Raw or undercooked eggs are most often contaminated with what type(s) of bacteria?
question 6 options:

vibrio vulnificus

clostridium botulinum

salmonella

staphylococcus aureus

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.

First to answer will be the brainliest i need the answer asap