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how to make any working model in physics?

thrown with the

help of a sling

with initial

velocity v at an

angle theta from

the horizontal.

a) Working of sling is based on...........

law of vector addition. (1)

b) With the help of a vector diagram,

state this law. (1)

c) Derive the expression for the

maximum height reached by

A. Psa^3/ 3E0a at a point distant 'r' outside it

B. Psr^2/ 3E0a at a point distant 'r' inside it

C. Ps^a/3E0 at a point on its surface

D. Ps/3E0a^2 at a point on its surface

plsss!!!!!! suggest me a working model on any topic of physics for class xi bt a gud one.

Write the dimensions of a and b in the relation P=b-x

^{2}/at where P is power, x is distance and t is time.28. Charge induced on the inner surface of cavity is

A. -Q, uniformly distributed B. -Q, non-uniformly distributed C. -(Q+q), non-uniformly distributed D. None

29. Net charge on the outer surface of conducting surface is

A. + Q B. B. Q- qR/l C. -qR/l D.None

30. Potential at a point inside the cavity is:

A. A. Zero B. Positive C. negative D. can not be determine

WHAT IS MEANING OF INERTIA? plz explain me in hindi.

Q2. Two isolated spherical shell having charges Q

_{1}and Q_{2}and radii r_{1}and r_{2}are kept at very large separation. If they are joined by a conducting wire, then choose incorrect statement:(A) Electrostatic potential energy of system must decrease.

(B) Electrostatic potential energy of system may decrease.

(C) If Q

_{1}r_{2}= Q_{2}_{ }r_{1}, then no charge flow through the conducting wire.(D) If Q

_{1}r_{2}= Q_{2}r_{1}, then electrostatic potential energy of system already minimum.differentiation of sin x by ab initio method

what is unification and reduction in physics?

examples for inertia of rest,motion and direction?

PAI KA MAN 22/7 KYO HOTA HAI

If electromagnetic force were not intrinsically so much stronger than gravity, the hand of the strongest man would crumble under the weight of a feather! Indeed to be consistent, in that circumstance,we ourselves would crumble under our own weight !

Please explain the above paragraph in simple words .

a person aiming to reach the exactly opposite point on the bank of a stream is swimming with a speed of 0.5 m/s.at an angle of 120 degree with the direction of flow of water. find the speed of water in the stream.................

(A) increases

(B) remains nearly unchaged

(C) decreases

(D) Intially increases and then decreases

wht's the dimensional formula of viscosity..????

Take angle of projection as theta.

assuming that the critical velocity of a viscous liquid flowing through a capillary tube depends upon radius r of a tube,density of the tube and co-efficient of viscosity of the liquid. use the method of dimensions to obtain a relation between these quantities.

The law of conservation of the electric charge is explained by the classical physics.

The law of conservation of the electric charge is interpreted by the quantum physics.

The law of conservation of the electric charge is an experimentally verified law.

The law of conservation of the electric charge relates the quantum physics to the classical physics.

Give reasons for answer do not give links

name all branches & sub branches of physics

what is macroscopic and microscopic domains of interest?

What is the dimensional formula for calorie?

IS VMC BETTER OR FIITJEE FOR JEE STUDIES?I WAS IN FIITJEE FOR CLASS 9TH AND 10TH AND I DIDNT LIKE IT MUCH,STUDIES THERE WERE LIKE TIME PASS.I NEED UR SUGGESTIONS ALSO.PLS HELP.

what is momentum , linear momentum and angular momentum ?

what is the difference between linear and angular momentum?

1.what is astronomical and terrestrial scales.and it"s deffrince.

2.what is microstopic and macroscopic.and it"s deffrince.

3.what is atomic phenomena,molecular phenomena and nuclear phenomena.

4.what is stabilised rule.

A drop of olive oil of radius 0.25mm spreads into a circular film of radius 10cm on the water surface. Estimate the molecular size of olive oil?

If velocity,time and force were chosen as basic quantities, find the dimensions of mass.

What is parallax method ?

prove that change in kinetic energy of a particle is equal to the work done on it by a variable force

A particle name 'A' moves along a circle of Radius 50cm so that its radius vector r relative to the point O rotates with the constant angular velocity=0.40 rad/s. Find the module of the velocity of particle, and the modulus and the direction of its total acceleration.

When will the Ncert Solutions Of PHYSICAL EDUCATION be published and also the FUNCTIONAL ENGLISH class XI.

i want to know which board is the best ICSE ,CBSE, CHSE for +2 studies i need ur help expert plzzz help me

what is unification and reductionism in detail with example?

easy way for learning dimensional formulas

Explain various indirect methods for measuring large distances?

arrange four types of basic forces in the order of increasing strength

how to get good marks in class 11th ?

Find the value of Cos 220 degree.

The length of a second hand of a clock is 10 cm. find the speed of the tip of

the hand?A compass of direction East,West,North,South shows us the direction of south.find the actual direction of the copass?

Explain fundamental forces in nature?

1. 1/5log

_{2}32+3log_{64}4 _simplifysphero meter expriment

state work energy theorem. derive it for constant force.

Give example of tensor quantity!!

11. A particle moving with constant acceleration along a straight line covers distance between 2 points 80 m apart in 10 seconds. Its velocity as it passed the second point is 18 m/s.

(A) Its velocity at the first point is -2 m/s

(B) Its acceleration is 2 m/s

^{2}(C) The total distance travelled during these 10 seconds is 82 m

(D) All above are false

Why gravitational force is weak force?

why do we call physics an exact science ?

A car accelerates on a horizontal road due to force exerted by the

A) Road on car

B) Car on road

C) Engine of car

D) driver of car

WHY IS PHYSICS CALLED BASIC SCIENCEQ.6. The resultant of three vectors of magnitudes 1, 2 and 3 units and whose directions are along the sides of an equilateral triangle taken in the same order is :

(A) 1 unit

(B) $\sqrt{6}$ units

(C) $\sqrt{3}$ units

(D) $\sqrt{14}$ units

Q.7. In the above equation the resultant vector makes an angle of :

(A) 210$\xb0$ with the first vector

(B) 30$\xb0$ with the first vector

(C) 60$\xb0$ with the first vector

(D) 120$\xb0$ with the second vector

In a prism, why does the emergent ray always bends towards the base of the prism???what are the diseases caused by virus?

Q1) What is Weak Nuclear Forces? Q2) What is Electromagnetic Forces ? Q3) What is Strong Nuclear Forces ?

frequency of vibration of mass 'm' sutended from a spring of constant 'k' is given by f=cm

^{x}k^{y}.... find value of x and y......... plzzz do it quickly.... plzzz everybody try to do it...... plzzz guys its a request.....do it frnds......as quickly as u can.......thank u....

Q1= Four Particles of equal masses M move along a circle of radius R under the action of their mutual gravitational attraction .Find the speed of each particle.i)Strong nuclear forces are charge independent

ii)Weak nuclear forces are charge independent

iii)Gravitational forces are charge independent

iv)All of these

if the unit of force were kilonewton,that of time milisecond and that of power kilowatt,what would be the units of mass and lenth?

Q.Each side of a cube is measured to be 7.203m .What are the total surface area and the volume of the cube to appropriate significant figures?

Check the correctness of agiven physical relationship?

v=/pr4 / 8nl

where v=volume of the fluid flowing through the tube per second

p=pressure difference across the ends of the tube.

r=radius of the tube.

l=length of the tube.

n=co-efficient of viscosity.

(1) AND gate (2) NAND gate (3) OR gate (4) XOR gate

define unification and reductionism??

All the resistors are identical. The ratio l/l' is

A) 8 B) 6 C) 5 D) 4

what are the drawbacks of classical physics

What is a photon?

Plz dnt copy from sites,,

expaing in ur language....

If A+B is a unit vector along x-axis and A=i+j+k, then B is?

General questions:

What is the number of air molecules in a 5m X 5m X 4m room at standard temperature and pressure...?

Thanks in advance