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DiKsa [7]
3 years ago
12

Each color is visible light corresponds to a different?

Physics
2 answers:
AnnyKZ [126]3 years ago
8 0
Wavelengths and frequecy
storchak [24]3 years ago
4 0
Its got to be A hope this helps

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Two ice skaters, paula and ricardo, push off from each other. ricardo weighs more than paula. part a which skater, if either, ha
ahrayia [7]

Apply the law of conservation of momentum for this situation. The law states that the momentum of a system is constant (in absence of external forces acting on it).

The 'system' in this case are the two skaters. There is no external force on the skaters. Suppose the skaters are initially standing still. The momentum in the system is 0. This value will need to remain constant, even after the mutual push (which is a set of forces from <em>inside</em> the system). So we know that

(total momentum before) = (total momentum after)

Indexing the masses and velocities by the first letter of the skaters' names:

0 = m_P\vec v_P+m_R\vec v_R\\m_P\vec v_P = m_R(-\vec v_R)

From the last row, you can see that the skaters will have momentum of same magnitude but opposite direction, after the push off. That answers the first question: neither will have a greater momentum (both will have one of same magnitude).

Since Ricardo is heavier, from the above equality it follows that

m_R>m_P\implies|\vec v_R|

In words, Paula has the greater speed, after the push-off.

7 0
3 years ago
In order for work to be done, a force must cause movement true or false
Darya [45]
True! In order for work to be done, a force must cause movement. 
7 0
3 years ago
In this problem, you will practice applying this formula to several situations involving angular acceleration. in all of these s
MatroZZZ [7]
<span>A- 2*[(m1 - m2)/(m1 + m2)]*g/L The rotation is in the counterclockwise direction and the angular acceleration is positive. B- 2*[(m1 - m2)/(m1+ m2 +mbar/3)]*g/L The rotation is in the counterclockwise direction and the angular acceleration is positive.</span>
6 0
3 years ago
Which is a measure of force? A. distance B. mass C. volume D. weight
Deffense [45]

Answer:

B. Mass

Explanation:

mass Includes newton which is a measure of force

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3 years ago
If the strength of the magnetic field at B is 20 units, the strength of the magnetic field at A is _____.
xz_007 [3.2K]
The answer is A = 20 units
8 0
3 years ago
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