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3 years ago

Hello !! I am new here. Are you all from USA ?

Physics

2 answers:

Alex787 [66]3 years ago

7 0

Answer:

Explanation:

Anni [7]3 years ago

5 0

Answer:

nope

Explanation:

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Two electrons exert a force of repulsion of 1.2 N on each other. How far apart are they? The elementary charge is 1.602 × 10−19

sergejj [24]

The distance between the charges is 13.86 X 10⁴m

Explanation:

Given:

Force, F = 1.2N

Charge, q₁ = 1.602 X 10⁻¹⁹ C

k = 8.987 X 10⁹ Nm²/C²

Distance, d = ?

According to Coulomb's law:

$F = k\frac{q_1q_2}{r^2} \\\\$

Substituting the value in the formula we get:

$1.2 = 8.987X 10^9 X\frac{1.602 X 10^-^1^9 X 1.602 X 10^1^9}{r^2} \\\\1.2 = \frac{23.06 X 10^9}{r^2} \\\\r^2 = 19.22 X 10^9\\\\r = 13.86 X 10^4m$

Therefore, the distance between the charges is 13.86 X 10⁴m

5 0

3 years ago

I need help ASAP I need to get this right plz plz plz!!!!!

Rina8888 [55]

The atomic nucleus consists of protons and neutrons.

Additional information:

Protons are positively charged particle and neutrons are negatively charged particle.

Hope this will help u...:)

3 0

4 years ago

Read 2 more answers

Paleontologists are experts on the rock cycle true or false

kow [346]

Answer:

I cannot do the laws of physics cuz I hate science but I'm just dance

Explanation:

it's it's true

8 0

3 years ago

A tennis balls in the air and the potential energy increases. At the same time, it’s kinetic energy___because the velocity____

KengaRu [80]

Answer:

Explanation:

More potential energy equals more kinetic

8 0

3 years ago

The acceleration of a particle is given by a = 3t – 4, where a is in meters per second squared and t is in seconds. Determine th

Genrish500 [490]

Answer:

$v=0.04m/s\\$

$s=-28.592m\\$

Explanation:

$a = 3t-4$

$v(t)=\int\limits^t_0 {a(t)} \, dt =3/2*t^{2}-4t+v_0\\$

if t=3.6s and initial velocity, v0, is -5m/s

$v=0.04m/s\\$

$s(t)=\int\limits^t_0 {v(t)} \, dt =1/2*t^{3}-2t^{2}+v_0*t+s_0\\$

if t=3.6s and the initial displacement, s0, is -8m:

$s=-28.592m\\$

5 0

3 years ago

Hello !! I am new here. Are you all from USA ?​

Hello !! I am new here. Are you all from USA ?