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Dahasolnce [82]
3 years ago
12

I NEED HELP PLEASE THANKS :)

Physics
1 answer:
Galina-37 [17]3 years ago
5 0

Explanation:

Diffraction of light involves a change in direction of waves as they pass through an opening or around an obstacle in their path. Water waves have the ability to travel around corners, around obstacles and through openings.

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Explain the reason for following in science. A small stone trapped in your shoe, under your foot, can be very painful.
igor_vitrenko [27]

Answer:

bvvfalbvenvea;vfahvfahvfna.fvn.adnvfad.nvfa;vnfavnfdavnfdanv.VHFvna.vnfad.vnfa;

Explanation:nvfad;bfvf  vf fvdnva,e vdfvf dfvfeva

6 0
2 years ago
If a current­-carrying wire has a cross­-sectional area that gradually becomes smaller along the length of the wire, the drift v
jarptica [38.1K]

Answer:d

Explanation:

Drift velocity is given by

v_d=\frac{I}{n\times Q\times A}

where v_d=drift velocity

I=Current

n=no of electron

Q=charge of Electron

A=cross-section

If area of cross-section decreases gradually then drift velocity will increase because drift velocity is inversely proportional to Area of cross-section

       

6 0
3 years ago
When light reflects from a surface, there is a change in its
alexandr402 [8]
The answer is: none of the above.

Explanation:

When light reflects from a surface, the frequency, wavelength, and speed do not change. They remain the same.
6 0
2 years ago
To model time-variant data, one must create a new entity in an m:n relationship with the original entity.
Ksenya-84 [330]

To model time-variant data, one must create a new entity in an m:n relationship with the original entity, is a False statement.

  • Like the majority of software engineering initiatives, the ER process begins with gathering user requirements. What information must be retained, what questions must be answered, and what business rules must be implemented (For instance, if the manager column in the DEPARTMENT table is the only column, we have simply committed to having one manager for each department.)
  • The end result of the E-R modeling procedure is an E-R diagram that can be roughly mechanically transformed into a set of tables. Tables will represent both entities and relationships; entity tables frequently have a single primary key, but the primary key for relationship tables nearly invariably involves numerous characteristics.

To know more about  entity AND relationship  visit : brainly.com/question/28232864

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6 0
1 year ago
A sports car skids off of a wet mountain road at 48.5 m/s and lands in the river, 110
Oxana [17]

Answer:

  about 4.74 seconds

Explanation:

The time to fall distance d from height h is given by ...

  t = √(2d/g)

  t = √(2·110 m/(9.8 m/s^2)) ≈ 4.74 s

It will take the car about 4.74 seconds to fall 110 meters to the river.

__

We assume the car's speed is horizontal, so does not add or subtract anything to/from the time to fall from the height.

3 0
2 years ago
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