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Vladimir79 [104]
3 years ago
5

1. Mendeleev arranged the known chemical elements in a table according to

Physics
2 answers:
marin [14]3 years ago
8 0

Answer:

a

Explanation:

Mendleev arranged the known chemical elements in the periodic table according to increasing atomic no.

V125BC [204]3 years ago
3 0

Answer:

the answer is A

Explanation:

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An indicator of average kinetic energy is _____. pressure volume diffusion temperature
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An indicator of average kinetic energy is temperature. Temperature is directly proportional to Kinetic energy of the molecules of an element.

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3 years ago
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Both Newton's Law of Universal Gravitation and Coulomb's Law follow the ...
Romashka [77]

Answer:

inverse square relationship

Explanation:

Both the Newton's law of universal gravitation and coulomb's law have their force inversely proportion to the square of the distance between the bodies.

8 0
2 years ago
Suppose astronomers find an earthlike planet that is twice the size of Earth (that is, its radius is twice the radius of Earth).
JulijaS [17]

Answer:

4 times the mass of Earth

Explanation:

M_1 = Mass of Earth

M_2 = Mass of the other planet

r = Radius of Earth

2r = Radius of the other planet

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F=\frac{GM_1m}{r^2}

The force of gravity on an object on the other planet is

F=\frac{GM_2m}{(2r)^2}

As the forces are equal

\frac{GM_1m}{r^2}=\frac{GM_2m}{(2r)^2}\\\Rightarrow M_1=\frac{M_2}{4}\\\Rightarrow M_2=4M_1

So, the other planet would have 4 times the mass of Earth

6 0
4 years ago
In the metric system, the appropriate unit for weight is the _____. gram newton newton/cm2 gram/cm3
Archy [21]

Answer:

Newton

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It is a vector quantity.

It always acts towards the centre of earth.

The SI unit of Newton.

4 0
4 years ago
A cheetah runs with a constant speed of 8 m/s. How far has the cheetah gone after 25 seconds?
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Multiply 25 * 8 = 200
So the cheetah has gone 200 miles in 25 seconds
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3 years ago
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