The possible units for impulse would be:
<span>(N. s)
</span><span>(kg. m/s)</span>
Answer:
The correct answer is violet, blue, green, and red emission lines.
Explanation:
When samples of pure elements are heated they emit a continuous spectrum of electromagnetic radiation. When elements are heated at very high temperatures, the electrons get excited and they jump to consequent orbits and this results in transmission of electromagnetic radiation. The four lines visible in the emission spectrum of hydrogen are violet, blue, green, and red, the most intense of which is at 656 nanometre.
The mass of water is 0.139 kg
Explanation:
The density of a substance is given by the equation
where
is the density
m is the mass of the substance
V is its volume
In this problem we have:
V = 139 mL is the volume of water
The density of water is:
Solving the equation for m, we find its mass:
And converting into kilograms,
Learn more about mass and density:
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The Earth does revolves around the sun in a nearly circular orbit so the answer is T
