Question

The kinetic energy of an electron has been found to be 5.76*10^-15 j . Calculate the wavelength associated with the electron

Answer 1

Answer:

Explanation:

The de Broglie wavelength is the wavelength, λ, associated with a object and is related to its momentum and mass

Answer 2

Explanation:

maximum height can be attained only when the projectile is launched at 90°

threrfore ,

h= u^2/2g

25×2×9.8= u^2

490=u^2

7√10=u

then for range ,

the maximum range occurs at 45°

R = u^2/g

R = 490/9.8

R = 50 m