Given :
The frequency of travelling sound = f = 282 Hz
The speed of travelling sound = c = 343 m/s
To Find :
The distance of waves crests
Solution :
∵ wavelength of sound wave =
i.e =
Or, =
∴ = 1.12 m
So, The wavelength of sound wave = = 1.21 m
Thus , The distance of waves crests =wavelength of sound wave = 1.21 m
Hence, The distance of waves crests is 1.21 meters Answer
In order to answer this question, you need to complete this formula :
a = r. w^2
a = 1.5 [(4). (3.14)] ^2
= 236.6304 m^2
Hope this helps
Answer:
weight
Explanation:
weight is the pull of gravity so its a force !!
Answer:
The speed of the electron is 6.79 x 10⁵ m/s
The radius of the circular path is 1.357 x 10⁻⁵ m
Explanation:
Given;
magnetic field, B = 0.285 T
energy of electron, E = 2.10 x 10⁻¹⁹ J
The kinetic energy of the electron is calculated as;
Where;
is the mass of electron = 9.11 x 10⁻³¹ kg
V is the speed of the electron
The radius of the circular path is given by;
where;
q is the charge of the electron = 1.6 x 10⁻¹⁹ C
Answer:
5*10^8Nm
Explanation:
work done= displacement* force
Since the wind blows in the direction that the boats want to travel, all values would be positive.
10*10^3*(5*10^4)=5.00*10^8Nm
