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3 years ago

Worth 20 Points!

Physics

2 answers:

Nezavi [6.7K]3 years ago

7 0

Answer:

<u>Option-(D): </u>The compound is CO₂ and it has two atoms to form the covalent bonds with them, as there are two covalent bonds formed inside the compound which is then termed as the double covalent bond.

Explanation:

Most of the elements share the electrons among themselves in order to get stability and get the optimum level for producing the required compound, as for the CO₂ it shares its electronic configuration on two sides with two Oxygen molecules,O₂. CO₂ has a greater significance in the over all survival and presence of the living beings.

Nana76 [90]3 years ago

3 0

D-double covalent bond

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A body travels 10 meters during the first 5 seconds of its travel, and it travels a total of 30 meters over the first 10 seconds

Inessa05 [86]

Answer:

A body travels 10 meters during the first 5 seconds of its travel,and a total of 30 meters over the first 10 seconds of its travel

20miles / 5sec = 4miles /sec would be the average speed for the last 20 m

Explanation:

The answer is 4 m/s.

In the first 5 seconds, a body travelled 10 meters. In the first 10 seconds of the travel, the body travelled a total of 30 meters, which means that in the last 5 seconds, it travelled 20 meters (30m + 10m).

The relation of speed (v), distance (d), and time (t) can be expressed as:

v = d/t

We need to calculate the speed of the second 5 seconds of the travel:

d = 20 m (total 30 meters - first 10 meters)

t = 5 s (time from t = 5 seconds to t = 10 seconds)

Thus:

v = 20m / 5s = 4 m/s

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3 years ago

Lightning produces a maximum air temperature on the order of 104K, whereas a nuclear explosion produces a temperature on the ord

gtnhenbr [62]

Answer:

tex]2.898\times 10^{-7}\ \text{m}[/tex] ultraviolet region

$2.898\times 10^{-10}\ \text{m}$ x-ray region

Explanation:

T = Temperature

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From Wein's law we have

$\lambda=\dfrac{b}{T}\\\Rightarrow \lambda=\dfrac{2.898\times 10^{-3}}{10^4}\\\Rightarrow \lambda=2.898\times 10^{-7}\ \text{m}$

The wavelength of the radiation will be $2.898\times 10^{-7}\ \text{m}$ and it is in the ultraviolet region.

$T=10^7\ \text{K}$

$\lambda=\dfrac{2.898\times 10^{-3}}{10^7}\\\Rightarrow \lambda=2.898\times 10^{-10}\ \text{m}$

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2 years ago

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3 years ago

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leonid [27]

Explanation:

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The magnetic force on the current-carrying wire is strongest when the current is perpendicular to the magnetic field lines.
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