An airplane is flying in a horizontal circle at a
speed of 100 m/s. the 80.0 kg pilot does not
want the centripetal acceleration to exceed
6.92 times free-fall acceleration.
find the minimum radius of the plane’s
path. the acceleration due to gravity is 9.81
m/s2
.

the minimum radius of the plane path would be 147.45 meters.

Explanation:

given speed of the plane = 100 m/s.

and centripetal acceleration ≤ 6.92×g

we know that centripetal acceleration =

therefore

therefore

therefore r ≥ 147.54 meters

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)