aluminum has a density of 2.70 g/ml. Calculate the mass (in grams) of a piece of aluminum having a volume of 401 mL​

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

Boiling water is an example of physical change. true or false

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero