When 3000 grams of water is cooled from 80.0 c to 10.0 c, how much energy is released

877800 Joules of energy is released

Explanation:

mass m = 3000 g

initial temperature = 80 c

Final temperature = 10 c

Change in temperature ΔT = 80 - 10 = 70 c

Heat H = ?

The relationship between these parameters is given by;

H = mcΔT

Where c = specific heat capacity = 4.18 J/gc

H = 3000 * 4.18 * 70 = 877800 Joules

h let me think

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.