A dentist's chair makes use of hydraulic system to move patients up and down. Together, the chair and a patient exert a downward force of 2,269 N. The chair is attached to a large piston with an area of 1,221 cm2. To move the chair, a
pump applies force to a small piston with an area of 88.12 cm? What force must be exerted on the small piston to lift
the chair?

the results is a decrease in air temperature with an increase of altitude.

explanation:

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.

you get 2.3=1.21*\frac{a}2 or 4.6=1.21a or a=3.802 (b)

explanation: