Can you
a group of pupils have a ray box, a mirror, a glass box and a prism. for each block, describe what happens when the ray is directed at it. use as much scientific knowledge and understanding in your answers as you can. focus on the processes of reflection , if this happens at all and refraction and dispersion.

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

What is a possible result of higher air temperature caused by global warming

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i.e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i.e. include the distance traveled to the first encounter)