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Minchanka [31]
3 years ago
9

Which of the following best states the difference between a description and an explanation? A. A description is a statement that

answers the questions where and when, and an explanation is a statement that answers the questions who or what B. A description is a statement that answers the questions who or what, and an explanation is a statement that answers the questions where and when. C. A description is a statement about the characteristics of an object, and an explanation is a statement that clarifies something. D. A description is a statement that clarifies something, and an explanation is a statement about the characteristic of an object.
Physics
1 answer:
rjkz [21]3 years ago
8 0
It is C. A description goes into the details about something, and an explanation is a statement that clarifies something, generally a question.
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charge, q1 =5.00μC, is at the origin, a second charge, q2= -3μC, is on the x-axis 0.800m from the origin. find the electric fiel
IRISSAK [1]

Answer:

Explanation:

Electric field due to charge at origin

= k Q / r²

k is a constant , Q is charge and r is distance

= 9 x 10⁹ x 5 x 10⁻⁶ / .5²

= 180 x 10³ N /C

In vector form

E₁ = 180 x 10³ j

Electric field due to q₂ charge

= 9 x 10⁹ x 3 x 10⁻⁶ /.5² + .8²

= 30.33 x 10³ N / C

It will have negative slope θ with x axis

Tan θ = .5 / √.5² + .8²

= .5 / .94

θ = 28°

E₂ = 30.33 x 10³ cos 28 i - 30.33 x 10³ sin28j

= 26.78 x 10³ i - 14.24 x 10³ j

Total electric field

E = E₁  + E₂

= 180 x 10³ j +26.78 x 10³ i - 14.24 x 10³ j

= 26.78 x 10³ i + 165.76 X 10³ j

magnitude

= √(26.78² + 165.76² ) x 10³ N /C

= 167.8 x 10³  N / C .

3 0
3 years ago
A glider is gliding through the air at a height of 416 meters with a speed of 45.2 m/s. The glider
julia-pushkina [17]

There's not enough information to find an answer.

I think the idea here is that in descending (416 - 278) = 138 meters,
the glider gives up some gravitational potential energy, which
becomes kinetic energy at the lower altitude.  This is all well and
good, but we can't calculate the difference in potential energy
without knowing the mass of the glider.

3 0
3 years ago
Once potential energy is lost on a roller coaster it cannot be gained all the way back true or false
nignag [31]

Answer:

true

Explanation:

because the roller coaster can't work without energy

4 0
3 years ago
The modern periodic table is arranged in order of increasing atomic
tankabanditka [31]
The periodic table is in increasing atomic mass. Hope this helped.
7 0
3 years ago
Read 2 more answers
Calculate the power of convex lens of focal length 20cm​
maxonik [38]

D = 1/f, where D is the power in diopters and f is the focal length in meters.

D=1/20

<u>D=0.05</u>

6 0
3 years ago
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