What is rms current?
What will be an ideal response?
For a steady current flow, rms current is 0.707 times the peak current.
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The following list of potential design projects can be addressed by following the six-step design process discussed in the chapter. A team approach to a proposed solution, with three or four members on each team, is recommended. Develop a report and oral presentation as directed by your instructor.
? A device to prevent the theft of helmets left on motorcycles ? An improved rack for carrying packages or books on a motorcycle or bicycle ? A solar-powered battery charger ? A device to permit easier draining of the oil pan by weekend mechanics ? A heated steering wheel for cold weather ? A sun shield for an automobile ? An automatic pet feeder for proper metering of food ? A storage system for a cell phone in a car (including charger) ? An improved wall outlet for multiple uses ? A beverage holder for a stand-up work desk ? A key finder for when you loose your keys ? An improved automobile traffic pattern on campus ? An alert for drowsy or sleeping drivers ? Improved bicycle brakes ? A campus transit system ? Improved pedestrian crossings at busy intersections ? Improved parking facilities in and around campus ? A device to attach to a paint can for pouring ? An improved soap dispenser ? A better method of locking weights to a barbell shaft ? A shoestring fastener to replace the knot ? A better jar opener ? A system or device to improve efficiency of limited closet space ? A shoe transporter and storer ? A device to pit fruit without damage ? An automatic device for selectively admitting and releasing pets through an auxiliary door ? A device to permit a person loaded with packages to open a door Problem continued on next page... ? A more efficient toothpaste tube ? A fingernail catcher for fingernail clippings ? A more effective alarm clock for reluctant students ? A device to help a parent monitor small children’s presence and activity in and around the house ? A simple pocket alarm that is difficult to shut off, used for discouraging muggers ? An improved storage system for luggage, books, and so on in dormitories ? A lampshade designed to permit one roommate to study while the other is asleep ? A device that would permit blind people to vote in an otherwise conventional voting booth ? A bicycle for a child with disabilities ? A silent wake-up alarm ? Home aids for the blind (or deaf) ? A safer, more efficient, and quieter air mover for room use ? A can crusher ? A rain-sensitive house window that would close automatically when it rains ? A better grass catcher for a riding lawn mower ? A built-in auto refrigerator ? A better camp cooler ? A dormitory cooler ? An impact-hammer adapter for electric drills ? An improved method of detecting and controlling the level position of the bucket on a bucket loader ? An automatic tractor-trailer-hitch aligning device ? A jack designed expressly for motorcycle use (special problems involved) ? Improved road signs for speed limits, curves, deer crossings, and so on ? A device for dealing with oil slicks ? An egg container (light, strong, compact) for camping and canoeing ? Ramps or other facilities for handicapped students
This section describes a process for examining ethical issues. Use this process to answer the following question: Is it ethical to use genetically modified corn that contains the pesticide gene Bacillus thuringiensis (Bt)?
What will be an ideal response?
The tool is aligned with the work:
A) With a small square B) With a center gage C) With a thread gage D) By squaring the tool on the face of the workpiece
In its lowest terms, 9/15 = __________.
Fill in the blank(s) with the appropriate word(s).