Answer:
The wavelength of the radio wave will be 3.271 m
Explanation:
We have given frequency of the radio signal
Speed of the light
We have to find the wavelength of the radio signal
We know that wavelength is given by
So the wavelength of the radio wave will be 3.271 m
Answer:
Explanation:
For elestic collision
v₁ =
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Here u₁ = 0 , u₂ = 22 m/s , m₁ = 77 kg , m₂ = .15 kg , v₁ and v₂ are velocity of goalie and puck after the collision.
v₁ = 0 + ( 2 x .15 x22 )/ 77.15
= .085 m / s
Velocity of goalie will be .085 m/s in the direction of original velocity of ball before collision.
v₂ = (.15 - 77)x 22 / 77.15 +0
= - 21.91 m /s
=Velocity of puck will be - 21.91 m /s in the direction opposite to original velocity of ball before collision.