a student is watching a simulation of a rocket's flight. she notices that the rocket is dropping devices in flight. what are these "devices" most likely to be?
a. trajectories
b. satellites
c. used up rocket stages
d. exhaust from the combustion reactions

How many valence electrons are in atom of radon?

Which statement explains which component is likely to be more powerful in explaining a scientific phenomenon? a) component c, because a theory is often passed on possibility and not certainty b) component d, because a hypothesis is often based on possibility not certainty c) component c, because the ability to explain several occurrences in the natural world is a characteristic of a hypothesis d) component d, because the ability to explain several occurrences in the natural world is a characteristic of a theory

Which can be observed only in a microscopic view? a) structure of a muscle cell b) shape of a soybean plant c) foam insulation d) x-ray of a knee joint