The temperature in a room is 56 degrees celcius . what would the velocity of a sound wave be at this temperature ?

If the speed of a particle triples ,by what factor does its kinetic energy increase?

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is