Answer:
D) either 436 Hz or 444 Hz
Explanation:
frequency of the tuning fork, F₁ = 440 Hz
frequency of the piano, F₂ = ?
Beat frequency, F = 4 Hz
Beat frequency is given as the difference between the frequency of the two instruments and it is given by;
F = F₂ - F₁ or F = F₁ - F₂
F₂ = F + F₁ or F - F₁ = - F₂
F₂ = 4 Hz + 440 Hz or 4 - 440 = - F₂
F₂ = 444 Hz or - 436 = - F₂
F₂ = 444 Hz or F₂ = 436 Hz
Therefore, the frequency of the piano is 444 Hz or 436 Hz
Answer:
the distance between the two point charges will be reduced by a factor of
Explanation:
The force between two point charges is given by Coulomb's law;
where;
k is Coulomb's constant
Q₁ and Q₂ are two point charges
r is the distance between the two charges
From the equation above, the following relationship between force and distance can be deduced;
F₁r₁² = F₂r₂²
F₁r₁² = (5F₁)r₂²
r₁² = 5r₂²
Thus, the distance between the two point charges will be reduced by a factor of
Answer:
C. Between North and West
Explanation:
Since all have equal masses and the red ball and green ball are moving in south and east direction, the blue ball would most likely be moving between the north and West direction.
That graph is called a Line plot
This answer would be false no they can not do that.