Answer:
A law stating that in fluorescence the wavelength of the emitted radiation is longer than that of the radiation causing it. This is not true in all cases.
Explanation:
Answer:
<h2>117.45 J</h2>
Explanation:
The gravitational potential energy of a body can be found by using the formula
GPE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 10 m/s²
From the question we have
GPE = 2.25 × 10 × 5.22
We have the final answer as
<h3>117.45 J</h3>
Hope this helps you
Answer:

Explanation:
As it is given that flow rate in the pipe is 20 cm^3/s
so we have

at the upper end the area is given as


Also at the other end


now the speed at two ends is given as




now by Bernoulli's theorem we have

now we have

Now we have

Sprry o cant see the words clearly
I think the correct answer from the choices listed above is option B. The very high voltage needed to create a spark across the spark plug is produced at the transformer's secondary winding. <span>The secondary coil is engulfed by a powerful and changing magnetic field. This field induces a current in the coils -- a very high-voltage current.</span>