Answer: Plate tectonics shift the continents, raise mountains and move the ocean floor while processes not fully understood alter the climate. Such constant change has characterized Earth since its beginning some 4.5 billion years ago. From the outset, heat and gravity shaped the evolution of the planet.
Explanation:
2.a) warm air is lighter than cold air so thats why it's warmer upstairs than downstairs
3.d) Conduction<span> is the process by which heat energy is transmitted through contact with neighboring molecules</span>
4.d) the lamp radiates heat throughout the plants
B. is positive
H20 (l)--> H20 (g)
when that happens, the heat is absorbed into the liquid to change the state of the liquid to gas; therefore, in order to change to a gaseous state, heat must be a reactant. and so enthalpy is increasing
The Density would be 1.84
Answer: The specific heat of the Al is .
Explanation:
As we know that,
where,
= mass of water = 87.4 g
= mass of Al metal = 6.7797 g
= final temperature =
= temperature of water =
= temperature of Al metal =
= specific heat of water =
= specific heat of Al metal = ?
Now put all the given values in equation (1), we get
Therefore, the specific heat of the Al is .