Answer: The diameter of the circular path is 2.96m
Explanation: centripetal acceleration = tangential speed^2 / radius of the circular path.
Centripetal acceleration = 2.7m/s^2
Tangential speed = 2.0m/s
Radius = 2.0^2 / 2.7 = 4/2.7
= 1.48m
Diameter = radius*2
= 1.48*2 = 2.96m.
Answer:
A eccentricity of zero would be a circle, because if it's zero you only have one point
Explanation:
B. Highly viscous and associated with quiet volcanic eruptions
C. Stays deep within earth because of low viscosity
D. Cannot flow but is limited to fixed areas of hotspot volcanism
Answer: Option (A)
Explanation: Silica rich magma are those in which the magma has more than 65 % of silica content. The higher the silica content, the higher is its viscosity i.e viscosity of a magma is directly proportional to the silica content of magma.
This highly viscous magma inside the volcanoes moves sluggishly and mostly gets concentrated in the vents and seals them. With time, when the pressure exerted by the magma is too high, it creates violent eruptions through the vents.
Thus, the correct answer is option (A).
Answer:
A. Highly viscous and associated with violent eruptions
Explanation:
Most silica rich magma have high viscosity and huge amount of trapped gases within them. As they continue to upwell and expand, the gases causes violent eruptions near Volcanoes. Most granitic/rhyolitic magma are silica rich.
Answer:
-2 m/s²
Explanation:
Acceleration is the rate of change of velocity:
a = Δv / Δt
In other words, it's the slope of the line on a velocity-time graph. The line at t=3 also goes through the points (2, 4) and (4, 0).
a = (4 m/s − 0 m/s) / (2 s − 4 s)
a = -2 m/s²