Asatellite on a low earth orbit is flying with a speed of 7.65 km/s. the vertical component of the earth's magnetic field is 35.3 μt at the current location of the satellite. what is the maximum possible emf induced between the tips of the solar panels, if the span of the panels is 10.8 m?

2.92 Volts

Explanation:

v = speed of the satellite on a low earth orbit = 7.65 km/s = 7650 m/s

B = earth's magnetic field = 35.3 x 10⁻⁶ T

L = length of panel = 10.8 m

E = Induced emf between the tips of the solar panel

Induced emf between the tips of the solar panel is given as

E = B L v

E = (35.3 x 10⁻⁶) (10.8) (7650)

E = 2.92 Volts

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.