V = f * wavelength
as we know electromagnetic wave has speed equal to light, so
3 * 10^8 = f * 1.3
f = 2.3 * 10^8 hertz
f = 230 mega hertz
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.
No I’m French sorryyyyyyy
If drop height increases the bounce height will increase. As the drop height increases so does the gravitational potential energy. (Which can be converted back into kinetic energy) energy lost in air resistance will cause the ball to not bounce very high.
Answer:
The answer would be C
Explanation:
Hope this helps:)....if not then sorry for wasting your time and may God bless you:)