What is more accurate than a stopwatch? Far more accurate than quartz crystal oscillations are an atomic time clock. With an error of only 1 second in up to 100 million years, atomic clocks are among the most accurate timekeeping devices in history. How fast can you stop a stopwatch? The Right Answer wrote: 0.05 […]
What unique property of water contributes to this effect?
What unique property of water contributes to this effect? What unique property of water contributes to this effect? Water expands and becomes less dense when it freezes. Water molecules completely separate into ions in solutions. Water forms hydrogen bonds with ions and other polar substances. What makes water unique? Water molecules are polar, so they […]
What are the 5 non-renewable resources?
What are the 5 non-renewable resources? Nonrenewable energy resources include coal, natural gas, oil, and nuclear energy. Once these resources are used up, they cannot be replaced, which is a major problem for humanity as we are currently dependent on them to supply most of our energy needs. What is good about non-renewable resources? The […]
How do you know if tubes are open or closed?
What is the ratio of distance and speed?
Do refracting telescopes have mirrors?
Do refracting telescopes have mirrors? Refracting telescopes use lenses to focus the light, and reflecting telescopes use mirrors. I’ll talk first about refracting ones. Refracting telescopes work by using two lenses to focus the light and make it look like the object is closer to you than it really is. Both lenses are in a […]
What are the factors on which surface tension depends?
What are the factors on which surface tension depends? Surface tension depends on the nature of the liquid, the surrounding environment and temperature. Liquids where molecules have large attractive intermolecular force will have a large surface tension. How do you explain surface tension? Surface Tension: “The property of the surface of a liquid that allows […]
How geothermal energy works step by step?
How geothermal energy works step by step? Geothermal Power Plants Hot water is pumped from deep underground through a well under high pressure. When the water reaches the surface, the pressure is dropped, which causes the water to turn into steam. The steam spins a turbine, which is connected to a generator that produces electricity. […]
Is water a source of energy for the body?
Is water a source of energy for the body? One must understand that water is pivotal to a healthy, mind, body and heart. Besides quenching one’s thirst, it is also the ultimate source of energy. What is the importance of nutrition? A healthy diet throughout life promotes healthy pregnancy outcomes, supports normal growth, development and […]