Answer:
minimum two photogate
Explanation:
The photogate allows us to activate the measurement of time, so we must place at least two of them, one at the beginning of the movement to measure the initial time and another at the end of the movement to measure the final time, of course we must have measured the distance. This gives us the average speed between the two photocells
For measurements with more changes curves, slopes, one photogate must be placed at the beginning of the curve or slope and another at the end.
Constructive interference is the addition of wave energy as waves interact, producing larger waves and destructive interference is the subtraction of wave energy as waves interact, producing smaller waves.
To find the answer, we need to know about the interference of waves.
<h3>What's the interference of waves?</h3>
- Interference of waves is the result of superposition of waves (transverse or longitudinal) at a certain place.
- Interference is of two types
- Constructive interference
- Constructive interferenceDestructive interference
<h3>How are the constructive and destructive interference formed?</h3>
- When two waves are superimposed within the phase, then constructive interference pattern is formed.
- When two waves are superimposed with out of phase, destructive interference pattern is found.
Thus, we can conclude that the constructive interference is the addition of wave energy and destructive interference is the subtraction of wave energy.
Learn more about the interference of waves here:
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Answer:
Iodine , caesium , strontium ,Plutonium
Explanation:
The isotopes of four main elements which include Iodine , caesium , strontium ,Plutonium contributed mainly to contamination in the Chernobyl accident which involved the release of harmful radioactive radiation into the environment.
The accident occurred in 1986 at Chernobyl , Ukraine as a result of errors made in the design of the reactor and inexperienced hands handling it.
This led to hundreds of death and negative effects on living and the environment around the area.
Answer:
what is this language
Explanation:
could you maybe mark me brainaist
Explanation:
It is given that,
Wavelength of red light,
Power of the laser,
(a) The energy carried by each photon is given by :
(b) Let n is the number of photons emitted by the laser per second. It can be calculated as :
Hence, this is the required solution.