Answer:
Subducting convergent boundary
Explanation:
Generally, volcanoes occurs in both divergent and convergent boundaries. But the convergent boundary it occurs is usually associated with subduction.
Divergent boundary, plates move away from each other creating a new crust in the process. The diverging plates creates the space for magma to be squeezed through cracks and fissures. The magma's erupt to form volcanoes. In the Atlantic ocean the spreading of the plates causes an upwelling of magma through the crest of the Atlantic ridges. New oceanic crust are formed through this process. Sometimes the magma eruption forms volcanoes that are higher than the sea level.
Convergent boundary , plates collides with each other . But in the case of volcanoes existence , the collision should be between a denser plate(oceanic plates) and a less dense plates(continental plates) so that subduction can take place. The subducted plates (oceanic plates) creates trenches and get expose to high temperature and pressure as it sinks toward the mantle. The upper mantle rocks melts and migrate to the earth surface forming volcanoes . Over 75% of the volcanoes occur along the pacific basin where convergent boundary is dominant. Pacific ring of fire has one of the most number of volcanoes.
The new speed of the glider is 42.2 m/s.
The new speed of the glider can be calculated using the principle of the law of conservation of energy.
Note: Total energy of the glider before the dive = Total energy of the glider after the dive.
<h3> Formula:</h3>
- mv²/2+mgh = mV²/2 +mgH................ Equation 1
Simplifying the equation above,
make V the subject of the equation.
- V = √[(v²/2)+gh]-gH]............... Equation 2
<h3>Where:</h3>
- V = New speed of the glider
- v = initial speed of the glider
- h = initial height of the glider
- H = New height of the glider
- g = acceleration due to gravity.
From the question,
<h3>Given:</h3>
- v = 40 m/s
- h = 300 meters
- H = 200 meters
- g = 9.8 m/s²
Substitute these values into equation 2.
- V = √[(40²/2)+(9.8×300)-(9.8×200)]
- V = √(800+2940-1960)
- V = √1780
- V = 42.2 m/s.
Hence, The new speed of the glider is 42.2 m/s.
Learn more about speed here: brainly.com/question/4931057
I'm not super sure but, I would think it would be a broom and a stone. When you play curling you push a special 'curling stone' across a icy floor and special sweepers to reduce the fiction within the icy floor.
