Perhaps you have attended a party where balloons floated. A balloon filled with air does not rise above your head, but a balloon filled with helium gas rises in the air to the end of its string. What does this tell you about the density of helium?

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce

Which levels of government establish and implement educational requirements for minors

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.