Water flows through a horizontal pipe of cross-sectional area 10.0 cm 2 at a pressure of 0.250 atm with a flow rate is 1.00 l/s. at a valve, the effective cross-sectional area of the pipe is reduced to 5.00 cm 2. what is the pressure at the valve? the density of water is 1000 kg/m 3, and treat it as an ideal incompressible fluid.

asthenosphere and convection

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)

prndulum needs thread, weight clock to time swings