What does this weather map symbol represent, and what is its meaning? A) Moving front: the area between two air masses where is constantly in motion B) Stationary front: the boundary between two air masses where no air moving o Cold front: the leading edge of a cold air mass is pushing against a warm air mass D) Warm front: the leading edge of a warm air mass is pushing in to replace a cold air mass

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.