At one stage during its birth, the protosun had a luminosity of 1000 L_sun and a surface temperature of about 1000 K. At this ti
1 answer:
You might be interested in
The volume of the shell that you described would be:
Now we can rewrite the given integral:
I have attached the picture explaining how we got the formula for the volume.
On the picture, I marked the rectangle. You can of this rectangle as the base, and the height would be the circumference of the cylinder.
Now we can rewrite the given integral:
I have attached the picture explaining how we got the formula for the volume.
On the picture, I marked the rectangle. You can of this rectangle as the base, and the height would be the circumference of the cylinder.
Answer:
D) directly, inversely
Explanation:
The energy of a photon of light is directly proportional to its frequency and inversely proportional to its wavelength.
Frequency is the number of waves that passes through a point per unit of time.
Wavelength is the is the distance between successive crests or troughs on a wave.
Mathematically, frequency is related to wavelength and velocity using;
Energy = h x f
where h is the Planck's constant
f is the frequency
Since c = f ∧
where f is the frequency of the wave
∧ is the wavelength of the wave
c is the speed of light
So;
f = c/∧
Therefore;
E =
From the equation, we see an inverse relationship between E and wavelength and a direct one with frequency.
The equation that relates the voltages and the number of turns in a transformer is
where
is the voltage in the secondary coil, 
is the voltage in the primary coil, and 
and 
are the number of turns on the secondary and primary coils.
Using the numbers, we find the ratio between the number of turns:
where
Using the numbers, we find the ratio between the number of turns: