10.20 lab*: warm up: online shopping cart (part 1) (1) create three files to submit: itemtopurchase. h - class declaration itemtopurchase. cpp - class definition main. cpp - main() function build the itemtopurchase class with the following specifications: default constructor public class functions (mutators & accessors) setname() & getname() (2 pts) setprice() & getprice() (2 pts) setquantity() & getquantity() (2 pts) private data members string itemname - initialized in default cons

What precautions should you take to prevent injuries when dealing with heavy loads?

Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater