Describe how a laser-ranging device works

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

1) sections 1, 2, and 10 are significant primarily because they suggest the likelihood that a) widow wycherly is actually the woman in the full-length portrait. b) dr. heidegger wants to include his guests in an experiment with the water. c) dr. heidegger plans to drink some of the water from the vase and needs witnesses. d) the guests will be asked to witness dr. heidegger's transformation when he drinks the water.

An object's buoyant force and weight mean the same thing.a. trueb. false