A reflecting will have a mirror on the bottom where the light will bounce off a retracting uses lenses that focus the light
Answer:
The correct answer to the question is
448 m/s
Explanation:
The fundamental frequency is the lowest resonant frequency of a vibration. The nature of a standing wave in a tube with one end closed which is at the the fundamental frequency is to have the node of the wave at the closed end and the wave anti-node at the opened end making a quarter of the wavelength.
Therefore the length of the gas column, 1.40 m = λ/4
So that λ = 4 × 1.4 = 5.6 m
Therefore from v = fλ
Where
f = frequency = 80.o Hz
v = wave speed
we have the wave speed v = 5.6×80 = 448 m/s
Electric power, energy generated through the conversion of other forms of energy, such as mechanical, thermal, or chemical energy.
hope this helps:)sorry if it doesnt
Answer:
Final velocity = 16 m/s
Total distane travelled = 390 m
Explanation:
We can use equation of motion to solve this:
Answer:
Explanation:
Diffraction is observed when a wave is distorted by an obstacle whose dimensions are comparable to the wavelength. The simplest case corresponds to the Fraunhofer diffraction, in which the obstacle is a long, narrow slit, so we can ignore the effects of extremes.
This is a simple case, in which we can use the Fraunhofer single slit diffraction equation:
Where:
Solving for λ:
Replacing the data provided by the problem: