Awhite dwarf, which initially has a radius 3x10 m, is orbiting in a binary system and is accreting mass from its companion. during the accretion process, the mass increases from mo to a mass just beyond the chandrasekhar limit (1.4 mo), and the star collapses to form a neutron star of radius 10 m (a) at the time of collapse, how has the radius of the white dwarf changed from its initial value? (b) how much energy is released in the collapse? (c) a supernova releases about 1044j. compare this value to the one calculated above and comment (d) assuming the collapse produces a supernova, how efficient is the conversion of energy to photons? (e) how is the energy from the collapse released, if it is not all in photons?

change tension

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.

the total distance traveled by the car is

30km + 49km = 79 km .

the components of a vector are the parts of the vectors that are to each other.

b perpendicular