Category: Physics

How can we overcome modal dispersion? One way to reduce modal dispersion is to use graded-index fiber. Unlike the two distinct materials in a step-index fiber, the graded-index fiber’s cladding is doped so that the refractive index gradually decreases over many layers. Which type of fiber has highest modal dispersion? Multimode fiber What is difference […]

When was the speed limit 55 mph? 1974 How many feet do you need to stop at 55 mph? 300 feet What is the highest speed limit in the US? 85 mph What was the speed limit in the 70s? The National Limit of 55 mph The cost of rising fuel prices caused many states […]

What makes it easier to push heavy things answer? Answer: When you push there is one component of force that adds to the weight of the body and hence there is more friction. When you pull the vertical component of force is against the weight of body and hence there is less overall friction. So […]

What is a wave cycle? Wave cycles are pairs of a maximum value and a corresponding minimum value. The crest front wavelength is the distance between the minimum and the maximum. A min2Max cycle is a pair of a local minimum and the following local maximum. Which is a characteristic of all waves? All kinds […]

How do you fix a flooded atomizer? Fold the paper towel several times and hold it against the end of the atomizer. Blow gently through the drip tip until the atomizer stops gurgling. Reassemble the e-cigarette. You should now be able to resume e-smoking. How do you tell if your coil is flooded? The characteristic […]

What are some positive and negative effects of migration? Country losing people Advantages Disadvantages Decreases pressure on jobs and resources Gender imbalances are caused as it is typically men who seek to find employment elsewhere. Women and children are left Migrants may return with new skills ‘Brain drain’ if many skilled workers leave What are […]

What are the special features of desert plants? Features of Desert Plants Low Water Requirements. Desert plant survival depends on being able to exist on very little rainfall. Small or No Leaves. Moisture evaporates through leaves. Thorns. Many desert plants have needles or thorns. Ability to Quickly Absorb Water. What causes a desert to form? […]

What are two examples of the Doppler effect? The drop in pitch of ambulance sirens as they pass by and the shift in red light are common examples of the Doppler Effect. Edwin Hubble made the discovery that the universe expands as a consequence of the Doppler Effect. Where is the Doppler effect used? Doppler […]

What are the four stages in the life cycle of a low mass star? Stars about the size of our sun go through the same first four stages as does any other star. They begin their lives as a nebula, then become a Protostar, eventually becoming a main sequence star and finally a red giant. […]

What are two examples of liquid? Examples of Liquids Water. Milk. Blood. Urine. Gasoline. Mercury (an element) Bromine (an element) Wine. What are two examples of a gas? Examples of Gases Hydrogen. Nitrogen. Oxygen. Carbon Dioxide. Carbon Monoxide. Water Vapour. Helium. Neon. What are the common gases? Common gases include Acetylene, Argon, Carbon Dioxide, Helium, […]