URGENT!! I need help with these questions ASAP. Please show work and please do not just write random stuff and collect points I have put this same thing up 5 times because of that :/

The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

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