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zhuklara [117]
3 years ago
15

Galileo:

Physics
2 answers:
miv72 [106K]3 years ago
7 0

Answer:

D.) all of the above        

Explanation:

Galileo was the first person to point the telescope to sky and observe celestial bodies closely. He discovered craters on moon and four moons of Jupiter.

He also supported heliocentric model of the solar system given by Copernicus. He observed phases of Venus which are similar to phases of moon. These could be understood only if Venus revolved about the sun and not earth.  This was the evidence which disproved geocentric model of Ptolemy and Aristotle.  

Thus, correct option is D.

Natasha2012 [34]3 years ago
6 0
B:supported Copernicus heliocentric theory
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The atomic mass of an element is defined as the weighted average mass of that element’s
marishachu [46]

Answer:

False

Explanation:

Atomic mass (Also called Atomic Weight, although this denomination is incorrect, since the mass is property of the body and the weight depends on the gravity) Mass of an atom corresponding to a certain chemical element). The uma (u) is usually used as a unit of measure. Where u.m.a are acronyms that mean "unit of atomic mass". This unit is also usually called Dalton (Da) in honor of the English chemist John Dalton.

It is equivalent to one twelfth of the mass of the nucleus of the most abundant isotope of carbon, carbon-12. It corresponds roughly to the mass of a proton (or a hydrogen atom). It is abbreviated as "uma", although it can also be found by its English acronym "amu" (Atomic Mass Unit). However, the recommended symbol is simply "u".

<u> The atomic masses of the chemical elements are usually calculated with the weighted average of the masses of the different isotopes of each element taking into account the relative abundance of each of them</u>, which explains the non-correspondence between the atomic mass in umas, of an element, and the number of nucleons that harbors the nucleus of its most common isotope.

4 0
4 years ago
If a ball leaves the ground with a vertical velocity of 5.46 m/s, how long does it take
kifflom [539]

Answer:

0.557 s

Explanation:

Given:

v₀ = 5.46 m/s

v = 0 m/s

a = -9.8 m/s²

Find: t

v = at + v₀

0 m/s = (-9.8 m/s²) t + 5.46 m/s

t = 0.557 s

8 0
4 years ago
Please dont delete this question......
Juli2301 [7.4K]

Answer:

c

Explanation:

8 0
3 years ago
Read 2 more answers
A) what is the light source for a plant growing in the shade?
Ulleksa [173]

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b.) Though artificial lights are not nearly as beneficial as the sun, one could invest in one of them plant growing light thingies, but sun-loving plants might be sad if u do this instead of letting them soak in ePic rays from the sun.

6 0
3 years ago
Much of the pollution in out oceans comes from:
BabaBlast [244]

Answer:

c.) sewage and industrial waste

3 0
3 years ago
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