Answer:
Island arc
Explanation:
When two oceanic plates share a convergent type of plate boundary, the denser oceanic plate will subduct below the less dense oceanic plate. This will result in the formation of the subduction zone, where the rocks are being pulled down to the mantle. This subduction zone is typically marked by the presence of a narrow depression commonly known as an oceanic trench, that lies just above the zone.
The rocks of the subducting plate undergo partial melting and mix up with the magma that rises upwards towards the surface due to the force exerted by the convection currents. This later gives rise to the formation of volcanoes or a chain of volcanoes which are commonly known as an island arc.
Sound waves travel around the boxed room causing them to bounce off the nearest walls to the end of the room
Answer:

Explanation:
When an amount of energy Q is supplied to a substance of mass m, the temperature of the substance increases by
, according to the equation

where
is the specific heat capacity of the substance.
In this problem, we have:
is the amount of heat supplied to the sample of gold
m = 0.1 kg = 100 g is the mass of the sample
is the specific heat capacity of gold
Solving for
, we find the change in temperature

And since the final temperature was

The initial temperature was

Explanation:
It is given that,
Relativistic Mass of the stone, m₀ = 0.6
Mass, 
Relativistic mass is given by :
.........(1)
Where
c is the speed of light
On rearranging equation (1) we get :



v = 0.61378 c
or
v = 0.6138 c
So, the correct option is (c). Hence, this is the required solution.