An experimenter using a gas thermometer found the pressure at the triple point of water (0.01°c) to be 4.80 × 10⁴ pa and the pressure at the boiling point (100°c) to be 6.50 × 10⁴ pa. assuming that the pressure varies linearly with temperature, use these two data points to find the celsius temperature at which the gas pressure would be zero (that is, find the celsius temperature of absolute zero). pay attention to the number of significant figures. the triple point temperature is an exact number.

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?