The speed of the wave in the rod is
5044m/s
<h3>
What is sound wave?</h3>
A sound wave is the pattern of disruption brought on by the movement of energy moving through a medium as it propagates away from the source of the sound (such as air, water, or any other liquid or solid substance). Pressure waves are produced when an item vibrates, such as a ringing phone, and these waves are known as sound waves. The surrounding medium's particles are disturbed by the pressure wave, and those particles disrupt the particles next to them, and so on. Like ocean waves, the disturbance's pattern causes outward movement in all directions. Usually in all directions and with decreased intensity as it gets further away from the source, the wave transmits the sound energy through the medium.
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The webbing on a duck's foot creates a larger surface area, which means the force of its weight is distributed over more surface area and therefore there is less pressure on the mud and its not likely to be displaced as much, so the foot doesn't get stuck.
Inhibit the flow of electrons because insulators are those substances which are bad conductor of heat and electricity.
The law of definite proportion states that any sample of the compound will always have the same percentage of each element by weight or mass.
There are four elements that made up matter: air, water earth, and fire is not the main idea of dalton's atomic theory.
<h3>What is the law of definite proportion?</h3>
The Law of Definite Proportion defines that the elements that composed a chemical compound are generally arranged in a definite mass ratio regardless of preparation.
The composition of compounds will always be the same by mass using the law of definite proportions. Chemical compounds are made of elements that are present at fixed ratios in terms of their mass.
In the nitrogen dioxide molecule (NO₂), Nitrogen and oxygen atoms are always present in a 1:2 ratio.
According to Dalton's atomic theory, all matter consists of atoms. The atoms of the same element have the same mass and the atoms of different have different masses and compounds are made of atoms of more than one element.
Therefore, for question (1) option (C) and for (2) option (C) is correct.
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Yes, momentum, like velocity, has a direction, and is a vector. (even though it isn't mentioned very often in these high-school problems).
Its direction is the same as the direction of the velocity that it's made of.
But the statement is a bit sloppy . . . It's true that momentum has a direction just like velocity has. But neither of them involves "a force".
Velocity is a direction with a SPEED.
Momentum is a direction with a product of (mass) x (velocity).