<em>20 meters per second</em>
Answer:
Granitic gneiss is characterized by the separation of light- and dark-colored minerals into thin layers or bands.
Explanation:
Intense heat and pressure can also metamorphose granite into a banded rock known as "granite gneiss." This transformation is usually more of a structural change than a mineralogical transformation. Granite gneiss can also form through the metamorphism of sedimentary rocks.
Answer:
i need help pleeeaassseeee
Answer:
B) The ratio of the speed of sound in rod A to the speed of sound in rod B is 1.
Explanation:
Applying Hooke's law,
F = -kx
Where,
F = force
k = spring stiffness
x = length
Element A
F/7k = x
Since, mass = F/A
Ma = 7Mb
Therefore,
7Mb/A*7kb = x
Mb/A*k = x
Element B
F/k = x
Since, mass = F/A
Mb = Mb
Therefore,
Mb/A*kb = x
Ratio of mass of element A and element B
Mb/A*kb : Mb/A*kb
1 : 1
Answer:
23.63 °C
Explanation:
= mass of water = 0.250 kg
= initial temperature of water = 20.0 °C
= Specific heat of water = 4186 J/(kg °C)
= mass of aluminum = 0.400 kg
= initial temperature of aluminum = 26.0 °C
= Specific heat of aluminum = 900 J/(kg °C)
= mass of copper = 0.100 kg
= initial temperature of copper = 100 °C
= Specific heat of copper = 386 J/(kg °C)
= Final temperature of mixture
Using conservation of heat
( - ) + ( - ) + ( - ) = 0
(0.250) (4186) ( - 20) + (0.400) (900) ( - 26) + (0.100) (386) ( - 100) = 0
= 23.63 °C