What is the energy range (in ev) of photons of wavelength 410 nm to 750 nm ? express your answers using two significant figures separated by a comma.

Explanation:

It is given that,

Wavelength 1,

Wavelength 2,

Energy of a photon having wavelength 1 is given by :

Energy of a photon having wavelength 2 is given by :

Hence, this is the required solution.

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards