8 The forces of volcanic eruptions vary. Some eruptions explode violently,
and others are slow and quiet. Which type of eruption is happening when
Pyroclastic materials are released?
F. a quiet eruption
G. a violent eruption
H. a moderate eruption
I. quiet eruplions alternating with moderate cruptions

Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)

Frank just graduated from eighth grade. assuming exactly four years from now he will graduate from high school how many seconds does he have until his high school graduation