1. What is an op-amp? List the characteristics of an ideal op-amp

Refrigerant-134a at 400 psia has a specific volume of 0.1144 ft3/lbm. Determine the temperature of the refrigerant based on (a) the ideal-gas equation, (b) the van der Waals equation, (c) the refrigerant tables.

A bar having a length of 5 in. and cross-sectional area of 0.7 i n. 2 is subjected to an axial force of 8000 lb. If the bar stretches 0.002 in., determine the modulus of elasticity of the material. The material has linear elastic behavior.

An alloy is a metal composed of two or more elements, at least one of which is metallic. The two main categories of alloys are which two of the following: (a) alloids, (b) intermediate phases, (c) metal compounds, (d) phase solutions, and (e) solid

A large retail organization previously divided work among its four employee-benefits staff into distinct specializations.

The ratio of absolute viscosity to the density of a substance is known as a) Dynamic viscosity b) coefficient of viscosity c) kinematic viscosity d) none of these

A steel with 1.0 % carbon is known as which one of the following: (a) eutectoid, (b) hypoeutectoid, (c) hypereutectoid, or (d) wrought iron?

A transistor can not be used as a Select one variable resistor switching device regulator tuning device

Where might you find recommendation engines at work?

Just getting to your class is enough for showing up. A) True B) False

A completely reversible heat pump produces heat at a rate of 100 kW to warm a house maintained at 25℃. The exterior air, which is at 0℃, serves as the source.