James threw a ball vertically upward with a velocity of 41.67ms-1 and after 2 second david threw a ball vertically upward with a velocity of 55.56ms-1.which ball will reach the ground first?

iron would move it is magnetic there is a mag field around the current in the wire

god i hope this !

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m

i think the answer is bone