What type of machine is a ramp for wheelchairs

Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l

List four observations that indicate that a chemical reaction may be taking place

Gymnast always perform on padded mats. how does the mats protect the gymnast