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Alinara [238K]
3 years ago
11

0. Placer deposits form when ____. (1 point)

Physics
1 answer:
schepotkina [342]3 years ago
3 0
<span>21 is problematic as coal is legally a mineral resource but not geologically a mineral. That wouldn't be too bad if aggregate wasn't also legally a mineral resource but not geologically a mineral. </span>
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A half circle arc with its center at the origin has a linear charge density of λ = 12 nC/m along the arc. The radius of the arc
cestrela7 [59]

Answer:

Explanation:

Given that,

Charge density is  λ = 12 nC/m

And radius 3cm

r=0.03m.

The charge density of a along a circular arc is given as

λ= Q/πr

Then, Q=πrλ

Q=π×0.03×12×10^-9

Q=1.131×10^-9 C

Q=1.131 nC

Then, electric field along x axis is symmetrical and if cancels out

Now, Ey is in the negative direction

Electric field is given as,

Ey=-2kQ/πr²

K is constant =9×10^9Nm²/C²

Ey=-2×9×10^9×1.131×10^-9/(π ×0.03²)

Ey=7200 N/C.

The direction is negative direction of y axis, check attachment for diagram.

b. Electric potential at the origin is given as

V=Ed

d=r=0.03

V=7200×0.03

V=216V

8 0
3 years ago
Zaiden and lisa are testing music effects on plants
USPshnik [31]

Answer:

Anymore information?

Explanation:

5 0
3 years ago
What best explains how two oxygen atoms, each with six valence electrons, can bond with each other?
MAXImum [283]
Well it depends if there negative or positive
5 0
3 years ago
Read 2 more answers
The displacement at any given time of an object is x = 6 sin 98t , where the symbols have their usual meanings. i). Proof that t
Fofino [41]

A simple harmonic motion is defined by the amplitude and angular frequency of the oscillation, which are represented in the given function as 6 units and 98 rad/s respectively.

<h3>General wave equation for simple harmonic motion</h3>

y = A sinωt

where;

  • A is amplitude of the motion
  • ω is angular frequency

<h3>Amplitude of the oscillation</h3>

A = 6 units

<h3>Angular frequency of the wave</h3>

ω = 98 rad/s

A simple harmonic motion is defined by the amplitude and angular frequency of the oscillation. Thus, the wave is executing simple harmonic motion.

Learn more about simple harmonic motion here: brainly.com/question/17315536

#SPJ1

5 0
2 years ago
Calculate the total resistance in a parallel circuit made up of resistances of 2, 3, and 4.
Tamiku [17]

Answer:

<em><u>0</u></em><em><u>.</u></em><em><u>9</u></em><em><u>1</u></em>

Explanation:

as equivalence resistance can be found out using the

1/Req = 1/r1 +1/r2 +1/r3......

now, 1/req= 1/2+1/3+1/4

=6/12+4/12+3/12

=13/12

i.e, req =12/13 =0.91

✌️:)

5 0
3 years ago
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