The change in pitch of a train's horn as it passes while you are
standing still can be described by the Doppler effect, but that
doesn't explain it.
Answer:
1.88 m/s
Explanation:
from elastic collision
KE before collision = KE after collision
To solve this problem we will use Newton's second law in order to obtain the weight of a person. The second law tells us that
F = ma
Where,
m = mass
a = Acceleration
In this particular case, the acceleration is equal to that exerted by the earth through gravitational acceleration, so if the person's weight is 75Kg and the gravity is 
, the weight of the body will be,
When the elevator is at rest this reads 735.75N and 75Kg (The same mass of the person)
Answer:
<u><em>Sirius</em></u>
Explanation:
<u><em>Sirius</em></u> is known s the most brightest star in the sky the second brightest star is <u><em>Canopus</em></u>
The radiation detector that uses detection of flashes of light is a <u>scintillation counter.</u>
<h3>What is a scintillation counter?</h3>
A scintillation counter detects and measures ionizing radiation by using the excitation action of incoming radiation on a scintillating substance and detecting the light pulses that arise.
One of the most critical considerations for anyone who operate with or near radiation is being aware of the amounts of radiation present.
This is generally performed through the use of several types of radiation detectors.
The radiation detector that uses detection of flashes of light is a scintillation counter.
Hence,scintillation counter is the correct answer.
To learn more about the scintillation counter, refer:
brainly.com/question/12763694
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