What is transmitted by all waves? energy mass matter sound

Physics

2 answers:

disa [49]3 years ago

7 0

Answer: energy

Explanation: A wave is a disturbance that transfers energy as it travels through medium.

Vikentia [17]3 years ago

3 0

Answer:

Option (1)

Explanation:

All waves can carry energy, and this energy can be high or low. The waves that carry high energy are commonly known as the high energy waves such as X-rays and gamma rays. On the other hand, those waves that can carry low energy are considered to be low-energy waves such as radio waves.

There are two types of waves that carry energy, namely the electromagnetic wave and the longitudinal waves.

In the case of electromagnetic waves, the energy is transported in the form of vibrations of both electric as well as magnetic field. Whereas, in the case of longitudinal waves such as sound waves, this energy is carried through a medium in which the sound propagates.

Thus, the correct answer is option (1).

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3 years ago

An ideal monatomic gas initially has a temperature of 300 K and a pressure of 5.79 atm. It is to expand from volume 420 cm3 to v

maxonik [38]

Answer:

a) The final pressure is 1.68 atm.

b) The work done by the gas is 305.3 J.

Explanation:

a) The final pressure of an isothermal expansion is given by:

$T = \frac{PV}{nR}$

$T_{i} = T_{f}$

$\frac{P_{i}V_{i}}{nR} = \frac{P_{f}V_{f}}{nR}$

Where:

$P_{i}$ : is the initial pressure = 5.79 atm

$P_{f}$ : is the final pressure =?

$V_{i}$ : is the initial volume = 420 cm³

$V_{f}$ : is the final volume = 1450 cm³

n: is the number of moles of the gas

R: is the gas constant

$P_{f} = \frac{P_{i}V_{i}}{V_{f}} = \frac{5.79 atm*420 cm^{3}}{1450 cm^{3}} = 1.68 atm$

Hence, the final pressure is 1.68 atm.

b) The work done by the isothermal expansion is:

$W = P_{i}V_{i}ln(\frac{V_{f}}{V_{i}}) = 5.79 atm*\frac{101325 Pa}{1 atm}*420 cm^{3}*\frac{1 m^{3}}{(100 cm)^{3}}ln(\frac{1450 cm^{3}}{420 cm^{3}}) = 305.3 J$