What solutions have more OH than H+? Water that contains equal numbers of H+ and OH- ions is considered neutral (pH 7). If a solution has more H+ than OH- ions, it is considered acidic and has a pH less than 7. If a solution contains more OH- ions than H+ ions, it is considered […]
What 3 things does a pedometer measure?
What 3 things does a pedometer measure? Pedometers come in all shapes and sizes. Simple devices simply measure steps, while others also include features such as time, alarm, distance, calories, etc. Are phone pedometers accurate? Accurate pedometers are useful tools to motivate and estimate physical activity. There are today free pedometer applications available for download […]
What happen if the Earth is bigger than its current size?
What happen if the Earth is bigger than its current size? First, if the Earth is bigger that its current size, it would also gain a stronger magnetic field and greater gravitational pull because of the additional mass, and this is a bad news for us, because lifting an object would be so much difficult […]
Which device is used to indicate the direction of current?
Which device is used to indicate the direction of current? The current flows through the ammeter. Note that an ammeter has a very low resistance. How can a DMM be used to determine the direction of flow? When using a multimeter to measure current, the only way that can be used to detect the level […]
What is the parallax of error and how could we avoid it?
What is the minimum ceiling for VFR flight?
What is the minimum ceiling for VFR flight? IFR means a ceiling less than 1,000 feet AGL and/or visibility less than three miles. Low IFR (LIFR) is a sub-category of IFR. VFR means a ceiling greater than 3,000 feet AGL and visibility greater than five miles. What is the minimum VFR? Basic VFR Weather Minimums […]
How do you use the word hue?
At what speed the Earth rotates?
At what speed the Earth rotates? 1,000 miles per hour Where does time move the fastest? 3 Answers. To have time go slower just climb up the earth’s gravitational well. Go up to the GPS satellite orbits and general relativity has it that time will go faster, I.e., the GPS clocks go faster than the […]
Do vaccines come from cows?
Do vaccines come from cows? The word “vaccination”, coined by Jenner in 1796, is derived from the Latin adjective vaccinus, meaning “of or from the cow”. Once vaccinated, a patient develops antibodies that make them immune to cowpox, but they also develop immunity to the smallpox virus, or Variola virus….Cowpox. Cowpox virus Species: Cowpox virus […]
What are the main differences between the Thomson and Rutherford models?
What are the main differences between the Thomson and Rutherford models? The main difference between Thomson and Rutherford model of atom is that Thomson model does not give details about the atomic nucleus whereas Rutherford model explains about the nucleus. What is the difference between Rutherford and Bohr model? The main difference between Rutherford model […]