The true answer is the choice A
Scientists <span>can predict volcanic eruptions as long as adequate resources are available.Volcanic eruptions are one of the earthly activities which can be predicted by means of adequate resources (w</span><span>arming of the earth's crust, appearance of volcanic lava etc...). By contrast, earthquakes is a dangerous natural </span>disaster<span> that scientists cannot be predicted or mastering the time where it occurs.</span>
For the cement bag we can say as per its force diagram we will have
here we will have
now we will have
now plug in all data
so the pulling force will be 295 N
Heat flux (i) = k.a.temp variation/d
i = 250 J/s or 250w ; d = 2.1 x 10^-3m ; A = 1.9m^2 ; K (Body Fat) = 0.2W/m.Kelvin ; Temp. Var. (Delta T) = ?
-> 250 = 0.2 x 1.9 x deltaT/2.1 x 10^-3
-> 250 x 2.1 x 10^-3 = 0.38 x deltaT
-> 525 x 10^-3 = 38x10^-2 x deltaT
-> deltaT = 525 x 10^-3/ 38 x 10^-2
-> deltaT = 13.81 x 10^(-3 - (-2))
-> deltaT = 13.81 x 10^-1
-> deltaT = 1.381 K
Answer:
Induced
Permanent
Transient
Explanation:
Induced: occurs when a molecule that has a permanent dipole repels another one's molecule's electrons, inducing the one that has a dipole moment in that molecule.
Permanent: occurs when two atoms in a molecule possess a substantially different electronegativity. i.e one atom attracts electrons more than another atom and males it more negative, while the other atom turns more positive.
Transient dipole: induces a dipole in the neighbouring molecule, and then interacts with the original transient dipole.
