When you look at the acronym ROY G. BIV, you get the wavelengths from longest to shortest. Since Green is in the middle of ROY G. BIV, anything to the right of it would have a shorter wavelength. You can choose in the visible range Blue, Indigo, or Violet.
Answer:
The value is 
Explanation:
From the question we are told that
The angular speed is 
The distance between the minimum and maximum external position is 
Generally the amplitude of the crank shaft is mathematically represented as
=> 
=> 
Generally the maximum speed of the piston is mathematically represented as
=> 
=>
I believe it'd accelerate at 1.25 m/s^2 instead of 1, as it lost 1/4 of its mass (.25), so now it is .25 of 1 faster.
I believe it always acts in the direction opposite to that of the object in motion, so if the force was applied to the left then friction acts in the right
hope that helps
Let the point where A is launched act as the origin, so that the horizontal positions at time <em>t</em> of the respective projectiles are
• A : <em>x</em> = (19.5 m/s) cos(30°) <em>t</em>
• B : <em>x</em> = 62.2 m + (19.5 m/s) cos(60°) <em>t</em>
These positions are the same at the moment one projectile is directly above the other, which happens for time <em>t</em> such that
(19.5 m/s) cos(30°) <em>t</em> = 62.2 m + (19.5 m/s) cos(60°) <em>t</em>
Solve for <em>t</em> :
(19.5 m/s) (cos(30°) - cos(60°)) <em>t</em> = 62.2 m
<em>t</em> = (62.2 m) / ((19.5 m/s) (cos(30°) - cos(60°))
<em>t</em> ≈ 8.71 s
