Answer:
Tbh i rlly dont think that many will. Most may succeed in doing so. But i mean come on its 2020 anything can happen.
Explanation:
Answer:
2000J
Explanation:
Given parameters:
Heat of fusion = 80J/g
Mass of substance = 25g
Unknown:
Amount of energy required to melt the given mass = ?
Solution:
To solve this problem, the amount of energy required to melt the substance is given as;
H = m L
m is the mass
L is the heat of fusion
Insert the given parameters and solve;
H = 25 x 80 = 2000J
Explanation:
The given data for case (1) is as follows.
h = 20 cm = 0.2 m
Assuming that a rectangular slab is placed above the pipe and we will calculate the heat transfer as follows.
Q =
where, A = area
L = length
k = thermal conductivity = 0.8 W/m
= change in temperature.
Therefore, putting the given values into the above formula as follows.
Q =
=
= 168 W
For case (2), h = 180 cm = 1.8 m
Therefore, heat lost will be calculated as follows.
Q =
=
= 18.67 W
Thus, we can conclude that 18.67 W heat lost if the pipe was buried at a depth of 180 cm.
Answer:
Ionic bonds are a type of linkage formed from the attraction between oppositely charged ions. The atom that has lost an electron becomes a positively charged ion (called a cation) while the atom that picks up the extra electron becomes a negatively charged ion (called a anion).
Explanation:
I don't exactly know the answer to your question but this is what I know.
Hope it helps:))
If you find it helpful please mark me as Brainliest.
A metal spoon being placed in a boiling pot