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6451.

1. An object is said to be at rest when its position to it's surrounding does not change​

Answer»

The STATEMENT is TRUE.

6452.

The force acting on a book whichKept on a table a) tension force or gravitation force b) gravitation force or force of frictionc) normal force or gravitation forced) normal force or tension force need the answer plz it's mandatory​

Answer» C)normal force (upward), gravitational force (DOWNWARD)Explanation:PLEASE----MARK AS BRAINLIST ANSWER ❤️❤️PLZZ FOLLOW ME
6453.

अवकरण की किया मे हाइड्रोजन का अनुपात क्या हैं​

Answer» PTA nhi BHAI tum hi bta do HM anpd he
6454.

Please anyone give the answer of this question. I will mark u as brainliest ❤️❤️.​

Answer»

d is the CORRECT option.Explanation:HOPE it HELPS you!!!

6455.

Derive the relation ( v^2 - u ^2 = 2 as ) by using graphical method

Answer»

initial velocity of the object = uLet the object is moving with uniform acceleration, a.Let object reaches at POINT B after time, t and its final velocity BECOMES, vDraw a LINE parallel to x-axis DA from point, D from where object starts moving.Draw another line BA from point B parallel to y-axis which meets at E at y-axis.The distance covered by the object moving with uniform acceleration is given by the area of trapezium ABDOTherefore, Area of trapezium ABDOE = 21 × (sum of parallel SIDES + distance between parallel sides)Distance(S)= 21 (DO+BE)×OES= 21 (u+v)×t...............(i)we know that,a= tv−u from above equation we can say,t= av−u ...........(ii)After substituting the value of t from equation(ii) in equation (i)S= 2a1 (u+v)(v−u)2aS=(u+v)(v−u)2aS=v 2 −u 2 Hence Proved.

6456.

What #18 flat cord that can be plug in​

Answer»

ssssssssssssssssssssssssssExplanation:I can't UNDERSTAND this question.pls TELL me CORRECTLY.

6457.

Why lightinigs will come​

Answer»

In the early stages of DEVELOPMENT, AIR acts as an insulator between the positive and negative charges in the CLOUD and between the cloud and the GROUND. When the opposite charges build up enough, this insulating capacity of the air breaks down and there is a rapid discharge of electricity that we KNOW as lightning.

6458.

Draw the FBD of object moving on inclined plane​

Answer»

tion:REFER the diagram... body moving in inclinrd PLANE

6459.

Definition of the simple machine​

Answer»

tion:Simple machine, any of several devices with few or no moving parts that are used to modify motion and FORCE in order to perform WORK. The simple machines are the inclined plane, lever, WEDGE, WHEEL and AXLE, pulley, and screw.

6460.

How can we find the molality​

Answer»

wdrfyvrx2e5hybtceswetdwaadrcyces1e3sw1w4wssggyuo u9iirxedtvtd

6461.

Synthetic substance apart from fibres are called​

Answer»

Rayon is different from synthetic fibres because. (a) it has a silk LIKE appearance. (b) it is obtained from wood pulp. (c) its fibres can also be woven like those of natural fibres.PLEASE MARK AS BRAINLIEST

6462.

द सरफेस एरिया ऑफ एन ऑब्जेक्ट इज 20 मीटर स्क्वेयर एंड 4 सप्ताह एंड सप्लायर इन व्हाट इज द प्रेशर ​

Answer»

tion:4 d and 333 to 3646464yr64tetstdtr763646464yr64 6U

6463.

A racing car has a uniform acceleration of 4 m/ s2 . what distance will it cover in 10sec after start ? pls answer fast!​

Answer»

Uniform acceleration a = 4 m/s²Initial velocity U= 0 m/sTime t = 10 sec.Velocity v after 10 sec= u + a t = 0 m/s + 4 m/s² × 10 s =40 m/s.We shall calculate the distance covered by all possible methodsUsing Average Velocity:Initial velocity u= 0 m/sFinal velocity v= 40 m/sAverage velocity= ½( u +v) = ½ ( 0+40)= 20 m/sTime= 10 sDistance covered in 10 s= av. VEL. × time= 20m/s × 10S = 200 mUsing the relation s = u t+ ½ a t²u = 0 m/s, a = 4 m/s², t= 10 sec.s = 0×10 + ½ 4× 10² = 200 mUsing the relation v² - u² = 2 a s,u = 0 m/s, v= 40 m/s, a= 4 m/s²s = 1/2 a ( v² - u²)= 1/2×4 ( 40² - 0²) = 1/8(1600–0)= 1600/8= 200 m.So all relations give the same results as it should.Explanation:MARK me as brainlieast

6464.

Give any two examples to prove that Vedic Civilization was quick a advanced​

Answer»

(1) WOMEN in the EARLY Vedic PERIOD enjoyed a respectable position. She was married after education and proper age, she had the right to choose her HUSBAND without parental force. She PARTICIPATED in the tribal communities sabhas and samitis. (2) Sudras category was absent in the early Vedic age

6465.

Please see the above questions and give the answer of second question only physics

Answer»

A) ANSWEREXPLANATION:DEEPANSHU don t have been a

6466.

What happens if there is no tension on objects like a rope or a string ​

Answer»

they will not be STRAIGHT and will BEND

6467.

5. Doctor's thermometer is another name for (a) clinical thermometer(b) maximum-minimum thermometer(c) laboratory thermometer(d) none of these​

Answer»

(A) CLINICAL thermometerPlz MARK it BRAINLIEST

6468.

Explain the experimental procedure to verify effect of roughness on frictional force​

Answer»

tion:Roll a ball along these surfaces. Record the time taken for the ball to come to REST and ALSO the distance travelled by the ball. From the recorded data, we will notice that value of speed drops with increase in ROUGHNESS. This is due to the FACT that FRICTION increases with increase in roughness.

6469.

The atmospheric pressure at sea level is nearly ​

Answer»

unds PER SQUARE INCH:)

6470.

fig 3.35 shows a brick of weight 2kgf and dimensions 20cm *10cm*5cm placed in three different positions on the ground.find the pressure exerted by the brick in each case

Answer» KYUN btaun MEIN phle FEES do
6471.

What is lever?(Answer in short)❤️​

Answer»

A lever is a simple machine made of a RIGID BEAM and a fulcrum. The effort (input force) and load (output force) are applied to EITHER END of the beam. The fulcrum is the point on which the beam pivots.PLEASE MARK BRAINIEST

6472.

A 150 m long train is moving with a uniform velocity of 45 km/h. The time taken by the trainto cross a bridge of length 850 metres is​

Answer»

A 150m long train is moving with a uniform velocity of 45km/h. The TIME TAKEN by the train to CROSS a bridge of length 850 metres is. Time=DistanceVelocity=100045×518=80sec.

6473.

(e) A circult showing electro plating in given below. A solution of silver nitrate( AgNO³) is electrolysed. A drop of dilutesulphuric acid is added to the solution)Study it carefully and answer thequestions given below:Metal(1) Why is H²SO⁴ added to the electrolyte (AgNO.)?(i) Name the metal XAnsIf the weights of plates X and Y are equal in the beginning, which plate will havegreater weight after sometime and why?​

Answer»

Basically in the silver PLATING method, the silver bar as the anode, the object is to be plated acts as the cathode and the double cyanide of POTASSIUM and silver acts as the electrolyte. When the direct ELECTRIC current is PASSED between the anode and the cathode, the POSITIVE silver ions (Ag + ) from the double cyanide of silver and potassium solution to the negative anode (the object), where they are neutralized by the electrons and stick to the object as silver metal.

6474.

The speed of light(c), gravitational constant (G) and Plank's constant(h) are taken as fundamental units in a system. The dimensions of time in this new system should be. pls answer it soon and don't spam ​

Answer» USE GOOGLE EXPLANATION:MARK as BRANLIST
6475.

When an object moves in circular path with uniform speed, its motion is called_______​

Answer»

Circular MotionExplanation:When an Object Moves in Circular PATH With Uniform SPEED, its MOTION is Called Circular Motion BECOZ It Moves Circular Path

6476.

14. Examples where the state of motion of objects changes in direction due to application of forcea) A car travelling with a velocity 60 kmph towards the North suddenly turnedtowards the West, keeping its magnitude constant.b) When a body is moving ina vertical circle from the bottom to the topc) Any body which is goind on any curved pathd) All the above​

Answer» SORRY I'm 6TH STANDARD
6477.

2. A physical balance is used for the measurement of (a) length(c) area(b) volume(d) mass​

Answer»

areaExplanation:I HOPE it HELPS you

6478.

A loaded lorry of mass 12000 kg mov velocity becomes 10 m/s after 5 s.1) What is the initial momentum and) What is the change in momentum?) What is the rate of change of mon explain​

Answer»

HIS SEEMS TO BE SO HUGE QUESTION. TRY TO POST QUESTIONS ONE BY ONE PLEASE.

6479.

4. Two objects of masses 100 g and 200 g are moving along the sameline and direction with velocitiesof 2 m s-land 1m sl, respectively.​

Answer»

gygftbddh xvcfgcfbbkjvcfjnvhExplanation:gbggjgunuiobjnfghhhbhfu

6480.

List the material required to verify effect of roughness on frictional force​

Answer» HOPE it HELPS you.....
6481.

In the adjacent figure what is the value of angle of refraction a.40 b .20 c.30 d.90​

Answer» B is the OPTION i THINK the ANSWER
6482.

CLARITY ACHIEVER Assertion (A) : Rest and motion are relativerelativeBoth (A) and (R) are true and (R) is the correct explanation onb) Both (A) and (R) are true but (R) is not the correct explanation of Ac)(A) is true but (R) is falsed) (A) is false but is theChoose the correct statement.a) Rest and motion are absoluteb) Rebsolute but motor is baiec) Rest is relative but motion is absoluteRest and motion andStatement (A): A person appears to be a real withStatement (B) : The same person is in men who um wheReason (R) : Those physical quantities which depend on the medias​

Answer»

tion:the assertion that , RESPIRATION in living beings is called exothermic reaction is completely true.When the carbon gas is expelled from the body during the respiratory activities, a significant amount of heat energy is also expelled form the body at the same time.This heat generation makes the respiration an exothermic PROCESS on the other hand.The reason that respiration in living begin involved with the ABSORPTION of heat energy is completely false .As mentioned above the heat energy is GENERATED by the REPRODUCTION process makes the respiration process an exothermic process And the exothermic process will never absorb heat energy

6483.

Brine is a concentrated solution of_______ ​

Answer»

Brine, SALT water, particularly a highly concentrated water SOLUTION of COMMON salt (sodium CHLORIDE).Explanation:NATURAL brines occur underground, in salt lakes, or as seawater and are commercially important sources of common salt and other salts, such as chlorides and sulfates of magnesium and potassium.

6484.

A 150 m long train is moving with a uniform velocity of 45 km/h. The time taken by the trainto cross a bridge of length 850 metres is8​

Answer»

what US to be FOUND???EXPLANATION:BRAINLIEST PLZ

6485.

Choose the incorrect statement based on the below figure ( ) A) The distance from P to Q and Q to P are equalB) The displacement from P to Q and Q to P are equalC) The displacement from P to P is zeroD) The sum of displacements from P to Q and Q to P is zero​

Answer»

BExplanation:DISPLACEMENT is a vector quantityso it has directionPQ vector= -QP vector so they are not EQUAL but if he gives magnitude equal then it is correct|PQ| = |QP|

6486.

Uniform speed is also known as​

Answer»

Speed is a measure of how fast an OBJECT is moving at a GIVEN instant of TIME. It is a scalar quantity. Its unit is m/s. For a BODY covering EQUAL distances in equal time intervals, the speed is called uniform speed.

6487.

A chemical substance which alters the speed reaction is_______​

Answer»

A CATALYST is a chemical SUBSTANCE which alters the SPEED of a chemical REACTION.

6488.

Please help me solving this ​

Answer» SEARCH in google EXPLANATION:i hope this will help you find the ANSWER
6489.

सबसे बड़ा डेरी मिल्क कितने रुपए का है​

Answer»

400Explanation:MARK as BRAINLIEST

6490.

Define the term efficiency of a machine.​

Answer»

The efficiency of any machine measures the DEGREE to which FRICTION and other FACTORS reduce the actual work output of the machine from its theoretical maximum. A frictionless machine would have an efficiency of 100%. A machine with an efficiency of 20% has an output only one fifth of its theoretical output.

6491.

The metal used as catalyst in haber's process is________​

Answer» IDE                             PROCESS of prometerhope it HELPED you
6492.

Why does the roughness influence the force of friction ​

Answer»

, it is important to STUDY other roughness parameters of surface texture and to correlate them with the coefficient of friction. The roughness PARAMETER CHANGES during surface PREPARATION, owing to texture and HENCE affects the coefficient of friction.

6493.

Please tell me all the answers I will mark as brainliest answer​

Answer» GIVE me MONEY I will SOLVE this for youfor more information CONTACT me on Instagram:- @manish_dalwani_
6494.

The ratio of distance and displacement between X & Y in the following figure is ( )A) 2/3 B) 1/2C) 3/2 D) 1/3​

Answer»

3/2it's is the CORRECT ANSWER

6495.

What are certain points to remember, if you are blogging?​

Answer»

tion:5 Important POINTS to Keep in Mind When Writing a BlogConsider the LENGTH of your blog. Just how long should a blog go for? ...Images. Every blog you write should be accompanied by at least ONE image. ...Take advantage of white space. ...Embrace SUBSECTIONS. ...Always proofread.

6496.

Examples where the state of motion of objects changes in direction due to application of force​

Answer»

A hockey player changes the direction of the MOVING ball with a flick of the stick. In all these situations the ball is EITHER made to move FASTER or slower or its direction of motion is CHANGED. We often SAY that a force has been applied on a ball when it is kicked, pushed, thrown or flicked

6497.

What are the units used to calculate the large​

Answer» PLEASE EXPLAIN this QUESTION ..
6498.

Use the knowledge of effect of roughness on frictional force in day to day life​

Answer»

How does roughness affect friction?Friction OCCURS because no surface is perfectly smooth. Rougher surfaces have more friction between them. HEAVIER objects also have more friction because they press together with greater FORCE. Friction produces HEAT because it causes the molecules on rubbing surfaces to move faster and have more energy.

6499.

What is force?what is energy?​

Answer»

force=it is a PUSH or pull that tends to EFFECT an OBJECT in some wayenergy=it is the ability to do workExplanation:

6500.

A magnet attracting a pin of iron which force​

Answer»

it is MAGNETIC forceExplanation:A magnetic FIELD is a vector field that describes the magnetic influence on an electric charge of other moving charges or MAGNETIZED materials. A charge that is moving in a magnetic field experiences a force PERPENDICULAR to its own velocity and to the magnetic field