Calculate the mass of an object whose weight is 400 N and acceleration due to gravity is 10 m/s2

weight=mass*gravitational accelaration

we know the weight and the gravitational acceleration

400N=m*10m/s^2

m=400N/10m/2^2

m=40kg

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.

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