Physics, 15.10.2019 19:50 cyndiann2002

Sound waves are mechanical waves. which statement is true for this type of wave? select one of the options below as your . a. sound waves transport their energy through a vacuum. b. particles of the medium are displaced completely from their initial positions, moving along with the wave front. c. particles of the medium move perpendicular to the direction of the energy transport. d. sound waves require a medium in order to transport energy.

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By being a Mechanical Wave, which requires a material medium:

D. Sound waves require a medium in order to transport energy

Answer from: yasmin7813

Sound waves require a medium in order to transport energy is the statement among the statements given in the question that is true for this type of wave. The correct option among all the options that are given in the question is the last option or option "D". I hope that this answer comes to your help.

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

Answer from: Quest

Cardiac muscle causes movement in the bone.

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Sound waves are mechanical waves. which statement is true for this type of wave? select one of the o...

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