A 50 kg wood block is being dragged at an angle of 180 above horizontal across a wood floor, where the coefficient of friction is 0.5. The dragging force is 75 N. Find the acceleration of the block.

ice to water 1 water to vapour 2 latent heat

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.

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explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right