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The law of CONSTANT proportions states that chemical compounds are made up of elements that are PRESENT in a fixed ratio by mass. This IMPLIES that any pure sample of a compound, no MATTER the source, will always consist of the same elements that are present in the same ratio by mass.

Explanation:As has already been mentioned, a musical instrument has a set of natural frequencies at which it vibrates at when a disturbance is introduced into it. These natural frequencies are known as the harmonics of the instrument. Each harmonic is associated with a standing wave pattern. In Lesson 4 of Unit 10, a standing wave pattern was defined as a vibrational pattern created within a medium when the vibrational frequency of the source causes reflected WAVES from one end of the medium to interfere with incident waves from the source in such a manner that specific points along the medium appear to be standing STILL. In the case of stringed instruments (discussed earlier), standing wave patterns were drawn to depict the amount of movement of the string at various locations along its length. Such patterns show nodes - points of no displacement or movement - at the two fixed ends of the string. In the case of AIR columns, a closed end in a column of air is analogous to the fixed end on a vibrating string. That is, at the closed end of an air column, air is not free to undergo movement and thus is forced into ASSUMING the nodal positions of the standing wave pattern. Air at the closed end of an air column is still. Conversely, air is free to undergo its back-and-forth longitudinal vibration at the OPEN end of an air column. And as such, the standing wave patterns will depict vibrational antinodes at the open ends of air columns. So the basis for drawing the standing wave patterns for air columns is that vibrational antinodes will be present at any open end and vibrational nodes will be present at any closed end. If this principle is applied to closed-end air columns, then the pattern for the fundamental frequency (the lowest frequency and longest wavelength pattern) will have a node at the closed end and an antinode at the open end. For this reason, the standing wave pattern for the fundamental frequency (or first harmonic) for a closed-end air column looks like the diagram below.

Explanation:The MASS of an electron at speed V is  m=  1−v  2  /c  2 m  0 where m  0 is its REST mass. If m=2m  0 2=  1−v  2  /c  2   ​    1 ​    or,    1−  c  2   v  2   ​   =  4 1 ​    or, v=  2 3   c=2.598×10^ 8  ms  −1  .

Clearly, F1>F2, i.e., greater force would be REQUIRED in accelerating a 2kg MASS at 5m/s2.Explanation:hope this helps u.please FOLLOW me

tion:The ENTIRE range of electromagnetic wave FREQUENCIES is KNOWN as the Electromagnetic spectrum.

Explanation:A slice of bread gets heated from the heated filament in a TOASTER by CONVECTION. AIR is heated by filament by convection and RADIATION and heated air transfers the HEAT to the bread by convection

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Let the distance between the source of sound and the obstacle be x METRES .THUS the distance TRAVELLED by sound to reach BACK to the source d=2xAs the minimum time REQUIRED to hear an echo is equal to 0.1secThus d=vt2x=500(0.1)⟹x=25m

Joule is the SI unit of ENERGY while ERG is the CGS unit of energy. Therefore, 1 Joule is equal to 107 erg....

अधिकांश लोग संगठित क्षेत्र में ही काम करना क्यों पसंद करते हैं

ANSWERForce F=ma(1) : F 1 =m 1 a 1 =2×5=10 N(2) : F 2 =m 2 a 2 =4×2=8 NSo, 2 kg will require greater force.Explanation:HOPE this HELPS uplease FOLLOW me.

Each cell organelle has a particular function to perform. Some of the cell ORGANELLES are present in both plant cell and the animal cell, while others are unique to just one. ... DIFFERENCES Between Plant Cell and Animal Cell. Plant Cell Animal Cell Cell Wall Present Absent Plasma/Cell Membrane Present PresentExplanation:PLEASE mark my ANSWER as brainliest and  follow me

tion:Primary SOURCES are the historical DOCUMENTS used by HISTORIANS as EVIDENCE. ... In contrast, a secondary SOURCE is the typical history book which may discuss a person, event or other historical topic. A good secondary source uses primary sources as evidence.

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जब श्वेत प्रकाश को प्रिज्म में से गुजारा जाता है तो वह सात रंगों में विभक्त हो जाता है। इस घटना को वर्ण विक्षेपण कहते है तथा प्राप्त रंगों के समुह को वर्ण क्रम कहते है। अधिक तरंग दैध्र्य वाले प्रकाश अर्थात लाल रंग का विचलन कम तथा कम तरंगदैध्र्य वाले प्रकाश अर्थात बैंगनी का विचलन अधिक होता है।Explanation:i HOPE it is HELPFUL for you

6/5 m/s or 1.2m/sExplanation:TOTAL DISTANCE / total TIME = 60/50

- we use our MOBILE 5,400 TIMES daily.EXPLANATION:- because now it is only INTERNET life. now EVERYTHING is done ONLINE e.

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answer option B RADIO WAVES..HOPE it helps you..amrk me as BRAINLIST..thankyou..

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the force of gravity with which a BODY is ATTRACTED toward the centre of the earth us CALLED the weight of the body and it is EQUAL to the product of mass and accelration due to gravity OFFERED by the earth.

89⁰ is CORRECT ANSWER 100% TRUE

2000JExplanation:WORK : MGH = 20×10×10 = 2000 J

To answer this problem , we must have knowledge of all the possible location of Object where it is to be PLACED and Image formed corresponds to these possible location... CONCAVE mirror forms Erect image only in one CASE when object is placed between the Pole and Principal axis... Since FOCAL length of a concave mirror is 12cm so the RANGE will be 0 to 12cm...This mean if we place an object in between this range we always get erect image

49500jExplanation: Acceleration a = F/m = 100/10= 10ms-2 Final velocity v = U + at = 10+ 10×9= 10+90= 100ms-1 Initial KINETIC ENERGY= 0.5×mu2  = 0.5× 10×10××10 =500J Final kinetic energy = 0.5×mv2  = 0.5×10×100×100= 50000J CHANGE in kinetic energy = 50000-500= 49500J

try to make it clear that you are o- not coming from the same place to live with your FRIENDS or microbes that are not the same 4th of your life and your life is a matter of the size of your home work or your voice and your personal life and the earth you want them to make it easier 3and you want them out Explanation:the new York city POLICE KAHA said that they were investigating a spirit that had already beginner in HINDI ENGLISH and the world and it is a great place for

d) all are CORRECT HOPE it HELPS

A BODY weighing 5 kgf, placed on a SURFACE of area 0.1 M2, EXERTS a THRUST on the surface equal to 5 kgf

Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from the Earth's INTERIOR out into space, where it interacts with the solar wind, a stream of charged particles emanating from the Sun. The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in the Earth's outer core: these convection currents are caused by heat ESCAPING from the core, a natural process called a geodynamo. The magnitude of the Earth's magnetic field at its surface ranges from 25 to 65 microteslas (0.25 to 0.65 gauss).[3] As an approximation, it is represented by a field of a magnetic dipole currently tilted at an angle of about 11 degrees with respect to Earth's rotational axis, as if there were an enormous bar magnet placed at that angle through the center of the Earth. The North geomagnetic pole, which was in 2015 located on Ellesmere Island, Nunavut, Canada, in the northern hemisphere, is actually the south pole of the Earth's magnetic field, and conversely.While the North and South magnetic poles are usually located near the geographic poles, they slowly and continuously move over geological time scales, but sufficiently slowly for ordinary compasses to remain useful for navigation. However, at irregular intervals averaging several hundred thousand years, the Earth's field reverses and the North and South Magnetic Poles respectively, abruptly switch places. These reversals of the geomagnetic poles leave a record in rocks that are of value to paleomagnetists in calculating geomagnetic fields in the past. Such information in turn is helpful in studying the motions of continents and ocean floors in the process of plate tectonics.The magnetosphere is the region above the ionosphere that is defined by the extent of the Earth's magnetic field in space. It extends several tens of thousands of kilometers into space, protecting the Earth from the charged particles of the solar wind and cosmic rays that would otherwise strip away the upper ATMOSPHERE, including the ozone layer that protects the Earth from harmful ultraviolet radiation.rahfar5 stop deleting my ANSWERS okay.. u dont have any right to delete relevant answers...if you dont want KNOWLEDGE let others grab it...

Centripetal acceleration is the RATE of change of tangential velocity. The NET FORCE CAUSING the centripetal acceleration of an object in a circular motion is DEFINED as centripetal force.

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The statvolt is a unit of voltage and electrical POTENTIAL used in the CGS-ESU and GAUSSIAN systems of units. In TERMS of its relation to the SI units, ONE statvolt corresponds to exactly ccgs 10−8 volt, i.e. to 299.792458 volts.

The rise or fall of a FLUID in a capillary tube is governed by the balance of cohesive and ADHESIVE forces. Inermolecular forces are RESPONSIBLE for cohesion and adhesion. The narrower the BORE of a glass tube, the greater the extent of raising or LOWERING of the liquid.

Newton's third LAW of motion is : to every action there is an equal and opposite REACTION and they act on two DIFFERENT BODIES. Explanation:hope it helps youPLEASE MARK AS BRAINLIEST

Explanation:An electric current is a STREAM of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge past a region.[1]:2[2]:622 The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor. In electric CIRCUITS the charge carriers are often electrons moving through a wire. In semiconductors they can be electrons or holes. In an electrolyte the charge carriers are ions, while in plasma, an ionized gas, electric current is formed by both electrons and ions.[3] The SI unit of electric current is the ampere, or amp, which is the flow of electric charge across a surface at the rate of one coulomb per second. The ampere (symbol: A) is an SI base unit[4]:15 Electric current is measured using a device called an ammeter.[2]:788 Electric currents create magnetic fields, which are used in motors, generators, inductors, and transformers. In ordinary conductors, they cause Joule heating, which creates LIGHT in incandescent light bulbs. Time-varying currents EMIT electromagnetic waves, which are used in telecommunications to broadcast information.

11.11m/sExplanation:START of the trip = 2000kmend of the trip = 2400kmSo, distance travelled = 2400 KM - 2000km = 400KM = 400000mtime TAKEN = 10 HRS = 36000sTherefore speed = d/t = 400000m/ 36000s = 11.11 m/s