Explanation:
(x2) 741 OpAmps (Radioshack Catalog #: 276-007)
(x1) 9V Relay (Radioshack Catalog #: 275-005)
(xvar) jumper wires (Radioshack Catalog #: 276-102)
(x2) Heavy duty 9V battery clips (Radioshack Catalog #: 270-324)
(x2) 9V batteries (Radioshack Catalog #: 23-866)
(x1) Prototyping PCB (Radioshack Catalog #: 276-170)
(x1) Piezo Buzzer (Radioshack Catalog #: 273-080)
(x1) 5K Ohm Potentiometer (Radioshack Catalog #: 271-1714)
(x1) Potentiometer cap (Radioshack Catalog #: 274-415)
(x1) 470 Ohm Resistor (Radioshack Catalog #: 271-1317)
(x1) 3" diameter acrylic tube
(x1) Magnet (Radioshack Catalog #: 64-1888)
(xvar) lamp-pull ball-chain
Tools:
Solder
Soldering Iron
Wire Snips
Hot Glue Gun
I used a laser cutter to make my own personal enclosure, but one could easily modify a pre-made project enclosure to suit the needs of this project.
Answer:
The engineers of ancient Rome designed and constructed many projects to serve the needs of an urban and an imperial nation. With their use of the semicircular arch, the barrel vault, and hydraulic cement, they transformed architecture and construction in the ancient world. The results were impressive in scale and practicality and influential in their shaping of a timeless architectural style.
Explanation:
Answer: peninsula
Explanation: The Republic of Korea or Korea is located on the Korean peninsula, which lies between China to the west, although there is no demarcated border between them, and Japan to the east. This region, situated in Asia, particularly the Far East, is politically divided into two areas: North Korea and South Korea.
Answer:
land,labor,capital, entrepreneur
so A
Option D, commerce is the answer