Which state is not a physical state of matter? There is water vapor above a pot of boiling water. That vapor (or gas) can condense and become a drop of liquid water in the cooler air. If you put that liquid drop in the freezer, it would become a solid piece of ice. No matter […]
What is the significance of RMS value?
What is the significance of RMS value? The RMS value is the effective value of a varying voltage or current. It is the equivalent steady DC (constant) value which gives the same effect. For example, a lamp connected to a 6V RMS AC supply will shine with the same brightness when connected to a steady […]
How many chromosomes does meiosis start with?
How many chromosomes does meiosis start with? 46 chromosomes Are cells haploid after meiosis? By the end of meiosis, the resulting reproductive cells, or gametes, each have 23 genetically unique chromosomes. The overall process of meiosis produces four daughter cells from one single parent cell. Each daughter cell is haploid, because it has half the […]
What color does purple yellow make?
What color does purple yellow make? Purple and yellow mixed together can result in magenta or white, depending on the ratios. When you are mixing light, the mechanism is called additive color mixing, and is a bit different from how paint mixing works. Why does mixing red and blue make purple? What colors blend well […]
How does a thermos keep the liquid inside of it warm?
How does a thermos keep the liquid inside of it warm? A thermos is a bottle with a double-walled container inside of it. The air between the two walls is sucked out during construction, creating a vacuum. Instead of containing some kind of heating element to keep hot things hot, a thermos is designed to […]
Who was the first person to study psychology?
Who was the first person to study psychology? Wilhelm Wundt opened the Institute for Experimental Psychology at the University of Leipzig in Germany in 1879. This was the first laboratory dedicated to psychology, and its opening is usually thought of as the beginning of modern psychology. Indeed, Wundt is often regarded as the father of […]
What part of a plant leaves allows the plant to take in carbon dioxide and release oxygen?
What part of a plant leaves allows the plant to take in carbon dioxide and release oxygen? stomata What type of tissue do both plants and animals have? Organs are composed of tissues, which are in turn composed of cells. Plants have three tissue types: ground, dermal, and vascular. Animals have four: epithelial, connective, muscle, […]
What are the salient features of groups?
What are the salient features of groups? 8 Important Features of a Group It consists of two or more persons who interact with each other. Group members have reciprocal influence on each other. In groups, people develop mutual perceptions and emotional ties with each other. What is group and its types? Groups largely define how […]
Can I get good at math?
Are rainbows at night rare?
Are rainbows at night rare? The moon is the key, just as sunlight produces rainbows during the day, moonlight can produce rainbows at night. Moonbows are rare because moonlight is not very bright. A bright moon near to full is needed, it must be raining opposite the moon, the sky must be dark and the […]