Activity =
1. A certain glass has a refractive index of 1.50 when in contact with
air. Calculate
(i)
the angle of refraction in glass when a light ray is incident at
30° with the normal
(ii) at what angle of incidence would one need to shine a beam
of light so as to emerge in glass at 36°

To all the Physics pros, I need help please. Thanks!​

Plss anybody know how to do this? ? i need the answers from a through d

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?