An airplane is flying at 80 kilometers per hour when a strong tail wind, traveling in the same direction at 5 kilometers per hour, hits the airplane. How can the net force acting on the airplane be calculated? A. add the forces
B. subtract the forces
C. multiply the forces
D. divide the forces

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?