Why can't all people use the exact same corrective glasses to help them see?
A) The lenses in people's eyes can reflect light by different amounts.
B) The retinas in people's eyes can reflect light by different amounts.
C) The lenses in people's eyes can refract light by different amounts.
D) The retinas in people's eyes can refract light by different amounts.

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping

Erosion of the beach is normally a slow process. however, in certain situations, large chunks of shore may wash out to sea. what could cause this to happen?

Ineed the answer to question 1 , i’m desperate