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Marina86 [1]
3 years ago
15

Why does a gram of gold have the same density of a kilogram of gold

Physics
1 answer:
raketka [301]3 years ago
8 0

A gram of gold's density is g/ml. If the mass is multiplied by 1000 to get to kg, so is ml. This gives kg/liter as the density. For example, if the density was 2g/ml. the density would still be 2kg/l.

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The diagram shows monochromatic light passing through two openings.
rusak2 [61]

Answer:

constructive interference in which waves strengthen each other

Explanation:

Some definitions:

- Costructive interference occurs when two (or more) waves meet each other in phase, so with same displacement at the same point. In such situation, the two waves strengthen each other, and the amplitude of the resultant wave is the sum of the amplitudes of the individual waves

- Destructive interference occurs when two waves meet each other in anti-phase, so with opposite displacement at the same point. In such situation, the two waves cancel each other out, and the amplitude of the resultant wave is the difference of the amplitudes of the individual waves (which means zero if the two waves are identical)

For light waves interfering with each other, 'white' means costructive interference, while 'black' means destructive interference (because black is absence of colors, so this means that the waves cancel each other out). In this problem, we see that point X, Y and X are white, therefore they are point of constructive interference, where the waves strengthen each other.

5 0
3 years ago
Read 2 more answers
5-A baseball is hit with a velocity of 15 m/s at an angle of 40° in the horizontal direction. What are the horizontal and vertic
borishaifa [10]

<u>Answer</u>

B•Horizontal=11.49 m/s  

Vertical=9.64 m/s

Using the concept of a trigonometric ratios,

sin θ  = y/hypotenuse

where y is the vertical component.

sin 40 = y/15

y = 15 × sin 40

  = 9.64 m/s

vertical component = 9.64 m/s

cos θ  = x/hypotenuse

where x is the horizontal component

cos 40 = x/15

x = 15 × cos 15

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Horizontal component = 11.49 m/s

5 0
3 years ago
What is the equation for elastic potential energy?
drek231 [11]

Answer: HOPE THIS HELPED YOU! :D      ;P

Elastic potential energy = force x distance of displacement.

Explanation:

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Answer:

In my mind when I hear the word momentum it comes that it is the product of mass and velocity.

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2 years ago
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