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distance - actual path covered by body. displacement - shortest path covered by body

distance- actual path coverd by body. displacement- shortest path coverd by body

we know that speed is given asv = dx/dt

Now,if the slope of the graph remains constant the body will be moving equal distances in equal time intervals. So, the RHS of the above relation 'dx/dt' will remain the same throughout.

Thus, the speed will remain the same as well.

1

after solving t= 600

1m/s

option 3 should be the correct answer..

velocity is the answer

displacement is always proportional to velocity

Apption C is is a Answer

option c is correctbecause magnitude r=√3^2+1^2+2^2r=√9+1+4r=√14

centripetal force

a force which acts on a body moving in a circular path and is directed towards the centre around which the body is moving.

It is this force which binds the object to curvilinear path otherwise object will come out of the circle and start moving in straight direction.

Common Examples are

1.A ball , revolving in horizontal circle attached to a rope.

Think what happens if rope suddenly breaks.

2.A vehicle turning on the road.

3.Sattelites revolving around earth.

4.Planet bounded to Sun.

5.Electron motion.

the force that is necessary to keep an object moving in a curved path and that is directed inward toward the center of rotation a string on the end of which a stone is whirled about exerts centripetal force on the stone.

As a car makes a turn, the force of friction acting upon the turned wheels of the car provides centripetal force required for circular motion

Ans :- Radius of sphere\curvature =40m

Now, we are already aware of the relation between Radius of the curvature and focal length of the mirrors.

Focal length = half of the radius of the curvature.

i.e f = 1\2 C

So, f= 1/2 ×40

f=20m

Thank you

The various losses in optical fiber are due to either intrinsic or extrinsic factors.

Fiber attenuation, which is also called signal loss or fiber loss, is the consequence of the intrinsic properties of an optical fiber (multimode and single mode fiber).

Apart from the intrinsic fiber losses, there are some other types of losses in the optical fiber that contribute to the link loss, such as splicing, patch connections, bending, etc.

Postulates of Bohr's atomic model :

According to Bohr's theory , electrons revolve in definite circular orbits around the nucleus and these orbits are designated by the letters K, L, M, N or by the numbers 1, 2 ,3, 4 and so on.

As long as the electrons revolve in a particular orbit they can neither gain energy nor loose energy. Such orbits are called as stationary orbits or stationary states.

When an electron jumps from an higher orbit to a lower orbit it releases energy in the form of raldiations and when an electron jumps from lower orbit to a higher orbit it absorbs energy in the form of raldiations.

The angular momentum of aln electron is an integral multiple of h/ 2π mvr = nh/ 2π

It explains the stability of an atom and also the line spectrum of hydrogen atom

= These forces are equal in magnitude and opposite in direction.

= Due to this nature, they tend to cancel each other out.

if action and reaction are equal and opposite forces then cancel each other.

Newton's third law of motion states that everyactionhas anequal and opposite reaction. This means thatforcesalways act in pairs.Action and reaction forces are equal and opposite, buttheyare not balancedforcesbecausetheyact ondifferentobjects sothey don't cancelout.Nov

4000+700=4700d=0.56marea= pi× r^2=3.14×0.28^2=0.246m^2torque=force/areat=4700/0.246=19082.35cof= 0.3 ×700=210

yes action and reaction always exist in pairs and they act on different bodies

According toNewton's third law, for every action force there is an equal (in size) and opposite (in direction) reaction force. Forces always come in pairs - known as "action-reaction force pairs." Identifying and describing action-reaction force pairs is a simple matter of identifying the two interacting objects and making two statements describingwho is pushing on whomand in what direction. For example, consider the interaction between a baseball bat and a baseball.

According to Newton's third law, for everyaction forcethere is an equal (in size) and opposite (in direction)reaction force.Forcesalways come inpairs- known as "action-reaction force pairs." ... Together, these twoforcesexerted upon two different objects form theaction-reaction force pair.

When some forces that are found to be acting on a body in a non-inertial frame of reference are called pseudo or fictional forces, this means that while you can use the force as part of a balance to calculate what you are observing if it were viewed from an inertial reference point you would notice this force is absent.That's why we call it a psuedo forcePlease like the solution 👍✔️

A microorganism, or microbe, is a microscopic organism, which may exist in its single-celled form or in a colony of cells. ... Microorganisms include all unicellular organisms and so are extremely diverse.

There are different types of microbes:

bacteria.

fungi.

algae.

protozoa.

viruses.

P = F / A where

P is the pressure exerted on a body, F the force and A the area where the force is exerted.

The area of the cube is:

3 × 3 × 6 = 54M²

F = Pressure × Area

From the question:

Pressure = 10⁵ N/M²

Force = 10⁵ × 54

5400000N

i don't get it please tell me answer fast i am in need

The total pressure on the swimmer would be the sum of the atmospheric pressure and the pressure due to 10m colum of water

so,

P = Patm+ ρgh

here

Patm= 10^5N/m^2

ρ (of water) = 1000 kg/m^3

g = 9.81 m/s^2

h = 10m

thus, we have

P = 10^5+(1000x9.81x10)

so, total pressure

P = 1.981 x 10^5N/m^2

Galileowas the first todiscoverphysical details about the individual bodies of the Solar System. He discovered that the Moon was cratered, that the Sun was marked with sunspots, and that Jupiter had four satellites in orbit around it.

Thank you Sir

answer is wrong and the correct answer is (two plus tow root two )m/s so plase try and explain

Mass of car m = 800 kgInitial velocity = 36 km/h =36 x 5/18 = 10 m/sFinal velocity = 72 km/h = 84 x 5/18 = 70/3m/sInitial kinetic energy = = ½ × mv2 = ½ x1500 x (10)2 = 75000 JIncreased kinetic energy = 1/2 mv2 = ½ x800 x(70/3)2 =217,777.77 J Work done = Change in kinetic energy= 217777.77--75000 JHence the work done by the force on the car = 142777.77J

PVC insulated power cables are generally designed and manufactured from rated voltage 650/1100 voltsup to and including 6.35/11 kV

momentum will remain constant and horizontal component of velocity remains constant

c) is the correct answer

No, because it is propelled by combustion of fuel and does not move under the effect of gravity alone.