Thiết kế mạch điện sử dụng công tắc điều khiển Transistor, Transistor điều khiển rơ le, rơ le điều khiển thiết bị điện

the answer is a. at the equator

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

don't remove my answer im trying my best to answer them

explanation:

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)