Why does light change path when it changes mediums

In the Netherlands there is an annual ice-skating race called the "Tours of the eleven towns" the total distance of the course is 2.00*10 squared km and the record time is 5 hours, 40 minutes, and 37 seconds.

What it the mass of Jupiter?

Which of these is a TRUE statement? A) Sound travels through gases easier than liquids. B) Sound travels through solids easier than liquids. C) Sound sometimes travels easier through gases than solids.

if i cut a body in half, after the application of heat to a body what will be the resultant temperature of the two halves

A meteor is approaching Earth. Which statement about its motion is true? The meteor travels upward relative to Earth. The meteor accelerates. The meteor is out of Earth's gravitational force field. The meteor falls with a constant velocity.

In tae-kwon-do, a hand is slammed down onto a target at a speed of 10.5 m/s and comes to a stop during the 2.13 ms collision. Assume that during the impact the hand is independent of the arm and has a mass of 0.400 kg.

If you looked at the frequently spectrums of two friends saying the word dog, would they look the same or different ?

Which of the following atoms has the smallest radius? The Periodic Table

When do centromeres split

Who passes on dyslexia the mother or the father