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3 years ago

Which of the following questions could best be answered by the work of Christian Doppler?

Physics

2 answers:

Nina [5.8K]3 years ago

8 0

The answer is B
How quickly are the stars in the Milky Way moving away from Earth

Galina-37 [17]3 years ago

3 0

Answer:

Option B

Explanation:

Given are four options and we must select one out of four which could be best answered by the work of Christian Doppler

Mirrors used inside a camera work on the point that light reflects from a mirror depending on the surface of the mirror and hence images formed

Broadband internet service to rural areas is the speed and reliability of the cables connecting internet to rural.

Maximum mass of a stable white dwarf star depends on the material used for making the car. These three do not depend on doppler effect

But how quickly are stars in the Milky Way moving away from Earth depend on the relative speed of the source and the observer. Hence in this Doppler effect is applied.

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An electric field of 710,000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of

Anni [7]

Answer:

The magnitude of force is $4.26\times 10^{- 6} N$

Solution:

As per the question:

The strength of Electric field due west at a certain point, $\vec{E_{w}} = 710,000 N/C$

Charge, Q = - 6 C

Now, the force acting on the charge Q in the electric field is given by:

$\vec{F} = Q\vec{E_{w}}$

$\vec{F} = -6\times 710,000 = - 4.26\times 10^{- 6} N$

Here, the negative sign indicates that the force acting is opposite in direction.

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3 years ago

Because communication involves two or more people acting in both sender and receiver roles and because their messages are depend

djyliett [7]

Answer:

Transactional process

Explanation:

Because communication involves two or more people acting in both sender and receiver roles and because their messages are dependent on and influenced by those of their partner means that communication is a transactional process i.e. a give and take process.

If the sender relays a message and the receiver does not reply or reply not taking cognizance of the sender's message, communication has not taken place.

For example, if consider this.

Sender: How old are you?

Reciever: My Cat is Red.

The response of the receiver is not in tune with the sender and so communication has not taken place.

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3 years ago

What are the STEPS to using a triple beam balance

Gwar [14]

A good diet. and exersise is the answer

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4 years ago

The 2 substances in the containers below were heated to 50 degrees Celsius; then left to cool to room Temp of 20 degrees Celsius

melisa1 [442]

Answer' RA

Explanation: I need points mb gang

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2 years ago

In a series circuit, an ammeter shows the current leaving the positive end of a cell is 0.5A. What current flows into the negati

Evgesh-ka [11]

Answer:

0.5A as in a series circuit the current is the same everywhere

Explanation:

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3 years ago