A light source emits visible light of two wavelengths:
1 = 430 nm and l = 510 nm. The source is used in a
double-slit interference experiment in which L = 1.50 m
and d= 0.025 0 mm. Find the separation distance between
the third-order bright fringes.

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

that the claims meet official rules.

don't misinterpret the claims

earth's neighboring galaxy, the andromeda galaxy, is a distance of 2.54×107 light-years from earth. if the lifetime of a human is taken to be 70.0 years, a spaceship would need to achieve some minimum speed min to deliver a living human being to this galaxy.