Yes. Only a perpendicular component produces a torque.
        
                    
             
        
        
        
<h2>
Answer: 10615 nm</h2>
Explanation:
This problem can be solved by the Wien's displacement law, which relates the wavelength   where the intensity of the radiation is maximum (also called peak wavelength) with the temperature
 where the intensity of the radiation is maximum (also called peak wavelength) with the temperature  of the black body.
 of the black body.
In other words:
<em>There is an inverse relationship between the wavelength at which the emission peak of a blackbody occurs and its temperature.</em>
Being this expresed as:
 (1)
    (1)
Where:
 is in Kelvin (K)
 is in Kelvin (K)
 is the <u>wavelength of the emission peak</u> in meters (m).
 is the <u>wavelength of the emission peak</u> in meters (m).
 is the <u>Wien constant</u>, whose value is
 is the <u>Wien constant</u>, whose value is 
From this we can deduce that the higher the black body temperature, the shorter the maximum wavelength of emission will be.
Now, let's apply equation (1), finding  :
:
 (2)
   (2)
 
   
Finally:
 This is the peak wavelength for radiation from ice at 273 K, and corresponds to the<u> infrared.</u>
  This is the peak wavelength for radiation from ice at 273 K, and corresponds to the<u> infrared.</u>
 
        
        
        
The two possible angles obtained by using the qudratic equation are; 
θ = 15.10° and θ2 = 73.51°
 = 15.10° and θ2 = 73.51°
Given, speed of water =  = 50ft/s
 = 50ft/s
For the motion along x direction, time period can be calculated as follows:

35 = (50 × cosθ) t
t = 0.64 / cosθ
For the motion in y direction, an equation can be obtained as follows:


 θ)
θ) 
Plugging in the values we get:

 θ)
θ) 
-20 = -32tanθ - 10.304 θ
θ
Upon solving the above quadratic equation, we get,
tanθ = 0.27 , -3.38
Therefore, 
tanθ = 0.27
 = 0.27
θ = 15.10°
 = 15.10° 
and, tanθ = -3.38
 = -3.38
θ = 73.51
 = 73.51
Learn more about quadratic equation here:
brainly.com/question/17177510
#SPJ4
 
        
             
        
        
        
Answer: 3.
Explanation:
The correct answer is a higher amplitude and lower frequency. Since an opera singer is lowering his pitch it means that he is creating higher amplitude and because he is raising his voice for a song with that higher amplitude he is creating lower frequency.