What type of image is formed by a reflecting telescope

Assume similar data for the motion of the blood in your aorta. estimate how many beats of the heart it will take the blood to get from your heart to your brain. (assume that the distance from your heart to your brain is 30 cm)

What 2 properties are used to classify radiation

Many science fiction movies and tv shows have detected using a nuclear weapon to destroy astroids what problems does plait see with this plan