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Let us consider an object which is projected vertically upwards with initial velocity  u which reaches a maximum height h.
Acceleration due to gravity=-g
Equation of Motion for a body projected THROWN upwards :
V=u-gt----------(1)
h=ut-1/2gt² -----------(2)
v²-u²=-2gh --------(3)

Equations of motion for freely falling body :
for free fall : 
Initial velocity=u=0
g=g
V=gt----------(4)
h=1/2gt²-------(5)
v²=2gh------(6)
Time of Ascent is the time taken by body thrown up to reach maximum height h 
At maximum height , V=0

Equation (1) turns to u=gt1
t1=u/g  ----------(7)
Maximm height h=u²/2g ----------(8)

Time of DESCENT : After reaching maximum height , the body begins to travel downward like free fall
so equation (5) h=1/2gt₂²
t₂²=2h/g
t₂=√2h/g
but from equation (9)
t₂=√2xu²/2g²
t₂=u/g -----------------equation (10)
∴t₁=t₂
The time ascent is equal to time of descent in case of bodies moving under gravity.

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* The animals possess a great ABILITY to camouflage
* There are ALSO a LOT of nocturnal creatures
* The animals ADAPT limited diets so they do not face competition for food
* The animals also have bright and strange patterns on their bodies to scare predators

Thermodynamics is a BRANCH of PHYSICS CONCERNED with heat and temperature and their RELATION to other forms of energy and work.
hope it helps

Hybrid-pi MODEL. The hybrid-pi model is a popular CIRCUIT model used for analyzing the SMALL SIGNAL behavior of bipolar junction and field effect transistors. Sometimes it is ALSO called Giacoletto model because it was introduced by L.J. Giacoletto in 1969.

Current density is a measure of the density of an electric current. It is defined as a vector whose MAGNITUDE is the electric current per cross-sectional area. In SI units, the current density is measured in AMPERES per SQUARE METRE.

An easy-to-follow explanation of how lenses bend light, INCLUDING the two main types of lenses: concave and convex. ... Let's take a closer LOOK at what they are and how they work! Photo:Lenses in the headlamps of this CAR focus beams of light down onto the road so you can SEE where you're GOING.

G=m1m2/r^2............... ...

No not ALWAYS only in some CASES LIKE in TALK

I THINK it helped.If I am WRONG I am SORRY

The force and motion is used with people around US by walking,RUNNING,cycling or any other KIND of doing WORK

D is UR ANSWER. .........

It is so if the the OBJECT is ALREADY in MOTION when GONE UPWARDS..

It is a PHENOMENON which PLACE all the CLOCK READING in same HISTORY

F=ma

The MATHEMATICAL equation of Newton's 2ND law.

Where m is mass of the object and a is the acceleration.

Acceleration, a=v(velocity)/t(time),its S.I. unit is m(metre)/s(second)^2

Where v=s(displacement)/t(time),its S.I.unit is m/s.

Displacement is defined to be the change in POSITION of an object. It can be defined mathematically with the following equation.

∆x=xf-xi

∆x-Displacement

xf-final position of the body

xi-initial position of the body

Displacement's S.I. unit is metre(m) ,which is a dimension.

Displacement is a vector QUANTITY.

Electrical current can be carried by conduction ELECTRONS, or by 'holes'.

For ordinary matter, there is ROUGHLY ONE electron per two daltons of matter, which is to say, 12NAe12NAe. This roughly works out at 480∗106480∗106 coulombs per kilogram. Many of these electrons are bound in the inner orbitals, but there are still plenty of conduction electrons per kilogram, that a 10-ampere current is not going to move in a day.

The bulk of electric current is then carried by random jumps of a very tiny amount of conduction electrons, which slush through the metal, or a similar process of an ABSENCE of electrons (holes), bubbling the other way through the metal, under the effect of EE along the conductor. The exact nature of the carrier is found by the Hall effect.

The field, on the other hand, travels very fast. But it is a field, not a flow of electrons. This MAINLY happens, from each segment of the wire, and is replenished by similar currents started in the previous segment of wire.

The energy is carried outside the conductor, in the poynting vector. The purpose of the conductor is to shape these fields.



3. Law 3 states that if a third METAL, C, is inserted at one of the junctions, the e.m.f. is unchanged PROVIDED that both of the new junctions are at the same temperature. This means that a third MATERIAL may be used to braze thethermocouple materials together WITHOUT affecting the MEASUREMENT.

We know, in case of PLANE mirror ,
|Object distance|= | image distance |
⇒ Xom = - Xim
Here, Xom is object distance with RESPECT to mirror
Xim is image distance with respect to mirror.

now, difference with respect to time ,
⇒dXom/dt = - dXim/dt
⇒Vom = - Vim
If mirror doesn't move Vm = 0
Then, Vo = - Vm
MEANS , if I run towards a plane mirror with speed 2m/sec then, my image also runs towards mirror with speed 2m/sec but in opposite direction.
HENCE, total DECREASES in distance between my position to image position = 2 × 2 = 4m

Hence, answer should be 4 m

<P>"MAXIMUM percentage error in the KINETIC Energy K is

Solution:

We know that,

Kinetic Energy,

Where, m = mass of the BODY and v = velocity

Now, Obtaining the Formula in terms of the Momentum.

Hence, p = mv

Therefore,

Hence, TAKING Logarithms on both the sides of the above equation.

Now, differentiating the both sides of the equation, we get

"

Because AIR CONTAINS SMALL PARTICLES

The CONVERSION is -
K = 273° + C

Amplitude :- maximum displacement from mean position of particle is known as amplitude . Let a function y = f(x) is a periodic Function. And we TRY to find what is amplitude of it ?
FIRST of all you should find out range of y = f(x) , for better understanding , I assumed range ∈[a , b] then, amplitude will be (b - a)/2 .

For example :- y = 3sinx + 4 cosx ,is a periodic function and find amplitude of it ?
You should find range of it
you see y belongs to [ -5, 5]
because y = 3sinx + 4cosx = 5sin(x + arctan(4/3))
and you know, sine lies -1 to 1
So, 5sin(x + arctan(4/3)) lies -5 to 5
Hence, range ∈ [ -5, 5]
Now, amplitude = (5 + 5)/2 = 5

Period :- a function y = f(x) , repeating a specific curve in a definite INTERVAL of then imterval of x is known as period of function y = f(x)
Example :- y = sinx is periodic Function . And it's period is 2π. Because graph of y= sinx repeating in every 2π interval .

For finding Period use F(x) = f(x + T)
Where T is period of function F(x)
Example :- y = sin2x , find period ?
sin2x = sin(2x + 2T)
sin(2π + 2x) = sin(2x + 2T)
2π + 2x = 2x + 2T
T = π ,
Hence, period of function is π.

well this concepts have so much demerits .
so , you should memorize some important terms
1. Sine, cosine , cosecent , secent ⇒ period 2π
2. Tangent, cotangent ⇒ period π
3. Period of exponential function is 1
4. Period of constant is 1
5. Period of sin(ax + b) , cos(ax + b), sec(ax + b), cosec(ax + b) = 2π/a

And MANY more concepts are appear for period ..you should check 11th book for more details.

Metals usually gain more heat like IRON and also heavier than non metals like sodium.
....HOPE it HELPS you

As K= C'/C
C' =KC
Where
C is CAPACITANCE in vaccum
C' is capacitance in medium
and K is DIELECTRIC constant


Hope you got the information..

God is CAPABLE of accurately relaying His WORD to us in a way that we can understand. It is crucial that we INTERPRET properly to determine the intended meaning rather than FORCING ideas into the text.

When we WANT to take out FINAL VELOCITY we use the formula

The Moment of a force is a measure of its tendency to cause a body to rotate about a specific POINT or axis. This is different from the tendency for a body to move, or translate, in the DIRECTION of the force. In order for a moment to develop, the force must ACT upon the body in such a MANNER that the body would begin to twist. This occurs every time a force is applied so that it does not pass through the centroid of the body. A moment is due to a force not having an equal and opposite force directly along it's LINE of action.

Imagine two people pushing on a door at the doorknob from opposite sides. If both of them are pushing with an equal force then there is a state of equilibrium. If one of them would suddenly jump back from the door, the push of the other person would no longer have any opposition and the door would swing away. The person who was still pushing on the door created a moment.

First of all, tide is the rise and fall of water caused by gravitational forces of the moon and sun on the oceans of the earth. Generally speaking, tidal cycles contain TWO high tides and two low tides  each day. During the time between high and low tide there will obviously be CURRENT flow.

This inertia, or centrifugal force, CAUSES the oceans to bulge on the opposite side facing the moon. While the moon's gravitational pull is strong enough to ATTRACT oceans into a bulge on the side of the earth facing the moon, it is not strong enough to overcome the inertia on the opposite side of the earth. As a result, the world's oceans bulge twice once when they are on the side of Earth closest to the moon, and once when they are on the side farthest from the moon, according to the Wood's Hole Oceanographic Institution in Wood's Hole, Mass.

hope it helps

Given,
Mass of body , m = 6 kg
displacement is the function of TIME , x = t²/4
∵ Workdone = force × displacement , but here no any external force ACT on body.
∴ we have to use ,
Workdone = Change in KINETIC energy

Now, x = t²/4
differentiate x with respect to time ,
dx/dt = 2t/2 = t/2
We know, dx/dt = velocity of body
At t = 2sec, velocity of body , v = 2/2 = 1 m/s
So, change in kinetic energy = final kinetic energy - intial kinetic energy of body
= 1/2mv² - 0 [because initially body is in rest because velocity of body at t = 0, is 0 ]
∴ change in kinetic energy = 1/2 × 6 × (1)²
= 1/2 × 6 = 3 J

Hence , Workdone = 3J

There is no MAGNETIC FORCE ACTING on STATIC CHARGE

1km/h=5/18m/s. it is ALSO FORMULA

SOLAR power is arguably the cleanest, most reliable FORM of renewable energy available, and it can be used in several forms to help power your home or business. Solar-poweredphotovoltaic (PV) PANELS CONVERT the sun's RAYS into electricity by exciting electrons in silicon cells using the photons of light from the sun. This electricity can then be used to supply renewable energy to your home or business.