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The factors which affect friction are:

The weight of the objective. That is the normal reaction which the surface applies on the object. For example it is always difficult to push a heavier object than a lighter one.

The coefficient of friction. That is the type of surface . For example wood has a rough surface which means higher coefficient of friction resulting in higher friction. And a smooth ice surface has a lower coefficient of friction resulting in less friction.Please like the solution 👍 ✔️

Friction depend only on smoothness of contacting surface.it indirectly also depends on amount of surface area in contact and also on magnitude of forces holding up the body.

The factors that affect friction are as follows:-

Surface on which the object is moved or the nature of the surface. i.e., rough surface, smooth surface, liquids etc

The weight of the object or the amount of force on the surface by the object

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X is equal to 35° is right answer

35 is the right answer.

35 is the right answer

85° is the correct answer of the question

Material Handling Equipment. ... Thefactors affecting the selection of materials handling equipmentare: Adaptability: the load carrying and movement characteristics of theequipmentshould fit thematerials handlingproblem.

The ultimate aim is to arrive at the lowest cost per unit of material handled. Equipment factors to be taken into consideration may well include the following: Adaptability: the load carrying and movement characteristics of the equipment should fit the materials handling problem.

The following factors are to be taken into account while selecting material handling equipment. Whether it is solid, liquid or gas, and in what size, shape and weight it is to be moved, are important considerations and can already lead to a preliminary elimination from the range of available equipment under review.

this question answer is 10^-6m

thanks

Transformers are works on the principle of electromagnetic production.2)Electrical generators works on the principle as electro magnetic induction.3)Security check at airports. railway stations.4) Tape recorders use to record voices or listen songs works on the principle of electromagnetic induction.5)ATM cards and swiping machines are also the application of law of electro magnetic induction.

Scientists use lenses and mirrors in tools such as telescopes and microscopes.

People use mirrors and lenses for safety. Auto manufacturers place mirrors on the sides of vehicles

use mirrors in energy and affirmation techniques

Fashion designers use mirrors to look at their clothing or accessories from multiple angles at once.

orbital velocity. noun. Thevelocityat which a body revolves about another body. The minimumvelocityrequired to place or maintain a satellite in a givenorbit.

velocity of image will be increased by twice if mirror is coming close to it by some value

so, when mirror is at rest

Vimage = -3i+j-4k ...... ( j and k will be same )

when mirror is moving

so , Vimage = i(-3-4) +j-4k = -7i+j-4k

Sound is transmitted through gases, plasma, and liquids as longitudinal waves, also calledcompression waves.

v=(100+-5)a

I=(10+-0.2)a

R=V/I =100/10=10Ω

ΔR/R=+_[ΔV/V+ΔI/I]

=+_[5/100+0.2/10]

=+_[7/100]

=+_0.07

ΔR=R*0.07

=+_0.07*10

=0.7 ohms

Percentage errorΔR/R*100=+_0.07*100=+_7 percent

option b) Average or mean value of a sinusoidal signal, Vav = 2*(Vpeak) / piand RMS value is Vrms = Vpeak / sqrt(2)therefore, Vav / Vrms = 2*sqrt(2) / pi

Well, the reciprocal of this ratio i.e., Vrms / Vav is called Form Factor and is approximately equal to 1.11 for sinusoidal signal.

Form factors can be useful in calculating RMS values for practical or design purposes when you know average value and vice versa.

by using logarithms table

please solve using by logtable

The converging lens is used to form a real image. As against, a virtual image is produced with the help of a diverging lens. The concave mirror is used in producing a real image. However, virtual images are produced by a plane mirror, convex mirror and sometimes by concave mirror also.

(iv) is correct option

Concave mirror produces both virtual and real image

concave mirror used by dentistsconvex mirror used in vehicles

X=14, x=1 is the best answer

X=14/x=1 correct answer

2 no. is the best answer

it's answer (x - 1) (x - 14) real answer

x^2 - 15x + 14 = 0x^2 - 14x - x + 14 = 0x(x - 14) - 1(x - 14) = 0(x - 14)(x - 1) = 0x - 14 = 0. x - 1 = 0x = 14. x = 1

x=14,x=1is the best answer

(x-14) (x-1) right answer

X=14, X=1 is correct answer

(I) (x+14) (x+1) currect answer your question

(x+14) (x+1) answer your question

X²-15x+14=0x²-14x-x+14=0x(x-14)-1(x-14)=0(x-14) (x-1)=0x=14,x=1 Answer

(x-14)(x-1) is the right vale

x = 14 , x = 1 answer

x^2-15x+14=0so (x-14)(x-1)=0therefore x=14 and x=1

x=14x=1 is the right answer

eska answer (x-14)(x-1) hai

x=14 x=1 may be it's a correct answer

(x-14)(x-1) to this question

(x-14) (x-1) is the solution

X=14, X=1 is the correct answer

x²-15+14=0x²-x-14x+14=0x(x-1)-14(x-1)=0(x-1)(x-14)=0x=1 or x=14

(X+14) (x+1)is the right answer

(x-14)and (x-1) is the correct answer

A lever is a beam connected to ground by a hinge, or pivot, called a fulcrum. The ideal lever does not dissipate or store energy, which means there is no friction in the hinge or bending in the beam.

Meter bridgeis based on the principle of wheatstone bridge.In this bridge one lateral pair of resistances is replaced by a straight wire of length 1m of uniform cross section. And other pair consist of one known and one unknown resistance. One side of a galvanometer is connected between known ad unknown resistance and other side is moved along the wire to find the null point i.e. at which galvanometer doesn't show any deflection. This point balances the bridge.

sand will remain left in the filter paper

A meter bridge is used in finding the unknown resistance of a conductor as that of in a Wheatstone bridge. A Wheatstone bridge is a kind of electrical circuit used in measuring an electrical resistance which is unknown by balancing its two legs of the bridge circuit, where one of the legs includes unknown component

a simple circuit for measuring an unknown resistance by connecting it so as to form a quadrilateral with three known resistances and applying a voltage between a pair of opposite corners.

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Wheatstone bridgecircuit diagram. The unknown resistanceRxis to be measured; resistancesR1,R2andR3are known andR2is adjustable. If the measured voltageVGis 0, thenR2/R1=Rx/R3.

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This articleneeds additional citations forverification.

AWheatstone bridgeis anelectrical circuitused to measure an unknownelectrical resistanceby balancing two legs of abridge circuit, one leg of which includes the unknown component. The primary benefit of the circuit is its ability to provide extremely accurate measurements (in contrast with something like a simplevoltage divider).[1]Its operation is similar to the originalpotentiometer.

The Wheatstone bridge was invented bySamuel Hunter Christiein 1833 and improved and popularized by SirCharles Wheatstonein 1843. One of the Wheatstone bridge's initial uses was for the purpose ofsoils analysisand comparison.[2]

CONDITION FOR SUSTAINED INTERFERENCE OF LIGHT. ... Thetwo interferingsources must be coherent, that is, they must keep a constant phase difference. Thetwo interferingsources must emit thelightof the same wavelength and time period.

the rise in temperature of bath =40-18 +_(0.5+0.3)=(22+_0.8)° C

Ans :- Slidetransitionsarethe animationeffects that are applied to whole slide whereas animationeffects are applied to objects (text, shape, picture etc.) on a slide. For a slide you can have only onetransition effect while each object ontheslide can have multipleanimationeffects.

An isothermal process is a change of a system, in which the temperature remains constant: ΔT = 0.

this is wrong ans

The second image is the brightest.

how

It is the explanation for the answer. It is not wrong.

yes

but how

In the case of a thick plane mirror, reflection takes place at the two surfaces, (top and bottom surfaces) and images are formed due to both. The second surface is silvered and therefore the second image is the brightest. Further images are formed due to multiple reflections and due to absorption of light by medium the images become fainter. If the front surface of the mirror is silvered, only one image will be formed.

sorry

Since distance is constant we have to use harmonic mean to calculate the average speed of the motorcycle2ab/(a+b)a=speed from A to B=30km/hb=speed from B to A=20km/h2*30*20/(30+20)2*600/502*1224km/hThe average speed of the motorcycle is 24km/h

You should use the gas law here PV=NRT. Boyle's law is the LHS, supposes a constant amount of substance and temperature.

If you are adding air to the balloon, then V/N is constant, and the balloon expands because it's getting more air.

If you are squashing the balloon then the shape changes.

Understand that the balloon is like a piece of elastic, and the pressure inside the balloon is what is stretching it, so the pressure in the balloon is higher than outside.

It's very unlikely that pressure would be proportional to volume. What happens is more like in a cup, where the depth (ie P) and surface area (V) give a constant measure (eg volume of water), and were they proportional, then increasing the pressure and volume would mean that you would be adding to NRT at the square

As, R = p L/A

and , R = 5 ohm ; L= 15m ; A = 6×10^-7m^2

So, resistivity, p = RA/L = 5×6×10^-7/15

or, resistivity , p = 2×10^-7 Ώm

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1061106 is the answer

Given that:u=(-6)cmv=(+24)cm,Formula:1/f=1/u + 1/v1/f=1/(-6) + 1/241/f=-1/6 + 1/241/f=-24+6/144therefore,f=144/(-18)f=(-8)cmradius = 2×(-8)=-16cm

image distance from the concave lens v = _15 where did he came sir

sir ican under stand

options D is right answer

a correct answer is (C)

option D is the right answer

G on earth = 9.8 m/s2g on moon = 1/6 * 9.8 = 1.6 m/s2So weight on moon = 5kg * 1.6 m/s2 = 8N

Pressure at the point inside the liquid is directly proportional to the depth, density of the liquid and acceleration due to gravity. It does not depend on the shape and size of the vessel containing the liquid.