An airplane is flying horizontally at an altitude of 9000 m. An observer on the ground noticed that when the angle of elevation of the plane is 60 degrees, the angle decreases at the rate of 0.15 radians per second. What is the velocity of the plane in kph?

Q: A rotating light is located 11 feet from a wall. The light completes one rotation every 4 seconds.…

A: Given, Rotating light is located 11 feet from the wall. Light complete one rotation every  4…

Q: A bird 150 ft above the ground flies horizontally at a speed of 11 ft/s. At what rate is the angle…

A: Given Data: The height of the bird above the ground is: y=150 ft The speed of the bird is: x'=11…

Q: You are standing 12 feet away from a balloon launcher that will release a balloon vertically up into…

A:

Q: A Ferris wheel was built for an exposition. It held 2100 people, had diameter of 251 ft, and took 25…

A: Diameter = 251 ftTime = 25 minute