A Solid? Because its a substance tightly packed together.
Answer:
by doing rapid shallow breathing and pursed lip breathing
Explanation:
Pressure with in the chest wall and the outside of the lungs remains negative because the intrapleural pressure is always lesser than the intra-alveolar pressure or atmospheric pressure. In general forced expiration leads to an increasing positive pressure in pleura. This happens because the pleura airway gets compressed and the size of airway reduces thereby forcing expiration.
People who are able to resist airway can increase airflow by doing rapid shallow breathing and pursed lip breathing
Answer:
E = hv
E = hf
Explanation:
there are basically two equations for energy in light.
E = hf
where E is the energy of the photons. the unit is joules
h = the planck's constant . the unit is joules second
f = frequency of light. the unit is Hertz
E = hv
E is the energy of a particlar quantum under study.
h = planck,s constant which is usually 6.62607555 × 10^-34 js^-1
v = the frequency of the light.
Answer:
1.492*10^14 electrons
Explanation:
Since we know the mass of each balloon and the acceleration, let’s use the following equation to determine the total force of attraction for each balloon.
F = m * a = 0.012 * 1.9 = 0.0228 N
Gravitational forces are negligible
Charge force = 9 * 10^9 * q * q ÷ 225
= 9 * 10^9 * q^2 ÷ 225 = 0.0228
q^2 = 5.13 ÷ 9 * 10^9
q = 2.387 *10^-5
This is approximately 2.387 *10^-5 coulomb of charge. The charge of one electron is 1.6 * 10^-19 C
To determine the number of electrons, divide the charge by this number.
N =2.387 *10^-5 ÷ 1.6 * 10^-19 = 1.492*10^14 electrons