find the percent error in a measurement of the boiling point of bromine if in the laboratory figure is 40.6°C and the accepted value is 59.35°C.

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?