Answer:
d=3.76 cm
Explanation:
Given that frequency ,f= 4.55 KHz
Speed of sound = 343 m/s
We know that for sound
C= f λ
Where C is the velocity of sound
f is the frequency
λ is the wavelength
So now by putting the values
C= f λ
343= 4550 λ
λ=7.53 cm
We know that for destructive phase the difference in phase is π so the difference in distance will be λ/2.
So distance ,d= λ/2.
d=7.53/2 cm
d=3.76 cm
So they will move at a distance of 3.76 cm to hear minimum intensity of sound.
Answer:
9.77 joules
Explanation:
Given :
Mass, m of block = 2.2kg
Coefficient of kinetic friction, μ = 0.25
Distance, d = 2m
The workdone :
Using the relation :
μ * mgcosθ * d
g = acceleration due to gravity = 9.8m/s²
0.25 * 2.2 * 9.8 * cos25 * 2
= 9.7699979
= 9.77 J
Answer:
1)limited system of government
2)representative system of government
3)individual rights system of government
Explanation:
the 3 basic concepts of government that the English brought with them to North America are listed in the answer
Answer:
Magnetic field, B = 0.275 T
Explanation:
Given that,
Length of the wire, L = 35 cm = 0.35 m
Current carried in the wire, I = 2.6 A
The segment makes an angle of 53∘ with the direction of the magnetic field, 
Magnetic force, F = 0.2 N
To find,
The magnitude of the magnetic field.
Solution,
The magnetic force acting on the wire is given by :
is the angle between the length of wire and the magnetic field.
B = 0.275 T
Therefore, the magnitude of the magnetic field is 0.275 T. Hence, this is the required solution.
