54. A ray of light is incident on a right circular cylinder of glass having . refractive index μ as shown in the figure, given 0 = π/4. Choose the incorrect statement from the following. D (A) Depending on the value of u, it is possible that light does not emerge from the curved surface of the cylinder. (B) Depending on value of u, it is possible that light does not emerge from the flat surface of the cylinder. from the cylinder at all. (C) Depending on the value of μ, it is possible that light does not emerge (P)None of the above.

= 4bdd655af6baf8ca630f9c91581eb955.pdf 2 1 2 2/2 Expo Fultsche 3. Speed Limits on Highway and Road Curves Scenario: Imagine a car travelling along a highway at 100 km/h [East] on a cold winter day. The car approaches an off ramp so the driver can turn south off the highway but as the car enters the curve it hits a patch of ice. i) Describe the initial motion of the car. ii) If the car begins to skid when it hits the ice, describe the motion of the car as the driver attempts to enter the curve. The faster the car is going initially, the greater the force required to get it to turn from its initial direction to a new direction. iii) Explain why highway designers usually post signs similar to the one below on tight curves and on/off ramps on roads and highways. 65 ↓

The chaos of the pandemic is finally over, and you decide to drive to your friend's house to pick her up, and take her back to your house before going out. She lives 4 miles straight East from you. a. What is the displacement of your journey in miles? b. What is the distance of your journey in miles?

In Exercises 23 and 24, 0opy veotors u, v, and w head to tail as needed to sketoh the indicated veotor. 23. a. u + v с. и - у b. u + v + w d.u - w

Shown is the v vs. t curve. What is the area A of the shaded region under the curve?

A. 590 N B. 1590 N C. 950 N