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4 years ago

How do we convert grams to kilograms

Physics

1 answer:

lilavasa [31]4 years ago

3 0

Multiply by the fraction (1 kg/1000 gm).

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The difference between a molecule and a compound is that a compound is made up of atoms from . A chemical change creates a new .

ra1l [238]

Explanation:

A molecule can be made up from same or different elements. Whereas a compound will have different atoms.

Therefore, the difference between a molecule and a compound is that a compound is made up of atoms from different elements.

For example, $O_{2}$ is a molecule and NaCl is a compound.

And a chemical change creates a new substance.

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3 years ago

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What is in the blank?

Vika [28.1K]

This is in the thermosphere which is at an altitude of 85-520km

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3 years ago

Time dilation: A missile moves with speed 6.5-10 m/s with respect to an observer on the ground. How long will it take the missil

tatyana61 [14]

Answer:

The time taken by missile's clock is $4.6\times 10^{6} s$

Solution:

As per the question:

Speed of the missile, $v_{m = 6.5\times 10^{3}} m/s$

Now,

If 'T' be the time of the frame at rest then the dilated time as per the question is given as:

T' = T + 1

Now, using the time dilation eqn:

$T' = \frac{T}{\sqrt{1 + (\frac{v_{m}}{c})^{2}}}$

$\frac{T'}{T} = \frac{1}{\sqrt{1 + (\frac{v_{m}}{c})^{2}}}$

$\frac{T + 1}{T} = \frac{1}{\sqrt{1 + (\frac{v_{m}}{c})^{2}}}$

$1 + \frac{1}{T} = \frac{1}{\sqrt{1 + (\frac{v_{m}}{c})^{2}}}$

$1 + \frac{1}{T} = (1 + (\frac{v_{m}}{c})^{2})^{- \frac{1}{2}}$ (1)

Using binomial theorem in the above eqn:

We know that:

$(1 + x)^{a} = 1 + ax$

Thus eqn (1) becomes:

$1 + \frac{1}{T} = 1 - \frac{- 1}{2}.\frac{v_{m}^{2}}{c^{2}}$

$T = \frac{2c^{2}}{v_{m}^{2}}$

Now, putting appropriate values in the above eqn:

$T = \frac{2(3\times 10^{8})^{2}}{(6.5\times 10^{3})^{2}}$

$T = 4.6\times 10^{6} s$

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3 years ago

Which phrase best describes the outer planets?

pav-90 [236]

Answer:

Astronomers have divided the eight planets of our solar system into the inner planets and the outer planets. The 4 inner planets are the closest to the Sun, and the outer planets are the other four – Jupiter, Saturn, Uranus, and Neptune. The outer planets are also called the Jovian planets or gas giants.

Explanation:

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3 years ago

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What is the kinetic energy of a jogger with a mass of 65 kg traveling at a velocity of 2.5 m/s?

scZoUnD [109]

KE=203.125 J !!!!!!!!!

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3 years ago

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