A 13,500 kg railroad freight car travels on a level track at a velocity of 4.5 m/s. It collides and couples with (sticks to) a 25,000 kg second car, initially at rest ( which means its not moving, v = 0 m/s) and with brakes released. What is the velocity of the two cars after their inelastic collision?

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

nb

explanation:

kj

d. changes in climate and historical records

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