Free points giveaway

lol ")

The de broglie relation λ=h/p can be rewritten in terms of the wave number k as p=kℏ. recall that wave number is defined by k=2π/λ. using the fact that λ=v/f, find the wave numbers k1 and k2 corresponding to frequencies f1 and f2. express your answer as two expressions

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.