Answer: *360 mph*
Explanation:
I am pretty sure that it is 360 mph
3 times 120 = 360
Explanation:
<h3>The beam balance is a device used</h3><h3> for the determination of the mass of </h3><h3>a body under gravitation. It consists </h3><h3>of a beam supported at the centre </h3><h3>by an agate knife edge resting on a</h3><h3> support moving inside a vertical </h3><h3>pillar. The beam carries a light</h3><h3>pointer which moves over a scale.</h3>
Answer:
The length of the pendulum is 2.954 m.
Explanation:
Given;
period of the pendulum, T = 3.45 s
The period of the pendulum oscillation is given as;

where;
L is length of the pendulum
g is acceleration due to gravity on Earth = 9.8 m/s²

Therefore, the length of the pendulum is 2.954 m.
Answer:
t = 110.079 nm
Explanation:-
we know that
for constructive interference in thin film
2nt = (m + (1/2))λ
where, n is refractive index
for minimum thickness m =0
2nt = λ /2
thickness t = λ / 4n
Here
wavelength of light, λ = 612*10^{-9} m
refractive indices = 1.393

t = 110.03 nm