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ankoles [38]
2 years ago
8

Who was the most famous member of the Underground Railroad?

Physics
2 answers:
MArishka [77]2 years ago
7 0

Answer:

Harriet Tubman

Explanation:

qaws [65]2 years ago
7 0

Answer:

Harriet Tubman

Explanation:

She was an abolitionist and fought for women's rights.

Harriet was also the first woman to lead a combat assault.

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The law of conservation of mass applies to all chemical reactions.
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True. No matter can be created nor destroyed in pretty much every aspect of life, especially chemical reactions.
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A uniform horizontal rod of mass Mand length rotates with angular velocity about a vertical axis through its center. Attached to
Lostsunrise [7]

Answer:

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90

Explanation:

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3 years ago
The size (radius) of an oxygen molecule is about 2.0 ×10−10 m. Make a rough estimate of the pressure at which the finite volume
timurjin [86]

Answer:

P = 1 x 10⁸ Pa

Explanation:

given,

radius = 2.0 ×10⁻¹⁰ m

Temperature

T = 300 K

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V = \dfrac{4}{3}\pi (2\times 10^{-10})^3

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we know,

P  V = 1 . k T

k = 1.38  x 10⁻²³ J/K

P(33.51 x 10⁻³⁰) = 1 . (1.38  x 10⁻²³) x 300

P = 1.235 x 10⁸ Pa

for 1 significant figure

P = 1 x 10⁸ Pa

6 0
3 years ago
A 1200-kg car accelerates it’s speed from 4 m/s to 10 m/s in 3 seconds. Find the car average speed , the car acceleration , the
dsp73

Answer:

Given: mass 1200kg

initial velocity: 4m/s

finial velocity: 10 m/s

time 3 sec

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: 4.66m/s2

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A gas heated to millions of degrees would emit
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A gas heated to millions of degrees would emit mostly x-rays.

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