Answer:
The diameter of the axle is 5.08 cm.
Explanation:
Given that,
Force = 800 N
Distance = 78.0 m
Suppose we need to find the diameter of the axle be in order to raise the buckets at a steady 2.00 cm/s when it is turning at 7.5 rpm.
We need to calculate the radius of axle
Using formula of linear velocity
Where, v =velocity
r = radius
=angular velocity
Put the value into the formula
We need to calculate the diameter of axle
Using formula of diameter
Hence, The diameter of the axle is 5.08 cm.
<h2>
Answers:</h2>
The energy of a photon is given by the following formula:
(1)
Where:
is the Planck constant
is the frequency
Now, the frequency has an inverse relation with the wavelength :
(2)
Where is the speed of light in vacuum
Substituting (2) in (1):
(3)
<u>Knowing this, let's begin with the answers:
</u>
<h2>(a) Microwave: 50.00 cm
</h2><h2 />
For
<h2>(b) Visible: 500 nm
</h2><h2 />
For
<h2>(c) X-ray: 0.5 nm
</h2><h2 />
For
As we can see, as the wavelength decreases, the energy increases.
Lightning is full of plasma because of charged particles. When lightning strikes, we know this because of this charged particles. Plasma! I have attached a picture to display what I am trying to convey! Best of luck.