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bonufazy [111]
3 years ago
14

A Danish astronomer who used the diameter of the earth's orbit in his calculation of the speed of light was .

Physics
2 answers:
finlep [7]3 years ago
7 0

Answer:

A danish astronomer who used the diameter of the earths orbit in his calculation of the speed of light was ROEMER.

Explanation:

Andrews [41]3 years ago
3 0
Roemer used the diameter of the earth's orbit in his calculation of the speed of light.
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5 0
3 years ago
A fault in which the hanging wall moves down relative to the footwall is a _____.
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4 0
2 years ago
Read 2 more answers
Mercury is the 80th position in the periodic table how many protons does it have
snow_lady [41]
Errrrr, it has 80.




80 is the correct answer
4 0
3 years ago
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Peter designed a road with a curve of radius 30 m that is banked so that a 950 kg car traveling at 40.0 km/h can round it even i
spayn [35]

Answer:

v = 15.56 m/s

v = 56 km/h

Explanation:

When coefficient of friction is approximately zero then we have

F_ncos\theta = mg

F_n sin\theta = \frac{mv^2}{R}

tan\theta = \frac{v^2}{Rg}

here we know that

v = 40 km/h = 11.11 m/s

R = 30 m

tan\theta = \frac{11.11^2}{30\times 9.81}

\theta = 22.75 degree

now when friction coefficient is 0.30 then we have

F_n cos\theta = mg + F_f sin\theta

F_f cos\theta + F_n sin\theta = \frac{mv^2}{R}

now we have

v = \sqrt{Rg(\frac{\mu + tan\theta}{1 - \mu tan\theta})}

v = \sqrt{30(9.81)(\frac{0.30 + tan22.75}{1 - (0.30) tan22.75})}

v = 15.56 m/s

v = 56 km/h

3 0
2 years ago
What compound makes wood
Luda [366]

Answer:lignin

Explanation:

4 0
3 years ago
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