Category: Physics

Does sound travel faster in deep water? Sound travels faster in water compared with air because water particles are packed in more densely. Thus, the energy the sound waves carry is transported faster. This should make the sound appear louder. How do speakers work underwater? Most underwater speakers produce strong vibrations over a full range […]

What is a throat called? The throat (pharynx) is a muscular tube that runs from the back of your nose down into your neck. It contains three sections: the nasopharynx, oropharynx and laryngopharynx, which is also called the hypopharynx. What structure is the primary location of gas exchange in the lungs? Gas exchange takes place […]

At what distance should you stop away from railroad tracks if a train is crossing? 50 feet When approaching a railroad crossing you should never? Remember that any time is train time. Slow down when approaching a railroad crossing and look both ways—TWICE! Never race a train to cross the tracks. Never pass another vehicle […]

Are essential components of any personal training plan quizlet? Set fitness goals, track performance, spot areas for improvement. are essential components of any personal training plan. Rest and recovery. What does good physical health look like? A person who has good physical health is likely to have bodily functions and processes working at their peak. […]

Which Colour increases your visibility during day time? During the day, our eyes are most easily able to pick up green light, followed by yellow and blue. This is one reason traffic lights are green. Red is also used in traffic lights because it stands out against all the green in nature — even though […]

Who is the current minority leader in the Senate? The current leaders are Democratic Majority Leader Chuck Schumer of New York and Republican Minority Leader Mitch McConnell of Kentucky. What power does the Senate minority leader have? The minority leader is often assisted in his/her role by one or more whips, whose job is to […]

Why does a solid sphere have smaller? But in case of a solid sphere, the same mass is distributed throughout at distance from zero to R from the axis of symmetry. Here, R is radius of cylinder/sphere. That is why a solid sphere has smaller moment of inertia than a hollow cylinder of same mass […]

What happens when you remove heat from a solid? Adding heat can cause ice (a solid) to melt to form water (a liquid). Removing heat causes water (a liquid) to freeze to form ice (a solid). When water changes to a solid or a gas, we say it changes to a different state of matter. […]

What is an example of a force vector? You can add two or more force vectors that are at angles with respect to each other to create a new force vector. An example is if a force is moving an object in a given direction and wind applies a force on it at an angle, […]

What is true of activation energy? Activation energy is the amount of energy required to allow a reaction to occur. This energy is often used in the breaking of bonds in order to force a reaction to occur. Activation energy is mathematically defined in Arrhenius’ equation. What is the physical significance of activation energy? The […]