The solution #3767 is correct. Neat work, bobbym!
#3768. In each of the following system of equations determine whether the system has a unique solution, no solution or infinitely many solutions.
In case there is a unique solution, find it:
(i) 2x + y = 5,
4x + 2y = 10.
(ii) x - 2y = 8,
5x - 10y = 10.
The Answers, #6619 and #6620, are correct. Excellent, bobbym!
#6621. Name the English physicist, and Nobel Prize in Physics laureate (5 December 1903 - 9 August 1969) for his development of the photographic method of studying nuclear processes and for the resulting discovery of the pion (pi-meson), a subatomic particle.
#6622. Name an an elementary particle similar to the electron, with an electric charge of -1 e and a spin of 1/2, but with a much greater mass. It is classified as a lepton. As is the case with other leptons, it is not believed to have any sub-structure - that is, it is not thought to be composed of any simpler particles.
Both the Answers, #6617 and #6618, are correct. Excellent, bobbym!
#6619. Name a type of remote-sensing thermometer used to measure the temperature of a surface. Various forms of it have historically existed. In the modern usage, it is a device that from a distance determines the temperature of a surface from the spectrum of the thermal radiation it emits.
#6620. Name an instrument used for measuring ionizing radiation used widely in applications such as radiation dosimetry, radiological protection, experimental physics and the nuclear industry. It detects ionizing radiation such as alpha particles, beta particles and gamma rays using the ionization effect produced in a tube; which gives its name to the instrument. In wide and prominent use as a hand-held radiation survey instrument, it is perhaps one of the world's best-known radiation detection instruments.
The Answer II 144 is correct. Neat work, bobbym!
II 146. The Temple of Artemis or Artemision, also known less precisely as the Temple of Diana, was a Greek temple dedicated to the goddess Artemis. It was located in Ephesus (near the modern town of Selçuk in present-day Turkey). One of the Seven Wonders of the Ancient World, it was completely rebuilt three times before its final destruction in which year?
II 147. The Colossus of Rhodes was a statue of the Greek titan-god of the sun Helios, erected in the city of Rhodes, on the Greek island of the same name, by Chares of Lindos in 280 BC. One of the Seven Wonders of the Ancient World, it was constructed to celebrate Rhodes' victory over the ruler of Cyprus, Antigonus I Monophthalmus, whose son unsuccessfully besieged Rhodes in 305 BC. According to most contemporary descriptions, the Colossus stood approximately 70 cubits, or 33 metres (108 feet) high-the approximate height of the modern Statue of Liberty from feet to crown-making it the tallest statue of the ancient world. It was destroyed during the earthquake and never rebuilt. Which year was it?
The Answer #6613 is correct. Neat work, bobbym!
#6615. Name the person : He has been called the "father of observational astronomy", the "father of modern physics", the "father of scientific method", and the "father of science". In about 1593, he constructed a thermometer, using the expansion and contraction of air in a bulb to move water in an attached tube.
#6616. Name the first electric clothes washer sold commercially in the United States. Produced by the Chicago-based Hurley Electric Laundry Equipment Company, it is believed to be the first electrically powered washer ever manufactured, crediting Hurley as the inventor of the first automatic washing machine.
The Answer #6612 is correct. Excellent, bobbym!
#6613. Where is 'Huascarán'? (The mountain was named after Huáscar, a 16th-century Inca emperor who was the Sapa Inca of the Inca empire.)
#6614. Where is 'Cape Guardafui'? (also known as Ras Asir and historically as Aromata promontorium)
The Answer #6610 is correct. Good work, bobbym!
#6611. Where is the Bambara language spoken?
#6612. Where is 'Guadalajara'? (It is the 10th largest city in Latin America in population, urban area and gross domestic product. The city is named after the Spanish city of this name, the name of which came from the Andalusian Arabic wād(i) l-ḥijāra, meaning "river/valley of stones".)