to completely
cancel out the original positive charge, then the object will be neutral
(no charge) after it has gained the electrons.

Lady bird [3.3K]3 years ago

5 0

Electrons make a negative charge because electrons are negative. But when atoms lose electrons they make a positive charge.

Hope this helped! :)

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A block attached to a spring with an unknown spring constant oscillates with a period of 2.0 s. What is the period if

Zigmanuir [339]

Answer:

a) If the mass is doubled, then the period is increased by $\sqrt{2}$ . Hence, the period of the system is 2.828 seconds.

b) If the mass is halved, then the period is reduced by $\frac{\sqrt{2}}{2}$ . Hence, the period of the system is 1.414 seconds.

c) The period of the system does not depend on amplitude. Hence, the period of the system is 2 seconds.

d) If the spring constant is doubled, then the period is reduced by $\frac{\sqrt{2}}{2}$ . Hence, the period of the system is 1.414 seconds.

Explanation:

The statement is incomplete. We proceed to present the complete statement: A block attached to a spring with unknown spring constant oscillates with a period of 2.00 s. What is the period if a. The mass is doubled? b. The mass is halved? c. The amplitude is doubled? d. The spring constant is doubled?

We have a block-spring system, whose angular frequency ( $\omega$ ) is defined by the following formula: