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Cloud [144]
3 years ago
5

How many planets are there in the Milkyway?

Physics
1 answer:
BabaBlast [244]3 years ago
3 0

Answer:

here you go

Explanation:

100 billion planets

brainliest pls

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Which of the following experiments with best fall under the field of optics
Soloha48 [4]

Answer:

a

Explanation:

because your trying to decide

7 0
3 years ago
A cylinder with radius R spins around its axis with an angular speed ω. On its inner surface, there lies a small block; the coef
ValentinkaMS [17]

Answer:

A. Mrŵ² = ųMg

Ŵ = (ųg/r)^½

B.

Ŵ =[ (g /r)* tan á]^½

Explanation:

T.v.= centrepetal force = mrŵ²

Where m = mass of block,

r = radius

Ŵ = angular momentum

On a horizontal axial banking frictional force supplies the Pentecostal force is numerically equal.

So there for

Mrŵ² = ųMg

Ŵ = (ųg/r)^½

g = Gravitational pull

ų = coefficient of friction.

B. The net external force equals the horizontal centerepital force if the angle à is ideal for the speed and radius then friction becomes negligible

So therefore

N *(sin á) = mrŵ² .....equ 1

Since the car does not slide the net vertical forces must be equal and opposite so therefore

N*(cos á) = mg.....equ 2

Where N is the reaction force of the car on the surface.

Equ 2 becomes N = mg/cos á

Substituting N into equation 1

mg*(sin á /cos á) =mrŵ²

Tan á = rŵ²/g

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8 0
3 years ago
A _______________ is a diagram that shows the relationship of one variable to another.
slega [8]

Answer:

A _______________ is a diagram that shows the relationship of one variable to another.

Explanation:

4 0
3 years ago
Cations are formed by gaining protons losing protons gaining electrons losing electrons
krek1111 [17]
Cations are formed by losing electrons

Cations are basically positive ions


It's not lose or gain protons because atoms can't lose or gain protons. The protons don't move.
It's not gain electrons because electrons are negative. More electrons=more negative

If you can't remember cations are positive
CAT-ions are PAWS-itively charged
7 0
3 years ago
What do you mean by kinetic energy and potential energy ?
Verizon [17]

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  • Where KE is the kinetic energy, m is the body’s mass, and v is the body’s velocity.

  • Potential energy is the stored energy in any object or system by virtue of its position or arrangement of parts..

  • Formula - W = mgh

Where,

. m is the mass in kilograms

. g is the acceleration due to gravity

. h is the height in meters

Hope it helpz~ uh..

4 0
2 years ago
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