Answer
given,
distance between A and B is equal to 5 m
let x be the distance of loud speaker from the source A
For constructive interference, path difference = mλ
x - (5 - x ) = 0 , for m = 0
2 x - 5 = 0
2 x = 5
x = 2.5 cm
For destructive interference
m = 0
x = 4 , 1 cm
Answer:
Swimming
Explanation:
An increase of flexibility for swimming helps elongate the swimmer to propel faster and glide through the water easier. If the swimmer is inflexible, they won't be able to stretch as far as they should. But, if they were flexible, it'd be easier and much simpler.
Brainlist pls!
Answer:
The wavelength is 3500 nm.
Explanation:
d= 
n= 1
θ= 30°
λ= unknown
Solution:
d sinθ = nλ
λ = 
λ = 3500 nm
Answer:
option b
Explanation:
There is an object pulled inward in an electric field.
We have to find out of the four options given which is true.
a) The object has a neutral charge is false since when electric field pulls the object inward, there is a charge inside.
b) The object has a charge opposite that of the field, this option is correct since there will be an equal and opposite charge created by the object
c) The object has a negative charge will be correct only if the original charge was positive hence wrong
d) The object has a charge the same as that of the field is incorrect since this would be opposite the charge
So only option b is right
Answer:
= 51° West of North
Explanation:
The displacement along the horizontal direction
The displacement along the vertical direction
The magnitude of the displacement is
The direction is
= 51° West of North
