Ultrasound is sound or vibrations, having an ultrasonic frequency, particularly as used in medical imaging. Ultrasound is more commonly used in medical terminology than in industry. Infrasound is sound waves with frequencies below the lower limit of human audibility.
Because of its chemical structure.
Answer:
1.1 g Na2SO4
Explanation:
First convert mL to L. Then multiply by the Molarity to get moles, then multiply by the molar mass to get grams.
15 mL x 1 L x 0.50 mol Na2SO4 x 142 g = 1.1 g
10^3 mL 1 L mol Na2SO4
Answer: decreases
The temperature of a gas decreases when the pressure decreases at constant volume
Explanation:
The statement of Pressure Law states that the pressure of a given mass of gas is directly proportional to its absolute temperature provided the volume is kept constant.
Mathematically, it is expressed as
P α T
P = kT
or P/T = k
Thus, the direct proportionality of temperature and pressure makes temperature of a gas decreases when the pressure decreases and increases when pressure increases.
Answer:
Electrons accelerated to high velocities travel in straight lines through an empty cathode ray tube and strike the glass wall of the tube, causing excited atoms to fluoresce or glow.
Explanation:
