How does a roller coaster work without an engine? As the roller coaster falls, it accelerates and builds up enough kinetic energy to propel it through the remainder of the ride. No engine is required because of inertia. As you ride a roller coaster, its wheels rub along the rails, creating heat as a result […]
How do you control your emotions during a difficult conversation?
How do you control your emotions during a difficult conversation? Adapted from Breathe. Simple mindfulness techniques can be your best friend in tense situations and none is more straightforward and accessible than using your breath. Focus on your body. Try saying a mantra. Acknowledge and label your feelings. Take a break. Why do I cry […]
Why do I hear overtones?
Why do I hear overtones? The technique is called overtone singing. The ear now lacks information from the familiar voice sound, and individual partial tones become so loud due to the double resonance that the brain separates the sounds and communicates them to the consciousness as two separate tones. Do all notes have overtones? Overtones: […]
Is there a train from LA to San Francisco?
What is a simple frequency distribution?
What is a simple frequency distribution? A frequency distribution is a representation, either in a graphical or tabular format, that displays the number of observations within a given interval. The interval size depends on the data being analyzed and the goals of the analyst. Frequency distributions are typically used within a statistical context. Why should […]
What is the most important origin of life?
What is the most important origin of life? RNA World has been the prevailing theory for the origin of life since the 1980s. The emergence of a self-replicating catalytic molecule accounts for signature capabilities of living systems, but it doesn’t explain how the protobiological molecule itself arose. What is the Cosmozoic theory? Cosmozoic theory is […]
Is energy always conserved?
Is energy always conserved? The total amount of energy and matter in the Universe remains constant, merely changing from one form to another. The First Law of Thermodynamics (Conservation) states that energy is always conserved, it cannot be created or destroyed. In essence, energy can be converted from one form into another. How do you […]
What is an example of an object accelerating?
What is an example of an object accelerating? Yes, acceleration is a change in velocity, so an object might be momentarily at rest but a split-second later have some speed, i.e. it can be changing its velocity even if it is momentarily at rest. An example is a vertically thrown ball at the top of […]
Did Socrates Plato and Aristotle believe in God?
Did Socrates Plato and Aristotle believe in God? In short, Socrates was put to death for being a theist—he believed in a God—and for being an atheist with respect to the Homeric gods, in addition to charges of “corrupting the youth.” Plato and Aristotle believed in one God, who created the universe. What is the […]
What are the advantages of fiber optic cable and twisted wire?
What are the advantages of fiber optic cable and twisted wire? Twisted pair cables are the most cost-effective option among coaxial and fiber optic, but there is also lower bandwidth and higher attenuation, i.e., the greater the distance the lower the performance. What are 3 advantages of twisted pair cable? Page 1 Twisted-pair cable and […]