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hoa [83]
3 years ago
7

When an object travels a large distance in a small amount of time, the object's speed is

Physics
1 answer:
Kisachek [45]3 years ago
8 0
If I were to go from the United States to China in one second, that's a large distance in an incredibly short time. I'd say that's pretty fast.

If I were to go from my room to the door of my room in a year, then that would be unbearably slow.
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A double-slit interference pattern is created by two narrow slits spaced 0.21 mm apart. The distance between the first and the f
olga nikolaevna [1]

Answer:

\lambda =533.6 nm

Explanation:

the slits spacing, d = 0.21 mm

distance of screen, D = 61 cm

The condition for minima is given as

dsin(\theta) = \left ( n+\frac{1}{2} \right )\lambda

So, first minima, n = 0

dsin(\theta_1) = \frac{1}{2}\lambda

fifth minima, n = 4

dsin(\theta_5) = \frac{9}{2}\lambda

d(sin(\theta_5) -sin(\theta_1))= 4\lambda

For small angle

d(tan(\theta_5) -tan(\theta_1))= 4\lambda

From the figure:

d(\frac{y_5}{D}-\frac{y_1}{D})= 4\lambda

\frac{d}{D} (y_5-y_1) = 4\lambda

\lambda = \frac{d}{4D} (y_5-y_1)

\lambda = \frac{0.021}{4(61)} (6.2 \times 10^{-3})

\lambda =533.6 nm

4 0
3 years ago
Different between weight and mass​
maxonik [38]
Here easy answer from online

In scientific contexts, mass is the amount of "matter" in an object (though "matter" may be difficult to define), whereas weight is the force exerted on an object by gravity.
8 0
2 years ago
Read 2 more answers
A teacher discusses a scientific theory that has been in place for almost a century. which would present the greatest challenge
Umnica [9.8K]

Answer: The theory might have become Obsolete or Superseded

Explanation:

A theory becomes obsolete or superseded if it becomes inadequate, false or incomplete in how its describes reality. It does not matter if it was once accepted. There are some theories such as Lysenkoism that are currently described as being obsolete because it does not conform to current reality. Another example of a theory that was superseded is the phlogiston theory. It was replaced a different theory of energy.

3 0
3 years ago
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POINTS WILL BE GIVEN!! VVV SIMPLE IF YOURE A GENIUS
insens350 [35]

Answer:

9

Explanation:

hope it helps

6 0
2 years ago
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You walk six blocks east along 12th Street, then three blocks west, then one block east, then six blocks east, then seven blocks
Oksana_A [137]
Displacement depends upon the path taken as it is a vector.

From your problem above we would have a total displacement of;
Defining +x direction as east and -x direction as west

6east-3west+1east+6east-7west

6-3+1+6-7=3 blocks east or + x-direction

So even though they walked a total of 17 blocks it ends up only being 3 blocks total in +xdirection that was travelled by displacement.

Any questions please ask.
5 0
2 years ago
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