How do you know if a property is intensive or extensive? Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. Physical properties can be measured without changing a substance’s chemical identity. Which […]
Why do toilets flush the opposite way in Australia?
Why do toilets flush the opposite way in Australia? Because of the rotation of the Earth, the Coriolis effect means that hurricanes and other giant storm systems swirl counter-clockwise in the Northern Hemisphere, and clockwise in the Southern Hemisphere. In theory, the draining water in a toilet bowl (or a bathtub, or any vessel) should […]
What are types of damped oscillation?
What are types of damped oscillation? The diagram shown on the right indicates three types of damped harmonic motion. Critically damped: The system returns to equilibrium as quickly as possible without oscillating. Underdamped: The system oscillates (at reduced frequency compared to the undamped case) with the amplitude gradually decreasing to zero. What is positive damping? […]
Can dogs drink water from a dehumidifier?
Can dogs drink water from a dehumidifier? Would it be safe to use the water I take from my dehumidifier and give it to my pets? No. The typical collection tank from a residential dehumidifier is not a safe source of potable water, and certainly isn’t up to the quality of commercially-distilled water. Is it […]
What is the process of nitrification?
What is the process of nitrification? Nitrification is a microbial process by which reduced nitrogen compounds (primarily ammonia) are sequentially oxidized to nitrite and nitrate. Ammonia is present in drinking water through either naturally-occurring processes or through ammonia addition during secondary disinfection to form chloramines. What are the steps of nitrification? In general, the nitrogen […]
Do antibiotics weaken immune system against viruses?
Do antibiotics weaken immune system against viruses? However, antibiotics can also have harmful side effects, increase bacterial resistance, and sometimes even work against your immune system. Antibiotics are not effective against viruses, and overall, they are widely overprescribed and often unnecessary — here’s how to know if you should be taking them. Do antibiotics weaken […]
What are the characteristics of a warm front?
What are the characteristics of a warm front? Warm fronts are typically characterized by a transition from southeasterly to southwesterly winds. Unlike cold fronts, winds along the front itself are generally light and variable. Warm fronts, as their name implies, are also characterized by a rise in temperature, but also humidity. When a weather front […]
Do tents attract lightning?
Do tents attract lightning? Tents alone don’t attract lightning, but that doesn’t mean they’re safe during a thunderstorm. The possibility for a tent to get struck by lightning is increased by the campsite location and adjacent tall objects. What happens if lightning hits a tent? If a lightning bolt hits a tent the energy will […]
What is the semi major axis of Earth?
What is the semi major axis of Earth? 1.000 1 What is the value for eccentricity? orbital calculations For a perfectly circular orbit, the eccentricity is 0; with increasing elongation of the orbit’s shape, the eccentricity increases toward a value of 1, the eccentricity of a parabola. What is the eccentricity of a straight line? […]
Will Vinegar float on water?
Will Vinegar float on water? They don’t mix in water and will float. Household vinegar consists almost entirely of water, but with some acetic acid molecules dissolved in it. Is isopropyl alcohol heavier than water? This means that water and isopropyl alcohol must have different densities and that the water is more dense than isopropyl […]