_________ shields are thin sheets of metal with cutouts.
Fill in the blank(s) with the appropriate word(s).
Erasing
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In the following, take 
and 
for nitrogen gas:
(a) Three moles of nitrogen at 30°C, contained in a rigid vessel, is heated to 250°C. How much heat is required if the vessel has a negligible heat capacity? If the vessel weighs 100 kg and has a heat capacity of 
how
much heat is required?
(b) Four moles of nitrogen at 200°C is contained in a piston/cylinder arrangement. How much heat must be extracted from this system, which is kept at constant pressure, to cool it to 40°C if the heat capacity of the piston and cylinder is neglected?
Answer the following statements true (T) or false (F)
1. A plot plan becomes a legal document containing an accurate drawing and a legal description of the land. 2. Site analysis is a system of land use planning and public restrictions applied by local governments. 3. Grading plans are construction drawings that generally show existing and proposed topography. 4. A planned unit development (PUD) only allows zoning for single- and multifamily homes. 5. A PUD plan often includes a land use summary and displays special spaces, such as recreational and open spaces, or other unique characteristics.
What is the term Caterpillar use to describe the pilot injection feature of later model HEUIs?
A. IPR B. IAP C. ACERT D. PRIME
The size of the error signal effects the amplitude of a proportional mode output signal.
Answer the following statement true (T) or false (F)