Answer:
The frequencies the other string could have are 258.4 Hz and 261.6 Hz.
Explanation:
Given;
beat frequency, Fb = 1.60 Hz
frequency of the first string, F₁ = 260.00 Hz
frequency of the second string, F₂ = ?
Beat frequency is given as;
Fb = F₂ - F₁ or Fb = F₁ - F₂
Fb + F₁ = F₂ or F₂ = F₁ - Fb
1.6 + 260 = F₂ or F₂ = 260 - 1.6
261.6 Hz = F₂ or F₂ = 258.4 Hz
Therefore, the frequencies the other string could have are 258.4 Hz and 261.6 Hz.
Answer:
Dy = - 0.0789 [m]
Explanation:
The vertical component of the vector can be determined with the sine of the angle.
Dy = 0.250*sin(18.4)
Dy = 0.0789 [m]
As the y-component is pointing downwards the component is negative.
Dy = - 0.0789 [m]
There is no question... but the ray would enter the glass with an angle of incidence equal to 56 degrees
So, the power that used by the washing machine is <u>400 Watt</u>.
<h3>Introduction</h3>
Hi ! Here, I will help you to calculate the power generated. <u>Power is work done per unit time</u>. If a person or machine can do a <u>large amount of work in the shortest possible time, it will produce or require a large amount of power</u>. The relationship between power, work, and time is expressed in the equation:
With the following condition :
- P = power that produce or require (Watt)
- W = work that had done (J)
- t = interval of the time (s)
<h3>Problem Solving</h3>
We know that :
- W = work that had done = 7,200 J
- t = interval of the time = 3 minutes = 3 × 60 = 180 s
What was asked :
- P = power that used = ... Watt
Step by step :
<h3>Conclusion :</h3>
So, the power that used by the washing machine is 400 Watt.
Relative density is defined as:
dr = ds / dw
where:
dr: relative density
ds: density of the substance.
dw: density of water.
In this case we have the relative density of oak wood:
dr = 0.64.
We want to find the density of the substance: ds
Therefore we need to know the density of water in the cgs unit system:
dw = 1g / c ^ 3
Finally:
ds = dr * dw
ds = 0.64 * 1 g / cm ^ 3
ds = 0.64 g / c ^ 3
The density of the oak wood in cgs is 0.64 g / cm ^ 3
