Asilicon (φ = 7.77 × 10-19 j) surface is irradiated with uv radiation with a wavelength of 235 nm. assume an electron was a mass of 9.11 x 10-31 kg. what is the kinetic energy of the emitted electrons?

- 7.767 x 10^-19

Step-by-step explanation:

The attachment below shows the calculations in clear terms.

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

594 square inches

step-by-step explanation:

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