Answer:
t = 37 x 10⁻⁶ m
Explanation:
given,
Length of glass plate,L = 9.47 cm
wavelength of the light, λ = 585 nm
Number of bands, n = 127 bands
thickness of the hair, t = ?
When the light get refracted from the inner surface of glass the wavelength of the light does not changes.
But when the light is refracted from the outer surface there is a dark band which shows that the wavelength changes.
now,
For the first order of bright band has phase difference = λ/2
for nth order
p = 2 t
t = 37 x 10⁻⁶ m
Hence the thickness of the hair is equal to t = 37 x 10⁻⁶ m
Answer:
a. 3.0 m/s^2
b. 18N
Explanation:
force = mass times acceleration
a.
box 1
24 = 2 times acceleration
24 divided by 2 = acceleration
acceleration = 24 divided by 2
acceleration = 12
box 2
24 = 6 times acceleration
24 divided by 2 = acceleration
acceleration = 24 divided by 6
acceleration = 4
acceleration is averaged
(2+4)/2 = 3
https://courses.lumenlearning.com/suny-osuniversityphysics/chapter/5-5-newtons-third-law/
b.
its saying
in f = ma
if you have the same m of 6
and the a of 3
what is the force?
6 times 3 = 18
18 N
Answer: 22.8 g
Explanation:
1) density = mass / volume ⇒ mass = density × volume
2) density of magnesium = 1.74 g/cm³ (from internet)
3) volume of a block = length × width × depth
volume of the magnesium block = 2.5cm × 3.5 cm × 1.5 cm = 13.125 cm³
4) mass of the magnesium block = 1.74 g/cm³ × 13.125 cm³ = 22.8375 g.
Rounding to 3 significant figures, mass = 22.8 g ← answer
<span>B. This is because P-waves is shorthand for Pressure-waves. Pressure waves compress and stretch along the direction of motion.</span>