Answer:
phase difference = 3.21 rad
Explanation:
given data
wall apart = 2.21 m
directly in front = 3.21 m
frequency f = 254 Hz
speed of the sound v = 343 m/s
solution
we get here first wavelength of sound wave that is
wavelength = 343 ÷ 254
wavelength = 1.35 m
so
path difference is
path difference =
path difference = 0.687
path difference = 0.69 m
and
phase difference will be
phase difference =
............1
phase difference =
phase difference = 3.21 rad
Answer:
The acceleration is
Explanation:
Given that,
Speed
Time t = 60.0 sec
We need to calculate the acceleration
Using formula off acceleration
We know that,
Missile goes from rest
So, Initial velocity =0
Put the value into the formula
On right hand side multiplying and dividing by g = 9.8m/s²
Put the value of g
Hence, The acceleration is
Answer:
7.81 m/s
Explanation:
Given,
initial speed, u = 10.2 m/s
angle of inclination, θ = 40°
time, t = 2.12 s
Horizontal component of the velocity:
In projectile motion horizontal component of the velocity remain same at every point because there is no acceleration.
So, Velocity at the Pinnacle is equal to 7.81 m/s