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how to make any working model in physics?

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.two vector P=2i^+bj^+2k^and Q=i^+j^+k^ will be parallel if

(a)b=0

(b)b=1

(c)b=2

(d)b=-4

ans. is (c) b=2

but i don't know how to find it out...plzzz help me in getting the answer

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

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

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.................

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

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.

Q.24. Forces proportional to AB, BC and 2CA act along the sides of triangle ABC in order. Their resultant represented in magnitude and direction is

(A) CA

(B) AC

(C) BC

(D) CB

name all branches & sub branches of physics

described in diagram-1. If we replace source by another source whose emf varies with time according to diagram-2, then :

(1) for getting resonance again,decrease R

(2) current will remain in phase with source voltage

(3) for getting resonance again, decrease C

(4) current will lead source voltage after replacing the source

what is macroscopic and microscopic domains of interest?

What is the dimensional formula for calorie?

10. A motorist is travelling at 54 km/hr when he observes a traffic signal at a distance of 280 m ahead turning red at time t = 0. If he decides to decelerate & then accelerate by the same magnitude, so as to pass the signal at 54 km/he at t = 28 seconds, when the signal turns green, then

(A) Magnitude of deceleration is $\frac{5}{7}$ m/s

^{2}(B) Magnitude of deceleration is 1 m/s^{2}(C) Minimum speed reached is 5 m/s (D) Minimum speed reached is 10 m/s

what is momentum , linear momentum and angular momentum ?

what is the difference between linear and angular momentum?

check the correctness of the following relation;

(1) V=√4GM/(R+h)

(2) F=2GmM/(R+h)(R+h)

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

Find the derivative of the following w.r.t x:

1)sin

^{2}x 2)sin^{m}x cos^{n}xA 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?

What is parallax method ?

â€‹Q25. A number of capacitors, each of capacitance 1 $\mathrm{\mu}$F and each one of which gets punctured if a potential difference just exceeding 500 volt is applied are provided. Then an arrangement suitable for giving a capacitor of capacitance 3â€‹$\mathrm{\mu}$F across which 2000 volt may be applied required at least :

(A) 4 component capacitors (B) 12 component capacitors

(C) 48 component capacitors (D) 16 component capacitors

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.

what is unification and reductionism in detail with example?

easy way for learning dimensional formulas

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

Which of the following is not a derived force ???1) Tension in a String.......2) van der waal forces...........3) Nuclear force between proton- proton..................4) Electrostatic force between proton -proton.......( I am confused between 3) and 4) !!! kindly answer with explanation !!! )

how to get good marks in class 11th ?

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?

a) 0.5 units b) 1 unit c) 2 units d) 4 units

Explain fundamental forces in nature?

Find the maximum value of y = sin x + 2cos x

sphero meter expriment

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.

state work energy theorem. derive it for constant force.

What is the shortest distance measured indirectly so far??????????

Thank you in advance!!!!!!!!!!

Give example of tensor quantity!!

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

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

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 SCIENCEThe parallax of a heavenly body measured freo two points diametrically opposite on equator of earth is 2.0 minute.If radius of earth is 6400 km,calculate distance of heavenly body.

In a prism, why does the emergent ray always bends towards the base of the prism???Q. 72. An infinite long thread carries a charge uniformly spread over its length. It is bent in the form as shown. If the charge per unit length is $\lambda $. the electric field at point O is

(1) $\frac{\mathrm{\lambda}}{2{\mathrm{\pi \epsilon}}_{0}\mathrm{r}}$ (2) $\frac{\mathrm{\lambda}}{\sqrt{2{\mathrm{\pi \epsilon}}_{0}}\mathrm{R}}$

(3) $\frac{\mathrm{\lambda}}{2\sqrt{2{\mathrm{\pi \epsilon}}_{0}\mathrm{R}}}$ (4) Zero

what are the diseases caused by virus?

Find the value of Cos 220 degree.

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.Q.Four charges q, 2q, -4q and 2q are placed in order at the four corners of a square of side b. The net field at the centre of the square isfrequency 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....

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?

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

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.

define unification and reductionism??

difficult questions at ease on the

exam day.

what are the drawbacks of classical physics

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

the maximum tension that an inextensible ring of mass density 0.1 kg/m can bear is 40 N.the maximum velocity with which it can be rotated in a circular path?

Find the derivative of given function w.r.t corresponding independent variable

y = x

^{2}+ x + 8s = 5t

^{3}- 3t5y = 5sin x

y = x

^{2}+ sin x