Answer:
<em>126.01 rad/s^2</em>
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Explanation:
since it starts from rest, initial angular speed ω' = 0 rad/s
angular speed N = 477 rev/min
angular speed in rad/s ω = 
= 
= 49.95 rad/s
angular displacement ∅ = 1.5758 rev
angular displacement in rad/s = 
= 2 x 3.142 x 1.5758 = 9.9 rad
angular acceleration 
= ?
using the equation of angular motion
ω^2 = ω'^2 + 2∅
imputing values, we have
2495 = 19.8
= 2495/19.8 = <em>126.01 rad/s^2</em>
Answer:
because the wavelength of electron beams is much shorter than the wavelength of visible light
<span>As the volume of gold is
Volume = mass/ density
V = </span>0.0512g / 19.31gcm^−3
=0.0026
Volume of gold = L. W. T
0.0026 = 52.22 * 13.22 * T
Thickness T = 0.0026 / 690.43
T= 3.7 * 10^-6
Answer:
This really depends on the size of the ball and if the ball is going straight down or at a diagonal angle
Explanation:
