Explain the necessity of smoothing the output voltage before applying it to a transistor
1 answer:
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The tangential speed of an orbiting object is
Explanation:
The tangential speed of an orbiting object is defined as the ratio between the distance covered in one revolution and the period of revolution:
where
d is the distance covered during one period
T is the orbital period
However, the distance covered during one period is the circumference of the circle:
where
r is the radius of the circle
Substituting the 2nd equation into the 1st equation, we find:
So, this is the final expression for the tangential speed of an orbiting object.
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Answer:
3 Minutes 2 seconds to 22 minutes 16 seconds
Explanation:
Lets assume the Mars to be at the closest distance to Earth. This distance (D) = 54.6 Million km
The signal travels at the speed of light, so speed of the signal (V) = 300000 km/s
So, the time (T) taken by the radio wave to reach Earth from Mars will be,
Thus, T = 182 Sec = 3 Minutes 2 seconds.
The radio wave will take minimum 03 Minutes 02 seconds to reach Earth. Here is should be noted that the distance between the two planets keep on changing as they revolve around the Sun. There will come a point when Mars is farthest from Earth and the distance (D) will be 401 Million km. Then, the time will change to ,
T = 1336.67 sec = 22.27 Minutes.
So the maximum time will be 22 minutes 16 seconds.