A gravel truck is weighed as it arrives at a construction site, and weighed again as it leaves, after dumping some of its gravel. The loaded truck had a mass of (21230 ± 20) kg when it arrived, and (18880 ± 50) kg when it left. What mass of gravel did it dump at the site? Report the mass and its uncertainty with the appropriate number of significant figures. Mass of gravel dumped: 2.35x10³ kg You are correct. Your receipt no. is 152-3948 Absolute uncertainty in the mass of gravel dumped: 70 kg Submit Answer Incorrect. Tries 5/10 Previous Tries Previous Tries What is the relative uncertainty in the mass of the loaded truck when it arrived? 9×10-4 You are correct. Previous Tries Your receipt no. is 152-6821 → What is the relative uncertainty in the mass of gravel dumped? 3x10^-2 Submit Answer Incorrect. Tries 4/10 Previous Tries

A gravel truck is weighed as it arrives at a construction site, and weighed again as it leaves, after dumping some of its gravel. The loaded truck had a mass of (21230 ± 20) kg when it arrived, and (18880 ± 50) kg when it left. What mass of gravel did it dump at the site? Report the mass and its uncertainty with the appropriate number of significant figures. Mass of gravel dumped: 2.35x10³ kg You are correct. Your receipt no. is 152-3948 Absolute uncertainty in the mass of gravel dumped: 70 kg Submit Answer Incorrect. Tries 5/10 Previous Tries Previous Tries What is the relative uncertainty in the mass of the loaded truck when it arrived? 9×10-4 You are correct. Previous Tries Your receipt no. is 152-6821 → What is the relative uncertainty in the mass of gravel dumped? 3x10^-2 Submit Answer Incorrect. Tries 4/10 Previous Tries