Me with these exercises. i’ll give you 10 points

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid