Jean-Luc likes to run errands on Saturday mornings. He leaves his house at 10:00 a. m. and first heads to the post office to mail a package. Then, he heads to the pet store to buy food for his goldfish. • a. What is the distance of this trip?

• b. What is his displacement when he is at the post office?

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?

Which of the following best describes the circuit shown below?