How high can a helium balloon go? 9,000 meters What happens to a helium balloon in space? One is that atmospheric pressure is dramatically reduced at high altitudes, so a helium balloon expands as it rises and eventually explodes. But the elasticity of rubber decreases at very low temperatures so it is possible that helium […]
Can a load be a resistor?
Can a load be a resistor? Devices called resistors are built to provide precise amounts of resistance in electric circuits. Any device that performs some useful task with electric power is generally known as a load. Sometimes resistor symbols are used in schematic diagrams to designate a non-specific load, rather than an actual resistor. What […]
What is the principle of optical Fibre?
What is the principle of optical Fibre? Optical Fibers are based on Total Internal Reflection. The phenomenon in which the angle of incidence is more than the critical angle is known as total internal reflection. What are the properties of optical fiber? The most important properties for communications are attenuation, light collection and propagation, fiber […]
What are some examples of wellness?
What are some examples of wellness? Wellness is the state of good mental, physical and emotional health. An example of wellness is eating correctly and exercising every day. The condition of good physical and mental health, especially when actively maintained by proper diet, exercise, and avoidance of risky behavior. What is wellness all about? Wellness […]
Why electrical appliances are not connected in series?
Why electrical appliances are not connected in series? Answer. Electrical appliances are not connected in series because current will be same through all the appliances connected whereas appliances have different current ratings and also that voltage decreases as more no. Of appliances are connected. What happens if the household electric appliances are connected in series? […]
Who will be fined for not wearing a seatbelt?
Who will be fined for not wearing a seatbelt? By law, drivers must ensure that they and any other passenger in the vehicle are wearing their seatbelt, regardless of their age. However, passengers are still accountable, as both drivers and passengers aged 16 years and over can be fined if they fail to wear a […]
What is a good analogy?
What is a good analogy? A good analogy is a compromise between two conflicting goals: familiarity and representativeness. Good analogies are familiar. They express an abstract idea in terms of a familiar one. But a good analogy doesn’t need to be concrete, it only needs to be expressed in terms of an idea you already […]
Is a double bond one electron group?
Is a double bond one electron group? Double or triple bonds count as a single electron group. The molecule will not be a perfect equilateral triangle because the C–O double bond is different from the two C–H bonds, but both planar and triangular describe the appropriate approximate shape of this molecule. What are the three […]
What reduces cholesterol quickly?
What reduces cholesterol quickly? A few changes in your diet can reduce cholesterol and improve your heart health: Reduce saturated fats. Saturated fats, found primarily in red meat and full-fat dairy products, raise your total cholesterol. Eliminate trans fats. Eat foods rich in omega-3 fatty acids. Increase soluble fiber. Add whey protein. Can you live […]
What are the 3 major types of galaxies?
What are the 3 major types of galaxies? Astronomers classify galaxies into three major categories: elliptical, spiral and irregular. These galaxies span a wide range of sizes, from dwarf galaxies containing as few as 100 million stars to giant galaxies with more than a trillion stars. What is older than the universe? Our Sun is […]