Answer:
Explanation:
Given


distance between the charges is given by 
Electrostatic force between the charges is given by

where k=constant 


as both the charges are of similar nature therefore they repel each other
Steam<span> is water in the gas phase, which is </span>formed<span> when water boils. </span>Steam<span> is invisible; however, "</span>steam<span>" often refers to wet </span>steam<span>, the visible mist or aerosol of water droplets </span>formed<span> as this water vapour condenses.
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Answer:
A) receding from the earth
B) 
Explanation:
- A) receding from the earth
The wavelength went from 434.1nm to 438.6nm, there was an increase in wavelength (also knowecn as redshift due to the doppler efft), this increase is due to the fact that the source that emits the radiation (the distant galaxy) is moving away and therefore the light waves it emits are "stretched", causing us to see a wavelength greater than the original.
- B)

to calculate the relative speed we use the following formula:

where
is the speed of light:
is the wavelength emited by the source, and
is the wavelength measured on earth.
we substitute all the values and do the calculations:

the relative speed is: 
Pearl Ash is an example of an Impure Potassium Carbonate
Answer:
1°C
Explanation:
Water freezes at 0°C, 32°F, and 273°K.
The only temperature warmer than the freezing point is 1°C.