What I’m seeing on quizlet says what you’re describing is a ball-and-stick model.
A single fixed pulley is used to lift load by changing the direction of the lifting force. Even though a single fixed pulley has no mechanical gain in that, the effort applied is greater than the load, it is preferred in use since you do not have to pull or push the pulley up and down.
A machine called a barometer is what is used to measure atmospheric pressure :D
Answer:
390
Explanation:
Specific heat capacity= heat/mass × temperature

Remember you convert gram into kilogram and 1 gram =0.001 kilogram
A compound is a substance that consists of 2 or more elements chemically combined in a fixed proportion.
Compounds can be broken down ijt0 simple substances by chemical means but, elements cannot.