Category: Physics

Why does dew point increase with temperature? The dew point is the temperature the air needs to be cooled to (at constant pressure) in order to achieve a relative humidity (RH) of 100%. At this point the air cannot hold more water in the gas form. The higher the dew point rises, the greater the […]

How many solar and lunar eclipses are there in 2020? The year 2020 is a treat for all astronomy enthusiasts and sky-gazers as we are set to witness a total of 6 eclipses – 4 Lunar and 2 Solar, from different parts of the Earth. An annular solar eclipse is known for its characteristic ring […]

What is a disadvantage of asexual reproduction? The disadvantage of asexual reproduction is that organisms do not receive a mix of traits from both parents. An organism that is born through asexual reproduction only has the DNA from the one parent. In fact, the offspring is genetically an exact copy of the parent. What are […]

What is an example of a confirmation bias? Confirmation biases impact how we gather information, but they also influence how we interpret and recall information. For example, people who support or oppose a particular issue will not only seek information to support it, they will also interpret news stories in a way that upholds their […]

How is Sun Path calculated? Distance x–B is (8.42 + 122)1/2 = 14.6 m. For the point B, the altitude angle is tan(α) = 8.4/14.6 → α = 29.9°. Similarly, distance x–C is (6.92 + 122)1/2 = 13.8 m, and for point C, the altitude angle is tan(α) = 8.4/13.8 → α = 31.3°. Both […]

Is blood transparent or opaque? In an isotonic solution the blood is opaque. In a hypo-tonic solution the blood is completely transparent. In a hyper-tonic solution the blood is virtually opaque however does allow some light through. Is Water transparent or opaque? Materials like air, water, and clear glass are called transparent. When light encounters […]

What colors make a room feel cooler? Light colors will reflect heat while darker shades absorb it. This means that it will be easier to cool a room with white walls rather than one with black walls. Lighter shades will make your space feel cooler and easier to cool,” says interior designer Vera Villarosa-Orila. What […]

What are the rules for current in series and parallel circuits? Chapter 5 – Series And Parallel Circuits Voltage: Voltage is equal across all components in a parallel circuit. Current: The total circuit current is equal to the sum of the individual branch currents. Resistance: Individual resistances diminish to equal a smaller total resistance rather […]

Are switch loops legal? Under the new requirement you can still do a switch loop as long as there is a neutral. So if you’re going to do a switch loop it has to be done with 12/3 or 14/3, and just cap off the neutral at the switch. Are 3-Way switches required by code? […]

What is the purpose of calorimeter? Calorimeter, device for measuring the heat developed during a mechanical, electrical, or chemical reaction, and for calculating the heat capacity of materials. Calorimeters have been designed in great variety. How can a calorimeter measure energy? The calorimeter traps all the heat from a chemical reaction, we measure the effect […]