Under what conditions can potassium bromide, an ionic compound, conduct electricity? a
when melted or dissolved in water
b
only when it is in crystal form
c
only when melted
d
only when it is dissolved

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i

What are several ways to reduce the effect of friction