Why are the lunar maria smooth? a. they formed after the heavy bombardment and therefore have fewer craters. b. the lava that formed the maria was thin and runny. c. bombardment of the moon by meteoroids smoothed over any original rough features in the maria. d. the maria are liquid. e. a and b

Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?

The three classes of rocks are sedimentary, metamorphic, and igneous. how are rocks classified into one of these three groups?

Amother used 150 watts of power to raise a 15 newton object in a time interval of 8.0 seconds. through what vertical distance was the object raised ?