We have particle A which is curved to the left-hand side.
Particles B is slowly bent to the right side.
Particle C curves towards the right side.
Particle D is perpendicularly straight.
The particle E bends towards the right side.
Therefore D is showing none deflection then it is the part D which is neutral
Density is a physical property that describes the relationship between mass and volume. Density is the amount of matter in a given space, or volume.
Answer:
A) 443 Hz
B) She has to loosen the string
Explanation:
A) Given;
Beat frequency;f_beat = 3 Hz
Frequency of electronically generated tone; f_e = 440 Hz
We know that formula for beat frequency is given by;
f_beat = |f1 - f2|
Now, applying it to this question, we have;
f_beat = f_v - f_e
Where f_v is frequency of the note played by the violinist
Thus, plugging in the relevant values;
3 = f_v - 440
f_v = 3 + 440
f_v = 443 Hz
B) In the concept of wave travelling in a string, the frequency is directly proportional to the square root of the force acting on the string.
Now, for the violinist to get her violin perfectly tuned to concert A from what it was when she heard the 3-Hz beats, the beat frequency will have to be zero. Which means it has to decrease by 3 Hz. For it to decrease, it means that the force applied has to decrease as we have seen that frequency is directly proportional to the square root of the force acting on the string.
Thus, she would have to loosen the string.
This quantity ρ is known as the density<span> , which is usually defined as the mass per unit volume: ρ = m/V. The volume units milliliter (mL) and cubic centimeter (cm</span>3<span>) are almost identical and are commonly used interchangeably. The general meaning of </span>density<span> is the amount of anything per unit volume.</span>
Rain forest: most; tundra: least
