Answer:
a. ρ
b.
Explanation:
a. To find the density of magnetic field given use the gauss law and the equation:
, , Ω, , ,
ρ
ρ
ρ
ρ
b. The electric field can be find using the equation:
Answer:193.90 m/s
Explanation:
Given
launch angle
launch velocity
Horizontal velocity of the shell after
time of flight of Projectile
i.e. projectile is declining as
but horizontal component of velocity will remain same as there is no opposing force in horizontal direction
Horizontal component of velocity is
F=uR
where U is constant of friction and R=mg
F= mgcos 36
=2.05*10 *.8090
=16.58 N
Answer:
Explanation:
- distance travelled by the sound,
- speed of sound in air,
- difference of time time between the two pulses of sound,
<em>Now, we find the time taken by the sound in air to travel the given distance:</em>
∴<u>Time taken by the sound sound waves in the metal bar to travel the given distance:</u>
<u>The speed of sound in the metallic bar:</u>
What do you mean 40 m ?? I was trying to solve it, but it’s kinda confusing