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a)In physics, the angular velocity of a particle is the rate at which it rotates around a chosen center point: that is, the time rate of change of its angular displacement relative to the origin. It is measured in angle per unit time, radians per second in SI units, and is usually represented by the symbol omega.

b)Angular acceleration is the rate of change of angular velocity. In three dimensions, it is a pseudovector. In SI units, it is measured in radians per second squared, and is usually denoted by the Greek letter alpha

c)In physics, angular momentum (rarely, moment of momentum or rotational momentum) is the rotational equivalent of linear momentum. It is an important quantity in physics because it is a conserved quantity—the total angular momentum of a system remains constant unless acted on by an external torque.

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larger than animal vacoules in size

The percentage of volume of ice cubes outside the water is 10 %

Density of ice outside = 1000 - 900

= 100kg/m3

% of ice outside = 100/1000 × 100

= 10%. Ans

Fourier led the foundation of dimensional analysis

these is wrong

these is wrong

these is the wrong answers

3) 60° may be..........

I solve this question first like my answer then I give you answer

3 is the best answer

By my solving I got 3) 60°

the solution is (3)60°

60 is the right answer.

Velocity at the end will be

V² = 2*a*H = 2*9.8*4.9 = 9.8*9.8

So V = 9.8 m/s.

option 3

gravitation force acts in the objects which have mass

Depth x

x = [ L ] = e ᵃ (ke) ᵇ

where e = elasticity coeff. ke = kinetic energy

e ᵃ = [ M ]ᵃ [ L ] ⁻ᵃ [ T ] ⁻²ᵃ

(ke) ᵇ = [ M ]ᵇ [ L ] ²ᵇ [ T ] ⁻²ᵇ

a + b = 0

-a + 2b = 1

Solving these we get

3b = 1

b = 1/3

So, a = -1/3

Therefore, we have

Derivation for the equation ofPotenstial Energy:Let the work done on the object against gravity = W Work done, W = force ×displacement Work done, W = mg×h Work done, W = mghSince workdone on the object is equal to mgh, an energy equal to mgh units is gained by the object . This is the potential energy (Ep) of the object. Ep= mgh

from the equation of motion we know thah =1/2(g)t² for t = t/2h' = 1/2*(g)(t/2)² = 1/2*g*t²/4 therefore h' = 1/4*(1/2*g*t²) = 1/4*h

so, from the distance it is at h/4 from the ground it is at h-h/4 = 3h/4 distance.

It should be the leasthence30dB

30 dB is the correct answer of the given question

*Sound needs a medium to propagate.*Sound cannot travel through vaccum*There is no atmosphere in moon -creating no vaccum*Therefore sound cannot travel and they couldn't listen/hear each other

We know that sound requires a medium to travel.When we speak then our sound travels through the air molecules.This makes vibrations in them and by those vibrations sound is heard by us.(This is the case of earth)

Now consider the case of moon.In moon there is no air medium for the sound to travel.Hence,when we speak on moon we cannot hear each other.

Gandhiji believed in the four-fold division of the Hindu society into four varnas. He regarded untouchables as. Shudras and not as the Panchamas or fifth Varna or Avarna.

Hence he sincerely felt the need for bringing about a basic change in the caste structure by uplifting the untouchables and not by abolishing the caste as such. He appealed to the conscience of the people to realise the historical necessity of accommodating the “Harijans” by providing them a rightful place in the society.

He believed that opportunities of education and temple entry would reduce social inequalities be­tween Harijans and caste Hindus. He launched movements for cleaning Harijan residential areas, for digging wells for them and for similar other beneficial things.

Gandhiji wrote in “Young India” in April 1925. “Temples, public wells ana public schools must be open to the untouchables equally with caste Hindus.” He started two journals, ‘Harijan’ and ‘Young India’ through which he advocated his ideas. He started an ashram where people of all castes and creeds could come and stay without any differences.

Gandhiji served the “Harijan Sevak Sangha” started by the social reformer Takkar Bapa in the year 1932 for working out the religious and social welfare of the Harijans. The organisation opened schools and dispensaries in various places and arranged for free educational facilities and scholar­ships for Harijan children.

Political Role of Gandhiji:

As a much respected political leader of the masses, Gandhiji could never ignore the tasks of the removal of untouchability and upliftment of Harijans. Gandhiji entered the Indian freedom struggle in 1919.

Reduction of transportation cost.Thermal power plants require water to be converted into steam , so they need some fuel to be burnt to convert water to steam thus they need coal or oil as a fuel ,transportation cost can be minimized if they are located near coal and oil fields.

A person whose retina is damaged is not able to see because retina acts as a screen for our eye on which the images are formed. And, if it gets damaged, the images will not be formed and the brain will not recognize the object. That's it.

Analtimeteror an altitude meter is an instrument used to measure the altitude of an object above a fixedlevel.

Short sightnessHe must use diverging lens

According to resonancxl= xcso Ir+Ic will be less than1thanks

Xl= XcsoIr+Ic would be greater then 1Option-D

Zener diodesare widely used as voltage references and as shunt regulators to regulate the voltage across small circuits. When connected in parallel with a variable voltage source so that it is reverse biased, aZener diodeconducts when the voltage reaches thediode'sreverse breakdown voltage.

As in resonanceXl= Xcso Opti on D is right

Musical sounds are periodic and somewhat regular. They are pleasing to our ears and minds, and sound has been one of the greatest forms of expression since the beginning of time. Unpleasant sound is often described as noise. Noise is more irregular. When looking at thewaveform, a visual representation of sound, music has more patterns and gradual variances in volume, butnoise is jagged and sporadic.

Here Opti on D is rightadue to resonance it happens

Ans :-

but in my key sheet they gave 10m/s

please can u do again

please can u do again

in your question the coordinates are not specified, if it is mentioned other side of page just put the values and take mod of it, you will get the answer

Please post it again in community so any other mod will look at and find whether this question is incomplete or any other flaw.

moreover in question it is only asked to find the projection, not absolute value.

yeah velocity of projection

thanks. Just wanted to check whether my answers made sense 😁😁

V is directly proportional to IhenceV=IRR=V/I

thank you....

Electric field at P due to charge at A is,EA= kq/(a2/2) along APElectric field at P due to charge at B is,EB= k(2q)/(a2/2) along BPElectric field at P due to charge at C is,EC= k(3q)/(a2/2) along CPElectric field at P due to charge at D is,ED= k(4q)/(a2/2) along DPElectric field EAand ECare in opposite directions, so, their net field is,ECA= k(3q)/(a2/2) - kq/(a2/2) = k(2q)/(a2/2) along CAElectric field EDand EBare in opposite directions, so, their net field is,EDB= k(4q)/(a2/2) - k(2q)/(a2/2) = k(2q)/(a2/2) along DBSince, ECAand EDBare equal in magnitude and they are perpendicular to each other, so, their resultant E will bisect angle APB.Thus, E = [(ECA)2+ (EDB)2]1/2= (√2)k(2q)/(a2/2) = (4√2)kq/a2

hi friend I don't know the answer and please like my answer please

it's wrong

s=5mv=0a=-10m/s ²v²=u²+2as

One big one: PS/2 is a "port" while USB is a "bus" The difference is a port is designed to connect a single device, while a bus is designed to connect many devices together. I currently have about 5 USB devices connected to my computer. They can all be connected to a single USB host controller using a hub. With PS/2 I'd need a separate connector for each device. An artifact of port and bus design is that buses tend to support clients connecting and disconnecting (hot-swap), while ports are typically designed to be connected at startup and stay connected.

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