Answer:
d = 2.45 meters
Explanation:
Mass of the ball, m = 0.5 kg
Radius of the circle, r = 0.16 m
The angular speed of the ball around the circle is, 
The attached figure shows the whole scenario. Let 
is the force acting on the ball in tangential direction. The forces will balanced each other at equilibrium.
In horizontal direction,
................(1)
In vertical direction,
...............(2)
From equation (1) and (2) :
Also,
d = 2.45 meters
So, the value of d is 2.45 meters. Hence, this is the required solution.
Radiocarbon saying assume the half life for radioistopes change over time. The half life of C -14 is 5730 years
Answer:
position, speed, direction, and acceleration.
Explanation:
Answer:
the film's minimum thickness to make the reflected light enhanced in brightness is 112.8 nm
Explanation:
Given the data in the question;
wavelength λ = 600 nm
index of refraction = 1.33
so the film's minimum thickness to make the reflected light enhanced in brightness = ?
condition for maxima for reflected light is;
2nt = [ ( 2m + 1 )λ ] / 2
we solve for t
4nt = [ ( 2m + 1 )λ ]
t = [ ( 2m + 1 )λ ] / nt
Now, for minimum thickness m = 1
t = λ / 4n
so we substitute in our values;
t = 600 nm / ( 4 × 1.33 )
t = 600 nm / 5.32
t = 112.78195 ≈ 112.8 nm { one decimal place }
Therefore, the film's minimum thickness to make the reflected light enhanced in brightness is 112.8 nm
