Write your answer below.
de
think people should use moss
Do you think peop
or their lawns? Why?
instead of grass for their lawns?

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

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?