Question

You are driving you car and the traffic light ahead turns red. you apply the breaks for 3.0s, and the velocity of the care decrease for +45 m/s. if the cars deceleration has a magnitude of 2.7 m/s^2, what is the cars displacement during this time?

Answer 1

2. A thermometer is placed in a beaker of room temperature water (20oC) and the whole apparatus is placed in a freezer whose temperature is –40oC. Temperatures are taken over 12 hours. Make a sketch of what the graph of this data would look like.

(HINT: What temperature does the beaker start at?___)
(HINT: What temperature does the beaker end at?___)