Answer:
When an object is heated it Expand and when it cools it Contract
Explanation:
One of the effect of heat on matter is expansion. An increase in the temperature of an object causes it to expand and a decrease causes it to contract
Answer:
Explanation:
To determine the final temperature of the sample, we use the specific heat formular as follows:
Finally, the temperature of the aluminium sample has raised 18 K.
Explanation:
Two waves with the same wavelength are in phase if there phase difference is zero or an integral multiple of wavelength. Thus the integer part of any difference expressed in wavelength can be discarded.
The phase difference of 5.4 wavelength is equivalent to is one of 0.4 wavelength thus the interference is an intermediate interference close to fully destructive.
A person usually breathes an average of 13 pints of air every minute.
Lungs aren't the same size. To accommodate the heart, the right lung is larger than the left lung — for humans, that is.
Lungs float on water. ...
Lungs and tennis courts can be the same size. ...
Oxygen only plays a small part in breathing.
