Four students measured the acceleration of gravity. the accepted value for their location is 9.78 m/s2. which student's measurement has the largest percent error?

the answer would actually be student 1 :9.87 m/s2, not 9.78

Bag of bolts weight 29.4n

The radiation of the fire causes the saucepan to heat up. the conduction of the saucepan then to distribute the heat over the saucepan and to give heat to the water. the convection of the water distributing the heat within the water, till all the water is boiling