The masses of a sample of hydrogen gas and a sample of helium gas are the same: 1 g. the density of hydrogen is 0.00009 g/cm3 and the density of helium is 0.00018 g/cm3. which is an accurate description of their relative volumes? a. the volumes of the hydrogen and helium samples are the same. b. the volume of the hydrogen sample is greater than the volume of the helium sample. c. the volume of the hydrogen sample is smaller than the volume of the helium sample.

If the textbook weighs 19.6 newtons on venus, what is the strength of gravity on venus?

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block