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daser333 [38]
3 years ago
10

PLEASE HELP TIME SENSITIVE:)

Physics
2 answers:
gladu [14]3 years ago
8 0

it is C....................

zheka24 [161]3 years ago
5 0

Answer:

C on edu

Explanation:

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Two point charges of 30 nC and – 40 nC are held fixed on an x-axis at the origin and
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the Ans is=

mp= 22.10^-6 kg

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3 years ago
A 5.00-a current runs through a 12-gauge copper wire (diameter 2.05 mm) and through a light bulb. copper has 8.5 * 1028 free ele
vlada-n [284]

The correct answer is: 3.125*10^{19} electrons/second

Explanation:

5A current is passing through the copper wire and the light bulb; it means that 5 Coulombs of charge per second is passing through the wire (as current = coulombs/second). To find the electrons per second, the following formula is used:

Electrons per second = n_e=\frac{5}{e}=\frac{5}{ 1.60\cdot 10^{-19}}=3.125*10^{19}

7 0
3 years ago
Read 2 more answers
- A certain mass is suspended at one end of a spring of spring-constant of 32,000gm/s2. The
babunello [35]

Answer: I am pretty sure it is (b) what is the value of mass suspended at the end of the spring.

Explanation:

6 0
2 years ago
An object traveling at constant speed v in a circle of radius R has an acceleration am 5 m/s2. If both R and v are doubled, what
MakcuM [25]

Answer:

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Explanation:

7 0
3 years ago
If an atom has 13 protons and is currently electrically neutral, what must happen to give the same atom a positive charge of +2e
Alex777 [14]

The atom must lose 2 electrons

Explanation:

An atom consists of three types of particles:

- Protons, in the nucleus, with positive electric charge +e

- Neutrons, in the nucleus, with no electric charge

- Electrons, orbiting around the nucleus, with negative electric charge -e

As a result, the net electric charge of an atom is given by the number of protons minus the number of electrons:

Q = #p - #e

For a neutral atom, the number of protons and electrons is the same, so the net charge is zero.

In order for an atom to have a positive charge of +2, it means that there must be 2 protons more than the number of electrons. Since atoms exchange electrons (and not protons), this means that the atom must have "lost" 2 electrons.

In this problem, we have an atom with 13 protons: this means that initially it also has 13 electrons. However, later the atom lost 2 electrons, and as a result, the final charge is +2e.

Learn more about atoms:

brainly.com/question/2757829

#LearnwithBrainly

5 0
3 years ago
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