From diagram 2, only half of the cycles of alternating current can pass from the unknown component.
It has to be a diode because a diode can only allow current flow in one direction in circuits.
This is because the sound waves are way faster than the speed of light!
Answer:
so separation between slit is 0.12 mm
Explanation:
given data
slit wide = 0.020 mm
wavelength λ = 589.6 nm
fringe pattern n = 11
to find out
separation between the slits
solution
we know that for maxima we can say
d sinθ = m × λ .........1
and m is mth order maxima
and for central maxima
number of bright fringe is here
N = 2m -1
11 = 2m - 1
m = 6
so here number of maxima on either side of central maxima will be m-1
that is = 5
because we know 6th maxima will be minimized by minima
so
condition for minima is
a sin(θ) = n × λ
now for 1st minima
a sin(θ) = λ
and
= m
d = ma
d = 6 × 0.02
d = 0.12 mm
so separation between slit is 0.12 mm
Answer:
W_net = mg + 2mgh/r
Explanation:
The forces applied in this motion of the bowling ball are both gravitational and centripetal forces.
Now, gravitational force is; F_g = mg
While centripetal force is; F_c = mv²/r
Since we want to express the net force in terms of the variables in the statement and we are not given "v", let's find an expression of v with the variables given.
Now, from Newton's equation of motion, at initial velocity of 0, v² = 2gh.
Thus;
F_c = 2mgh/r
Where;
m is ball mass
r is tube radius
h is fall height
Thus, the net force will be;
F_net = F_g + F_c
Now, Net force would be equal to the net weight that will be read on the scale.
Thus;
W_net = F_net = F_g + F_c
W_net = mg + 2mgh/r