Answer:
tex]2.898\times 10^{-7}\ \text{m}[/tex] ultraviolet region
x-ray region
Explanation:
T = Temperature
b = Constant of proportionality =
= Wavelength
From Wein's law we have
The wavelength of the radiation will be and it is in the ultraviolet region.
The wavelength of the radiation will be and it is in the x-ray region.
Answer:
the answer is D. believe me I did it.
Explanation:
Frequency = (speed) / (wavelength)
= (3 x 10⁸ m/s) / (300 m)
= 1 x 10⁶ per sec
= 1 mHz
This frequency is the " 1000 " or " 100 " that's marked
in the middle of your AM radio dial.
If there's an AM station in your city that broadcasts on 1000 kHz
and you tune your radio to it, you're picking up radio waves
that are 300 meters long. (about 0.19 of a mile)
Answer:
θ = 20.9 rad
Explanation:
In a blender after a short period of acceleration the blade is kept at a constant angular velocity, for which we can use the relationship
w = θ / t
θ = w t
if we know the value of the angular velocity we can find the angular position, we must remember that all the angles must be in radians
suppose that the angular velocity is w = 10 rpm, let us reduce to the SI system
w = 10 rpm
= 1,047 rads
let's calculate
θ = 1,047 20
θ = 20.9 rad
The car travels a distance of 200 kilometers for 1.31 × 10⁵ seconds.
We have:
The velocity of the car, v = 15.3 m/s
The distance traveled by car, d = 200 kilometers.
Now, let the time taken to travel the distance be t.
The formula for the speed of an object, when traveled a distance in a particular time, is given as:
Speed = distance / time
v = d / t
Now, d = 200 kilometers = 20 × 10⁴ m
Therefore,
t = d / v
t = 20 × 10⁴ m / 15.3
t = 131071.89 sec
t = 1.31 × 10⁵ sec
The car travel for a time 1.31 × 10⁵ sec.
Learn more about velocity here:
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