Water has a specific heat of 4.18 J/g. C. How many joules of heat energy are needed to raise the temperature of 10 grams from 10 degrees C to 80 degrees C? a 1463 J b 2926 J c 2195 J d -2926 J

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

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the correct answer to this question is 2

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.