Lesson 106 Preventing Collision Damage Show-it In the table below, you were to complete each section with characteristics of each safety feature.

What They Do
How They Work
Drawbacks
seatbelts

airbags

crumple zones

Choose from the characteristics of each safety feature listed below. Copy and paste your answer in the appropriate box.

connect passenger to the car to stop forward movement
absorb some of the force of an impact into the structure of the car
provides an opposing force to stop your forward motion
sensors deploy the airbag when certain conditions are met
special materials are designed to crumple in certain ways, but not in the passenger areas
mechanism in car locks in place when a rapid deceleration occurs
may not be able to absorb all of the force, especially in high-speed collisions
can cause minor injuries to passengers
can cause minor injuries to passengers, not helpful in rear-end collisions

Which type of microscope would allow the viewer to see ribosomes inside a cell?

Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so it is no surprise that such clothing has largely replaced thickand heavy old-fashioned coats. (a) consider a jacket made of five layers of 0.1-mm-thick synthetic fabric (k = 0.13 w/m·°c) with 1.5-mm-thick air space (k = 0.026 w/m·°c) between the layers. assuming the inner surface temperature of the jacket to be 28°c and the surface area to be 1.25 m2, determine the rate of heat loss through the jacket when the temperature of the outdoors is 0°c and the heat transfer coefficient at the outer surface is 25 w/m2·°c. (b) what would your response be if the jacket is made of a single layer of 0.5-mm-thick synthetic fabric? what should be the thickness of a wool fabric (k = 0.035 w/m·°c) if the person is to achieve the same level of thermal comfort wearing a thick wool coat instead of a five-layer ski jacket?

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.