Category: Physics

What kind of a wave is sound? These particle-to-particle, mechanical vibrations of sound conductance qualify sound waves as mechanical waves. Sound energy, or energy associated with the vibrations created by a vibrating source, requires a medium to travel, which makes sound energy a mechanical wave. How ECHO is created? An echo is made by sound […]

Which device is used to break a circuit? switch Why is switch used in a circuit? The purpose of a switch in a series circuit is to make it easy to open or close the electrical circuit, turning the flow of electricity on or off. The purpose of the wires in a series circuit is […]

What are the 32 elements in 6th period? The sixth period contains 32 elements, tied for the most with period 7, beginning with caesium and ending with radon….Period 6 element. Hydrogen Rubidium Strontium Yttrium Zirconium Niobium How many orbitals are in the 6th period? As per (n + l) rule in 6th period, order of […]

Can I plug a 240V into 120V? How can I use 240V AC appliance on a 120V AC Mains without using a step up transformer? The majority of 220V to 240V appliances wont work with just 110VAC. Your best option is to find a 220V outlet. You might need to also find an adapter to […]

What do I say in an email with my resume? How to Email a Resume? Use an effective subject line. Address the hiring manager by name. In the first paragraph, tell the hiring manager who you are and why are you contacting them. In the second paragraph say what value you’d bring to the company. […]

Does a 4 stroke engine need mixed fuel? 4 cycle engines do not need oil mixed with the gas to provide lubrication, since it has oil in the crankcase. Two cycle engines have to have oil mixed in the gas to provide the lubrication needed, since there is no oil in the sump. Is 4-cycle […]

Which is better Frye or Daubert? Under Frye, the scientific community is essentially the gatekeeper determining evidence admissibility. Using the strict standard, if the scientific community finds a method or theory acceptable, the court must admit the evidence. While Frye offers a bright line rule, Daubert provides courts with flexibility. What is the main difference […]

Does the initial velocity affect acceleration? Initial velocity is independent of the slope of the graph; that is, the acceleration. Does a heavier object hit the ground first? In other words, if two objects are the same size but one is heavier, the heavier one has greater density than the lighter object. Therefore, when both […]

How many jelly beans are in a 2 pound bag? 49 How many jellybeans can fit in a Mason jar? Ball 16 oz Pint Mason Jar outer dimensions are 5.2 height by 3.2 diameter – which could hold approximately 390 jelly beans. Ball 32 oz Quart Mason Jar outer dimensions are 6.9 height by 3.9 […]

How much work is done in stretching the spring? Reasoning: The work done in stretching or compressing a spring is proportional to the square of the displacement. If we double the displacement, we do 4 times as much work. How many lbs of force does it take to hold a spring 4ft beyond its natural […]