A train moves from rest and stops at a station in 20 minutes. For the first 5 minutes, the trains moves with constant acceleration of 0.08m/s²
Its speed remains constant untill a braking force is exerted to stop st .
The time of braking is 12 minutes. calculate the maximum speed of the train.

What object a collides with object b and bounces back its final momentum is?

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?

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these