A petrol car is parked  feet from a long warehouse (see the…

A petrol car is parked  feet from a long warehouse (see the figure below). The revolving light on top of the car turns at a rate of 30 revolutions per minute. How fast is the light beam moving along the wall when the beam makes an angle of  with the perpendicular from the light to the wall.  

(05.04 HC)Sasha finds her friend Fatima unconscious on the f…

(05.04 HC)Sasha finds her friend Fatima unconscious on the floor of her bedroom. She notices that Fatima has vomited at some point, and when she tries to revive her, Fatima opens her eyes briefly to reveal very small pupils.What should Sasha do first in this situation?