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Reika [66]
3 years ago
14

According to the three laws of planetary motion, planetary orbits are in the shape of a/an

Physics
1 answer:
Talja [164]3 years ago
8 0
<span>According to the three laws of planetary motion, planetary orbits are in the shape of an "Ellipse"

In short, Your Answer would be Option B

Hope this helps!</span>
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As an object falls freely near the surface of the earth, its velocity?
Vsevolod [243]

If it were possible for an object to fall freely near the surface of the Earth,

-- The direction of its velocity would always be "down"; that is, toward the center of the Earth.

-- The size of its velocity would continually increase, at the rate of 9.8 meters per second for every second it falls.

7 0
3 years ago
Beers of snakes thunderstorms darkness in water are classified as blank phobias
Scrat [10]

I believe all of these would be known as specific phobias.

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On what two properties of a material does its density depend on?
ExtremeBDS [4]
Density of a material depends upon it's mass & volume.

You can calculate it by: Density = Mass / Volume

Hope this helps!
4 0
3 years ago
A useful tool for recoding observations for later analysis is a. This is for science
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What type of recording device? You can have a: camera and voice recorder, these are the only type of recording device I can think of

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5 0
3 years ago
A 14.0 gauge copper wire of diameter 1.628 mmcarries a current of 14.0 mA. Part A: What is the potential difference across a 2.1
FrozenT [24]

Answer:

for copper potential difference is 2.4871 × 10^{-4} V

for silver  potential difference is 2.1256 × 10^{-4} V

Explanation:

given data

diameter D = 1.628 mm = 0.001628 m

current = 14.0 mA = 0.0140 A

length L = 2.15 m

to find out

potential difference

solution

we consider here

resistivity of silver =  1.47 × 10^{-8} ohm-m

resistivity of copper = 1.72 × 10^{-8} ohm-m

so we apply here resistance formula that is

Resistance = ρ × L / A     ...............1

so here area A = πr² = π(0.001628 /2)² = 2.0816 ×  10^{-6} m²

for copper Resistance = ρ × L / A

Resistance = 1.72 × 10^{-8}  × 2.15 / 2.0816 ×  10^{-6}

Resistance = 1.7765 × 10^{-2}  ohm

for silver Resistance = ρ × L / A

Resistance = 1.47 × 10^{-8}  × 2.15 / 2.0816 ×  10^{-6}

Resistance = 1.5183 × 10^{-2}  ohm

so

potential difference  is calculated as

for copper potential difference  = current × resistance

potential difference  = 0.0140 ×1.7765 × 10^{-2}

potential difference  = 2.4871 × 10^{-4} V

for silver  potential difference  = current × resistance

potential difference  =  0.0140 × 1.5183 × 10^{-2}

potential difference  =  2.1256 × 10^{-4} V

7 0
3 years ago
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