Because dark line spectra result from passing white light through ionized gasses and plasmas, which is what the atmosphere of stars are made of. These frequencies are scattered by the star's atmosphere as it leaves the surface (photosphere) of the star, and don't make it to earth.
Given that,
Distance, s= 2.4x 10∧5
Time = 6 hours
Average velocity = ?
Since,
Velocity = Distance / Time
V= 2.4 x 10∧5/ 6 = 40000 km/hr
Velocity will be 40,000 km/hr.
Convert it into m/s.
Velocity = (40,000 * 1000) / (60*60) = 11111.11 m/s
Velocity will be 11,111 m/s approx.
Answer:
Explanation:
As we know that system of two gliders are moving on frictionless track
so momentum conservation is applied on it
So we will have
so we will have
now we know that collision is elastic so we have
so by solving above equations we have
The charge on each the balloon is 100nC or 1.2 × 10^-7 C
Consider two balloons of diameter 0.200m each with a mass of 1.00g hanging apart with 0.0500m separation on the ends of string making angles of 10.0° with the vertical.
The charge on each balloon can be found from
or 100nC
An electric charge is the property of matter where it has more or fewer electrons than protons in its atoms. Electrons carry a negative charge and protons carry a positive charge. The matter is positively charged if it contains more protons than electrons and negatively charged if it contains more electrons than protons.
Learn more about the charge here:
brainly.com/question/14713274
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Answer:
The ratio of the translational rms speed in the ionosphere to the translational rms near the earth's surface is
Explanation:
The relation between the translational rms speed and the temperature is given by :
So,
When the temperature is three times greater.
The ratio of the translational rms speed in the ionosphere to the translational rms near the earth's surface is :
Hence, this is the required solution.