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Let the initial velocity of the OBJECT = u

Let the object is moving with uniform acceleration, a.

Let object reaches at point B after time, t and its final velocity becomes, v

Draw 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.



Let OE = time, t

Now, from the graph,

BE = AB + AE

⇒ v = DC + OD (Since, AB = DC and AE = OD)

⇒ v = DC + u (Since, OD = u)

⇒ v = DC + u ------------------- (i)

Now, Acceleration (a) =Change in velocityTime taken=Change in velocityTime taken

⇒a=v−ut⇒a=v-ut

⇒a=OC−ODt=DCt⇒a=OC-ODt=DCt

⇒at=DC⇒at=DC -----(ii)

By substituting the value of DC from (ii) in (i) we get

v=at+uv=at+u

⇒v=u+at⇒v=u+at

Above equation is the relation among initial vlocity (uu), final velocity (vv), acceleration (a) and time (t). It is called first equation of motion.

Equation for distance –time relation

Distance covered by the object in the given time ‘t’ is given by the area of the trapezium ABDOE

Let in the given time, t the distance covered by the moving object = s

The area of trapezium, ABDOE

= Distance (s) = Area of △ABD+△ABD+ Area of ADOE

⇒s=12×AB×AD+(OD×OE)⇒s=12×AB×AD+(OD×OE)

⇒s=12×DC×AD+(u+t)⇒s=12×DC×AD+(u+t)

[Since, AB=DCAB=DC]

⇒s=12×at×t+ut⇒s=12×at×t+ut

⇒s=12×at×t+ut⇒s=12×at×t+ut

[∵ DC=atDC=at]

⇒s=12at2+ut⇒s=12at2+ut

⇒s=ut+12at2⇒s=ut+12at2

The above expression gives the distance covered by the object moving with uniform acceleration. This expression is known as second equation of motion.

Equation for Distance Velocity Relation: Third equation of Motion:

The distance covered by the object moving with uniform acceleration is given by the area of trapezium ABDO

Therefore, Area of trapezium ABDOE

=12×(SUM of parallel SIDES+distance between parallel sides)=12×(sum of parallel sides+distance between parallel sides)

⇒ Distance (s) =12(DO+BE)×OE=12(DO+BE)×OE

⇒s=12(u+v)×t⇒s=12(u+v)×t ----(iii)

Now from equation (ii) a=v−uta=v-ut

∴t=v−ut∴t=v-ut ----(iv)

After substituting the value of tt from equation (iv) in equation (iii)

⇒s=12(u+v)×(v−u)a⇒s=12(u+v)×(v-u)a

⇒s=12a(v+u)(v−u)⇒s=12a(v+u)(v-u)

⇒2as=(v+u)(v−u)⇒2as=(v+u)(v-u)

⇒2as=v2−u2⇒2as=v2-u2

⇒2as+u2=v2⇒2as+u2=v2

⇒v2=u2+2as⇒v2=u2+2as

The above expression gives the relation between position and velocity and is called the third equation of motion.

While solving the problems related to velocity, distance, time and acceleration following three POINTS should be considered:

Motion along a circular path:

Motion of an object along a circular path is called circular motion. Since, on a circular path the direction of the object is changing continuously to keep it on the path, the motion of the object is called accelerated motion.



Velocity in the case of circular motion.

If the radius of circle is rr

Therefore, circumference =2πr=2πr

Let time tt is taken to complete one rotation over a circular path by any object

∴ Velocity (v)=Distancetime(v)=Distancetime

⇒v=Circumferencet⇒v=Circumferencet

⇒v=2πrt⇒v=2πrt

Where, v = velocity, r = radius of circular path and t = time

Motion of earth around the sun, motion of moon around the earth, motion of a top, motion of blades of an ELECTRIC fan, etc. are the examples of circular motion.

The SI UNIT of DENSITY is kg/m^3..

The dimension of the units of a derived physical quantity MAY be defined as the NUMBER of times the fundamental units of mass, length and time appear in the physical quantity. The expression for VELOCITY obtained above is said to be its dimensional FORMULA.

1.rest
2.rest
3.motion

Here is your ANSWER

1.6×10^-19 C

The body doesn't become weightless in the sense that you actually lose matter from the body, that would be disastrous.

What happens instead that the "APPARENT WEIGHT" changes. This phenomenon was FIRST EXPLAINED by Archimedes and is called, "Archimedes' Principle."

We have

Resistance= RESISTIVITY x LENGTH/area

When the wire is stretched to double the length , the area of CROSS SECTION GETS reduced to half.

So

New Resistance = Resistivity x 2length/area/2

I.e,

New resistance = (Resistivity x area/length)x4

i.e, New resistance = Resistance x 4

So when the wire is stretched, the resistance multiplies by four times.

It is CLEAR that an angle of DEVIATION has the minimum value 'δm' for only one value of the angle of INCIDENCE. The minimum value of the angle of deviation when a RAY of light passes through a PRISM is called the angle of minimum deviation.

Hello friend...!!!

⇒ the dimensional formula of gravitational constant : [M⁻¹L³T⁻²]

⇒ the dimensional unit of energy(E) : [ML²T⁻²]

⇒ the dimensional unit of density(D): [ ML⁻³]

⇒ the dimensional unit of power(P) : [ML²T⁻³]

now,

G =  X  x 

[M⁻¹L³T⁻²]  = [ML²T⁻²]ᵃ x [ ML⁻³]ᵇ x [ML²T⁻³]ⁿ

⇒ [M⁻¹L³T⁻²] = M⁽ᵃ ⁺ ᵇ ⁺ ⁿ ⁾  x L⁽²ᵃ ⁻³ᵇ ⁺²ⁿ⁾ x T⁽⁻²ᵃ ⁻³ⁿ ⁾

comparing both LHS and RHS , we get ,

a + b + n = -1 

2A -3b +2n = 3 

-2a - 3n = -2

by solving these three linear equations we get ,

a = -2 and b = -1 and n = 2

therefore ,

G =  x  x 

implies ,

G =[ E⁻²D⁻¹P²]

G = [  ]


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hope it helps...!!!

It should have FIVE VOLTS of ENERGY

The ANSWER is y=x-1
I HOPE it HELPS

Here is u r answer.
◆◆◆
the electric POTENTIAL at a point in an electric field is defined as the work DONE moving a unit positive charge from INFINITY to that point.the si unit Joule.
ok it s help u BROO...
....

When SWITCH is CLOSED than don't FLOW current
so, the AMMETER READING 0ampere

V=60v
Current, i=4A
According to OHM's LAW R=V/I=60v/4A
=15 ohm
I=120/15=8Aempher

Hey here is ur answer frnd....

YES SPRING balance is used for measuring the weight....

HOPE this HELPS you mark this answer as brainlist answer if you like it....

thankyou...#priya369

If a train starts from stationary position then initial velocity of train = 0 
moving uniform acceleration MEANS constant acceleration .
given , FINAL velocity ( V) = 36 km/h = 36× 5/18 = 10m/s 
TIME taken = 10 minutes = 10× 60sec = 600sec 
USE KINEMATICS equation , 
V = u + at 
10 = 0 + a × 600 
a = 10/600 = 1/60 m/s² 
a = 0.1667 × 10^-1 m/s² = 1.67 × 10^-2 m/s² 

2:3 is the CORRECT ANSWER.

To SEE the ANSWER, PLEASE see the GIVEN picture.
This will HELP you.

Hey!!!

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It's a WELL said provoke, The first thing = The words after they are said cannot be recovered means that once you have hurt any person with your words then it is not possible to take back your words and resolve the issue. Words are LIKE arrows once released never return. People who have the habit of speaking a lot and cannot control on what they speak and whom they speak at what time suffer a lot. Thus it is adviced to think thrice before saying/uttering any words, it may hurt someone.

Second provoke is also as important as the other. It is said that one should not wait for opportunities but perhaps create them. The moment you can change your life comes only once. The moment you can be an opportunist come only once. Whenever such an opportunity knocks your door, grab it with both hands and utilise the maximum out of it.

The last provoke is the most important for any teenager. Time is the most sl*ttish thing of the World. It could make you a king overnight or a BIGGER. For example, you've a weekly test next week and you keep postponing its preparation because you feel that it'll be completed on time but most of the time we FAIL to COMPLETE it!. Similarly the time to create your future with your hands does not return again. What returns is called "Regret". The regret that why we didn't use that golden time to nurture our future.


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Hope this helps ✌️✌️

Electric Charge- It is the intrinsic property of matter that CAUSES ELECTRO and magnetic field.
Where as, ELECTRO STATIC MEANS the branch of science in which we STUDY about charge at rest

This MUCH i have DONE rest TRY UR own plz

Answer:

Electric force, F = 1.6 × 10⁻¹⁰ N and its direction is inwards

Explanation:

It is given that,

NUMBER of electrons, e = 10⁶

TOTAL charge,

Electric field, E = 1000 N/C

Electric force is given by the product of electric charge and electric field.

i.e. F = q E

As the electrons are negatively charged particles. The direction of electric filed for electrons is NEGATIVE.

Range is the same for A and B,

HEIGHT H = (u sin a)^2/ 2G .( Use the equation v^2 - u^2 = 2as)

Ha/Hb = (sin 30/ sin30)^2 = 1/1

your answer is "1:1"

HOPE it will help you..

Hydrometer method is used to determine the particle SIZE distribution of fine-grained SOILS PASSING 75 clip_image001 sieve. The hydrometer MEASURES the specific  ...

Hey

dudr.

here is your ANSWER



Basically the PURPOSE of disk brakes is to slow down or to stop the vehicle with the HELP of frictional force ... Thus we can say the frictional force COMES into play for stopping the vehicle.

There are a number of different and VARIED methods of providing protection from lightning strikes, and the selection of which methods to use is a critical one. Clearly, a chemical factory, a facility handling FLAMMABLE materials, or a computer data center with millions of dollars worth of electronics, should be very concerned with the DAMAGE caused by a lighting strike. A warehouse HOLDING non-flammable items, a GARAGE, a simple office building, etc., may not be so concerned.

The ANSWER to that QUESTION is WRONG

If a conductor ACCEPTS or gains the ELECTRONS, then it is an acceptor... nd if a conductor DONATES or loses the electrons, then it is a donor...

We can use computer VISION to EXPLOIT this semi-rigid structure and extract features to quantify the human body. These features can be passed on to machine learning MODELS that when trained can be used to detect and track humans in images and video streams. This is especially useful for the task of PEDESTRIAN detection, which is the TOPIC we’ll be talking about in today’s blog post.

We should also make SURE the steam doesn't undergo phase change on the turbine. If it happens so, it would RESULT in CAVITATION and PITTING and is threat to the turbine. Having condenser pressure very low increase the chances of phase change.

What are you TALKING about

This is because the stern Gerlach experiment involves sending a BEAM of silver atoms through an inhomogeneous magnetic FIELD and observing their DEFLECTION. The experiment is normally conducted using electrically NEUTRAL particles such as silver atoms.

Heyy friend.
.
like any other wave light also FOLLOW the law of REFLECTION when bouncing off the surface.And this REFLECTIVE BEHAVIOR of light provides evidence for the wave like nature of the light.... .
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hope it will HELP u

Make sure the suspected CAPACITOR is fully discharged.
Take an AVO meter.
SELECT ANALOG meter on OHM (Always, select the higher range of Ohms).
Connect the Meter LEADS to the Capacitor terminals.
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To  CALCULATE spring wire length percoil, you must subtract the wire diameter from the outer diameter in order to get MEAN diameter. Once you have calculated mean diameter, multiply it by pi (3.14); this will GIVE you the length of wire per coil.
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Two Gears

Start with a two-gear TRAIN. To be able to determine a gear ratio, you must have at least two gears engaged with each other — this is called a "gear train." ...Count the number of TEETH on the drive gear. ...Count the number of teeth on the driven gear. ...DIVIDE ONE teeth count by the other.
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The subscript number USED in the expression simply indicates which layer is meant, with the numbering beginning at the TOP of the pavement structure. The VARIABLES represent the following: a = a layer COEFFICIENT that represents the relative strength of the MATERIAL. D = layer thickness in inches.