Draw a ray diagram to explain how to find the focal point in a concave mirror. How would I give a real-life example of the use of light waves passing through the focal point of a concave mirror?

Distinguish between a transverse wave and a longitudinal wave.

During spring semester at mit, residents of the parallel buildings of the east campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. a balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. assume that the stretching of the hose obeys hooke's law with a spring constant of 89.0 n/m. if the hose is stretched by 5.80 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? unitst 3 number-1497 the tolerance is +/-5% open show work click if you would like to show work for this question:

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?