The apparent change of frequency of a source of sound due to it me relative motion between the sound and a listener is called the

Answers

Answer 1
Answer: That's the "Doppler effect". It's also the operating principle
behind police speed radar.

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A moving ball has what energy kinetic energy or elastic energy or both

Answers

A moving ball primarily has kinetic energy (motion).

Elastic energy comes into effect if the ball is compressed or stretched, like in the case of a bouncing ball.

Theoretical problems usually have perfect pr controlled conditions, but a moving ball in real life would be compressed or changing with its contact with the ground.

If you want more help or could provide more context, feel free to ask.

If this is a question on a test or quiz and its asking what type of energy a 'moving' ball has, generally they want you to think about what causes the movement (in this case, kinetic), because there is always a lot of other energy being transferred and happening at the same time (i.e., thermal, sound).

1 C is the total charge associated with 6.242 x 10¹⁸ electrons. How many electrons will pass through the cross section of a conductor if 50 μA of current flows for 5 s?

Answers

Answer:

Q = I t = 5.00E-8 C/s * 5.0 s = 2.5E-7 C   total charge due to 50 μC for 5 sec

6.242E18 electrons / C * 2.5E-7 C = 1.6E12 electrons

       

Heliocentric means… sun-centered. moon-centered. Earth-centered. galaxy-centered.

Answers

Heliocentric means aun-centered

Answer:

sun centered

Explanation:

Which air mass would produce warm, dry weather in the summer

Answers

Answer - Continental Tropical

Reason - Reason for answer is it has hot air mass cycling during the summer with low dew point to hot and high in afternoon

Continental Tropical

  • Continental air masses form over land and are usually dry. Continental air masses are characterized by dry air near the surface while maritime air masses are moist.

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Answers

Answer:

Stimulants are a group of drugs that result in increased activity in the body. Sometimes referred to as “uppers,” these drugs are frequently abused due to their performance-enhancing and euphoric effects. Generally, those who abuse stimulants experience heightened energy levels and enhanced focus.

Stimulants speed up mental and physical processes, which can produce desirable effects in the short-term by increasing levels of dopamine in the brain. While users may feel great due to the short-term effects of stimulants, long-term abuse of these drugs can have significant consequences, which is why it is so important for those who abuse the drugs to get help as quickly as possible.

Explanation:

hope this works

I love how they said random stuff and than a response about drugs

You are running late to meet a friend at the movies. She calls to ask where you are. What would you be describing if you told her you were 20 meters away from the movie theatre at that moment?A. your length
B. your vector
C. your position
D. your displacement

Answers

The correct answer is actually C. your position

JUST TOOK THE QUIZ AND GOT IT CORRECT

you would be describing your length