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that r= L/p and from there this derivation COME L= r*p PLEASE MARK as brain list

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1) When a flat sheet of copper is heated the increase in its area is called superficial expansion.2) A bimetallic strip expands unequally on heating and bends.3) An iron rim of a slightly SMALLER diameter than a wooden wheel is heated so that it EASILY slips over wooden wheel.4) Small gaps are provided between the railway lines to prevent the bending of rails due to linear expansion in summers.5) New ELECTRIC wires for power transmission are kept slightly LOOSE, if laid during summer. This PREVENTS wires from snapping in winter.Explanation:plz mark me as brainliest

Mass is a property of matter. The mass of an object is the same EVERYWHERE. WEIGHT depends on the effect of GRAVITY. Weight increases or decreases with HIGHER or lower gravity.

nAn electric heater DRAWS a current of 4 A and its element has a resistance of 40 Ω. If heater is SWITCHED on for 8 minutes, calculate the energy released in kilojoules.AnswerCurrent = 4AResistance = 40Ωtime = 8×60 second HEAT = i to the POWER 2 Rt=16×40×8×60= 16×24×8×10 to the power 2÷1000×1000 = 307.2 K Joules

the particle = 50 kg Initial VELOCITY = 10 m/s Final velocity = 20 m/sAccording to the WORK - energy theorem, W = ∆KE = ½ m(v + U)(v - u) ⇒ W = ½ 50(20 + 10)(20 - 10) J ⇒ W = 25(30)(10) J ⇒ W = 7500 J or 7.5 kJ. ∴ Work done on the particle was of 7.5 kJ.

These unit vectors are COMMONLY used to INDICATE DIRECTION, with a SCALAR coefficient providing the magnitude

The word displacement IMPLIES that an object has moved, or has been displaced. ... Displacement is a VECTOR. This means it has a direction as well as a magnitude and is represented visually as an ARROW that points from the INITIAL position to the FINAL position.

here is ur answer ....1. HYDROPOWER plants are places where the generation of electricity takes place with the help of water. When the moving water, possessing some kinetic energy, hits the turbine present in the dam, the kinetic energy of the water gets CONVERTED into mechanical energy. This mechanical energy moves the turbines and then, ultimately, it leads to the production of electrical energy.2. WINDMILLS form one of the good examples of applications of kinetic energy. In a windmill, when the wind (air in motion) hits the blades, it causes the rotation, which ultimately leads to the generation of electricity. Here, the moving air has kinetic energy that causes the rotation of blades, and therefore, in this example too, the kinetic energy is converted into mechanical energy.3. Moving cars possess some amount of kinetic energy. This is because they have some MASS and velocity. Recalling the formula of kinetic energy, we now know that while comparing a truck and a car moving on a road with the same velocity, we will come to the conclusion that the truck will have higher kinetic energy because of its large size. Since kinetic energy is directly proportional to the mass of the moving object, therefore, a truck will have more kinetic energy than a car.4. A bullet fired from a gun has very high kinetic energy, and, so, it can easily penetrate any object. This is because of a large amount of velocity POSSESSED by the bullet. Although the mass of the bullet is less, its high speed renders double the amount of kinetic energy.hope this will help uh ....

Hydrochloric acid is a NECESSARY acid in body, especially in our stomach. Hydrochloric acid does not CONSIDER as organic acid because of the absence of carbon in it. HOPE it helps you :3

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A plane mirror is a mirror with a FLAT (planar) reflective surface. For light rays striking a plane mirror, the angle of reflection EQUALS the angle of incidence. ... Plane mirrors are the only type of mirror for which a real object always produces an IMAGE that is virtual, erect and of the same SIZE as the object.Explanation:Hope this helps U ❣Gudeving☺Pls Flw me ☹Thanks = thanks ☹✌ITZ AbUsiNg QuEeN ✌

e is good, steel or stainless steel should also work ok and MAY be preferred if you NEED LESS heat and more strength.❝ ♥️ NISHTHA here ❤️❞¯\_(ツ)_/¯

4:1 is the ANSWER .

is FORMED by the rectinelinear PROPAGATION of LIGHT HOPE this will HELP you

:- Given - ENERGY = 1000 J Force = 50 N To FIND :- Displacement Solution :- We know that, Work = Force × Displacement Here, we are given work ( or energy ) and force. So by substituting the values we can get displacement. ➩ Work = Force × Displacement ➩ 1000 = 50 × s ➩ 50s = 1000➩ s = 1000/50➩ s = 20 m Displacement = 20 m

tion:The PISTON in a GASOLINE engine goes up and down 3,000 times per minute. For this engine, calculate the FREQUENCY and period of the piston. F = 3000cycles/min = 3000/60 = 50HZ.

Newton's Laws Applied to Collisions. Newton's third LAW of motion is naturally applied tocollisions between TWO objects. ... Thus, if the COLLIDING objects have UNEQUAL MASS, they willhave unequal accelerations as a result of the contact force that results during the collision.

The simplest normal MODE, where the string vibrates in one loop, is labeled N = 1 and is called the FUNDAMENTAL mode or the first harmonic. The second mode (n = 2), where the string vibrates in two loops, is called the second harmonic.

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Electronegativity, SYMBOL χ, measures the tendency of an atom to ATTRACT a shared PAIR of electrons. An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleusExplanation:mark me brainlist

ResistanceExplanation:I HOPE my ANSWER is HELPFUL for you

The Principle of Moments STATES that when a body is balanced, the TOTAL clockwise moment about a POINT EQUALS the total anticlockwise moment about the same point.

1a : conforming to a type, standard, or regular pattern : characterized by that which is CONSIDERED usual, typical, or routine normal working HOURS under normal circumstances It was just a normal, average DAY. He had a normal childhood. Their REACTION to the news was normal and expected.Explanation:HOPE it helps you

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ghhExplanation:4. The circuit DIAGRAM is given below:a) Using NODAL ANALYSIS find v,? (in Volts)b) Using nodal analysis find v,? (in Volts)o Using nodal analysis find vz? (in Volts)d) Find current i in the NETWORK? (in A)e) Find power generated/delivered/supplied by the 6 A current source (in W)Find power generated/delivered/supplied by the 3.5 A current source in W.

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A boy runs on a straight ROAD from his HOME to a market 2 0km away with a SPEED of 4km/h Finding the market CLOSED ,he at once runs back to his home ...

International System of Units (SI), FRENCH Système International d'Unités, international DECIMAL system of WEIGHTS and measures derived from and extending the metric system of units.

12Explanation:HOPE this will HELP you

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5vkjalay Jr HIGH and then I can do it LIKE me or something and then I can Explanation:HF at work now and then

membrane is POROUS in nature because with the help of this pores MANY usefull particles go inside it and by DIFFERENT biological PROCESS we get the energy and also HELPS to throw waste products outside from plasma membrane

I am trying to help you Explanation:OK TOMORROW I am GIVEN the answer