How much energy (in J) would it take to heat up a 11.6 g sample of copper from 22 °C to 135.°C?

law of conservation of matter

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.

how important do you think an instrument is to the musician who plays it?