What system does a dentist chair system use? pneumatic or hydraulic system?

Hydraulic system

Explanation

A system in which a vapor like air carries a force used in a confined area. liquid like a hydraulic system, a pneumatic system uses pressurized air to move amounts. The principal distinction is the mechanism utilized to transfer authority. In Hydraulics oil is utilized to carry control but in pneumatic condensed air is utilized to transfer authority.

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

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