The equinox

a. is when the subsolar point is at one of the tropics.
b. is the longest day of the year at any given place.
c. occurs four times during the year.
d. has 12 hours of day and 12 hours of night for all locations.

The slope of a velocity time graph over any interval of time gives the during that interval

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.