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Medicare. The annual expenditures for Medicare (in billions of dollars) by the U.S. government for selected years since 1980 are shown in Table 5. Let x represent years since 1980
(A) Find an exponential regression model for the data. Estimate (to the nearest billion) the annual expenditures in 2017.
(B) When will the annual expenditures reach one trillion dollars?
A fluid at a pressure of 3 bar, and with specific volume of 0.18 m^3/kg, contained in a cylinder behind a piston expands reversibly to a pressure of 0.6 bar according to a law, Pv^2=C, where C is a constant. Calculate the work done by the fluid on th..
a large fireplace in a ski lodge has a glass firescreen which covers a vertical opening in the fireplace. the opening
1 kg of a gas in a piston-cylinder assembly undergoes a Carnot power cycle for which the isothermal expansion occurs at 800 K. The change in specific entropy of the gas during the isothermal compression, which occurs at 400 K is -25 kJ/kg. K.
by itself the 2500-kg pickup truck executes a 0-100 kmh acceleration run in 10 s along a level road. what would be the
In a sealed piston cylinder device Nitrogen gas executes a CARNOT POWER CYCLE. The source and sink temperatures are 999 K and 333 K. Minimum pressure in the cycle is 20 kPa. The minimum volume is (1/40) of the maximum volume in the cycle. The cycle w..
a 5.0 kg steel block is resting on a horizontal table. the coefficient of static friction us is 0.75 and the uk is
If a slider block C is fixed to the disk that has a constant counter clockwise angular velocity of 4 rad/sec, determine the angular velocity and angular acceleration of the slotted arm AB at the instant shown.
a 5.70kg block hangs from a spring with spring constant 1900nm . the block is pulled down 6.80 cm from the equilibrium
the rods ab and cd each have a 30-mm diameter and are 1m long. the modulus of the rods is 28 gpa. the rods are
air as an idea gas is compressed from a state where the pressure is 0.1 mpa and the temperature is 27oc to a state
water at the rate of 60 kghour is heated from 35oc to 70oc by an oil with specific heat of 1.9kjkgk. the fluids are
The available bandwidth in a cluster is 1.25MHz. Find the number of channels per cell for the following systems:
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