Yes the answer is correct
You can't answer this question because you aren't giving the specific type of seismic waves. There is an s-wave a p-wave and an l-wave. Those are the basic waves. An S-wave cannot travel through a liquid at all. So, obviously it travels slower than any other seismic wave.
<span>It would travel faster because their speed depends on the density and composition of material that they pass through.</span>
Among the given choices, the ionic compound is D. Magnesium Chloride (<span>MgCl2</span>) where magnesium has a +2 charge while chloride has a -1 charge. Ionic compounds are chemical compounds comprising of ions held together by electrostatic forces named as ionic bonding.
Answer:
D. 130 J
Explanation:
The coefficient of performance for a machine that is being used to cool, is given by:
![COP=\frac{Q_C}{W}=\frac{T_C}{T_H-T_C}](https://tex.z-dn.net/?f=COP%3D%5Cfrac%7BQ_C%7D%7BW%7D%3D%5Cfrac%7BT_C%7D%7BT_H-T_C%7D)
Here
is the heat removed from the cold reservoir, W is the work required, that is, the energy required to remove the heat from the interior of the house,
is the cold temperature and
is the hot temperature. Recall use absolutes temperatures(
). Replacing and solving for W:
![W=Q_c\frac{T_H-T_C}{T_C}\\W=2000J\frac{312.15K-293.15K}{293.15K}\\W=129.63J](https://tex.z-dn.net/?f=W%3DQ_c%5Cfrac%7BT_H-T_C%7D%7BT_C%7D%5C%5CW%3D2000J%5Cfrac%7B312.15K-293.15K%7D%7B293.15K%7D%5C%5CW%3D129.63J)