Answer:
Q = c M ΔT where c is the heat capacity and M the mass present
Q2 / Q1 = M2 / M1 since the other factors are the same
M = ρ V where ρ is the density
M = ρ Π (d / 2)^2 where d is the diameter of the sphere
M2 / M1 = (2 D/2)^2 / (D/2)^2 = 4
It will take 4Q heat to heat the second sphere
Which statement is true about this magnet and nails?
The nails are permanent magnets.
Both the magnet and the nails are permanent magnets.
Both the magnet and the nails are temporary magnets.
The nails are temporary magnets.
Answer: The nails are temporary magnets.
Explanation:
A permanent magnet is a magnet that will stay magnetized, while a temporary magnet will lose magnetism.
The magnet here is a permanent magnet, so the "Both the magnet and the nails are temporary magnets." option is incorrect.
The nail is a temporary magnet, so this narrows the options down to our answer;
The nails are temporary magnets.
You can read more here: https://brainly.com/question/2841288
the importance of organs of nervous system
Explanation:
The nervous system transmits signals between the brain and the rest of the body, including internal organs. In this way, the nervous system's activity controls the ability to move, breathe, see, think, and more.
what amount of heat is needed to raise 52.3g of water by 12 c
Answer:
2.73 kJ
Explanation:
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