A. At Six Flags New England in Agawam, Massachusetts, a ride called the Cyclone is a giant roller
coaster that ascends a 34.1-m hill and then drops 21.9m before ascending the next hill. The
train cars have a mass of 4727 kg.
How much work is required to get an empty train of cars from the ground to the top
of the first hill?
b.
What power must be generated to bring the train to the top of the first hill in 30.0
sec?
How much P. E. is converted to K. E. from the top of the first hill to the bottom of
the 21.9-m drop?
C.

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

Much of the information taught in earth-space science would not be available if it weren’t for our remote sensing abilities. explain two ways our remote sensing strategies contribute to our knowledge of these topics.

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.