Answer
given,
Echo time = t = 1000 s
speed = ?

a) speed of electromagnetic wave

wave travels Venus two time



d = 1.5 x 10¹¹ m
b) now, echo time



t = 5 x 10⁻⁷ s
Answer:
In our everyday life, the deltoids take on most of the work in rotating our arms, but besides that the deltoid muscle also allows us to carry objects at a safe distance from the body. It is also responsible from stopping a dislocation or injury to the humerus when we carry something heavy.
Answer:
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Explanation:
Electron, photon and proton carry momentum .
- De Broglie derived the relationship between the wavelength and momentum of matter. This relationship is known as de Broglie's relationship.
- De Broglie's relationship is given by
...(1) - Momentum is the product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction.
Equation (1) can be written as
where λ is known as de Broglie wavelength and p is momentum , h = Plank’s constant
For photon , the momentum is given by
...(2) where c is the speed is the speed of light .
From equation (1) and (2) we can conclude that electron, photon and proton carry momentum .
Learn about more photon momentum here :
brainly.com/question/13112527
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