<span>When you in inhale, you move your diaphragm down increasing the volume of the cavity in your ribs (its called pleural cavity). This lowers the pressure inside your lungs. When the pressure in your lungs is less than the atmospheric pressure, air draws inwards. Ideal gas law: PV=nRT -> assume nRT are constant for our purposes. then we allow one system to be equal to the same system at different conditions, thus: P1V1=P2V2 (Boyles Law) assume P1=1 atm and V1=1 L (keeping the numbers simple to avoid confusion). when the V is increased (for example say doubled) V2=2 L, then: (1 atm)*(1 L)=P2*(2 L) -> P2=0.5 atm The pressure was decreased. Apply the same logic for exhalation.</span>
Answer:
9900
So when added to the formula it equals to that number just like anything else
Explanation:
beacuse it is
Trust me and when those numbers add it’s equals not unequal
Answer: the body is trained to wake up when the sun rises and get the energy from the sun and sleep and it is night on when the sun is not there. So when a watchman works at night there is no sun first of all to give him any kind of energy and secondly the body clock resists him waking up thus making him tired.
Explanation:
Simple harmonic motion is to and fro motion of object in straight line with small amplitude.
here the force on object must be proportional to displacement from mean position
A) Motion of simple pendulum
Yes it is a simple harmonic motion as it moves to and fro.
B)The motion of ceiling fan
It is not to and fro motion but it is circular motion
C) The spinning of earth on its axis
It is again circular motion on its own axis
D) A bouncing ball on a floor.
It is to and fro motion but it does not follow F = - Kx because here force F = mg
