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What is newton third law

Posted by Lucky Rja 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Amandeep Kumar 8 years, 1 month ago

Every action has equal and opposite reaction and both action and reaction force acts on two different bodies

5Thank You

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No force acts on a body moving with constant velocity. Explain

Posted by Tushar Singh 8 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

As K 8 years, 1 month ago

Let a body of mass m is moving with constant velocity v. Then change in velocity (∆v)=0. Momentum (p)=mv then ∆p=m∆v=0 since velocity remains constant. F=∆p/∆t from newton 2 law. Ma=∆p/∆t. Ma=0/∆t. Ma=0 =F means force is zero F=m∆v/∆t=0. mass can not be 0. Means ∆v/∆t=0 V= constant

Amandeep Kumar 8 years, 1 month ago

Because the body is moving with constant valocity and if a force is added to it ... Then there is some change in the valocity of the body

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Pressure exerted by gas

Posted by Nitin Sharma 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

As K 8 years, 1 month ago

1/3 density ×square of average velocity

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Prove that even and odd both harmonic are produced in an open organ pipe.

Posted by Devansh Singh 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

As K 8 years, 1 month ago

The harmonic ratio in open organ pipe is 1:2:3:...............N (2,4,6,......,2n are even and 1,3,5,....,2n+1are odd)

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speed of sound in ideal gas and modify by haplar.

Posted by Payal Sriwastava 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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Modulus of elasticity

Posted by Subha Narayan 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

As K 8 years, 1 month ago

The proportionality constant in hook's law is known as modulus of elasticity. Stress directly proportional to strain Stress=k × strain Where k is proportionality constant known as modulus of elasticity.

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Three balls of masses 1, 2 and 3 kg respectively are arranged at the corners of an equilateral triangle of side 1 m. What will be the M.I. of the system above an axis through the centroid and perpendicular to the plane of triangle?

Posted by Shivam Jha 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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One light year

Posted by Rahul Saxena 8 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

As K 8 years, 1 month ago

Distance travelled by light in 1 year numerically equal to 9.46×10^15 meter

Himanshu Tiwari 8 years, 1 month ago

Light travel in 1 year

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if the weight

Posted by Navin Kumar 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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A physical quantity X is given by X=a2b2/c√d if the percentage error of a, b,c and d are 4% , 2%,3% and 1% respectively, then calculate percentage error in X

Posted by Nikku Saini 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Jaya Verma 8 years, 1 month ago

The %age error in X = 2 × %age error in 'a' + 2 × %age error in 'b' + 1 × %age error in 'c' + 1/2 × %age error in 'd' = 2 × 4% + 2 × 2% + 1 × 3% + 1/2 × 1% = 8% + 4% + 3% + 1/2% = 15.5 %

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A large steel wheel is to be fitted on to a shaft of the same material. At 27 °C, the outer diameter of the shaft is 8.70 cm and the diameter of the central hole in the wheel is 8.69 cm. The shaft is cooled using ‘dry ice’. At what temperature of the shaft does the wheel slip on the shaft? Assume coefficient of linear expansion of the steel to be constant over the required temperature range: αsteel = 1.20 × 10–5 K–1.

Posted by Sayan Nag 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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What is excess pressure in a bubble ?

Posted by Madhav Balaji 8 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Suaib Khan 8 years, 1 month ago

4T/R

Parth Grover 8 years, 1 month ago

No comments yet no comments

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Three masses m1,m2 ,m3 are situated at corners of an equilateral triangle of side 2 cm find centre of mass in plane if the mid point of the base lies at origin

Posted by Nandini Chavda 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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Whatvis banking of roads

Posted by Ankur Sheoran 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Ankur Sheoran 8 years, 1 month ago

The phenomenon of rising of outer edge of the road

3Thank You

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What do you understand by angle of contact on what factors does it depend where is the angle of contact of obtuse, acute or zero degree.

Posted by Harsh Khandve 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Himanshu Tiwari 8 years, 1 month ago

When the liquid in a capilar tube touches the tube then it makes an angle called angle of contact ....this is obtuse and acute making concave and convex layer in liquid .....hh??

3Thank You

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Find dimension of wt in y=sin (wt) + Fi

Posted by Mansi Sharma 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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What will happen if bridges do not have gap between them

Posted by Himanshu Tiwari 8 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Himanshu Tiwari 8 years, 1 month ago

Great u are right

Deepanshu Gond 8 years, 1 month ago

It will buldge outwards when expansion occurs due to change in temperature

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Simple harmonic motion explanation and derivation

Posted by Tanav Vinayak 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Himanshu Tiwari 8 years, 1 month ago

SHM means the motion in a straight line or propagation instraight line and having sine or cosine wave graph. ...

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An iron bar and a brass bar of same length and same area of cross-section are soldered end to end.The free ends of the iron bar and brass bar are maintained at T1 and T2 respectively. Obtain expressions for equivalent conductivity of the composite bar.

Posted by Aditya Mishra 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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Pascal-second has the dimensions of

Posted by Bhupesh Chandra 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Bhupesh Chandra 8 years, 1 month ago

Coefficient of viscosity

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Law of floating

Posted by Md Shahnawaz Alamkhan 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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What is the difference between newton first law of motion and Arustotle's law

Posted by Sunny Rajput 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Himanshu Tiwari 8 years, 1 month ago

First law is of inertia but I don't know about Aristotle's

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A trolley of mass 300 kg carrying a sandbag of mass 25 kg is moving uniformly with a velocity of 27 km/hr on a frictionless track.After a while, sand started leaking out of bag at 0.05 kg/sec.What is the speed of the trolley after the bag is empty.

Posted by Ritesh Jha 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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What is sea breeze and land breeze??

Posted by Rahul Prasad 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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Give full explanation of progressive wave

Posted by Kunal Goyat 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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What are units and dimension of plank's constant

Posted by Mansi Sharma 8 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Nitish Swan 8 years, 1 month ago

E=hc/wavelength

Jaya Verma 8 years, 1 month ago

Plank's constant 'h' = energy / frequency = ML^2T^-2 / T^-1 = ML^2T^-1 . So, its units are kg m^2 s^-1 .

4Thank You

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Derive the experssion for beat

Posted by Naman Gupta 8 years, 1 month ago

CBSE > Class 11 > Physics

3 answers

Mansi Sharma 8 years, 1 month ago

A sin (2πvt)

Mansi Sharma 8 years, 1 month ago

R sin (2πv

Himanshu Tiwari 8 years, 1 month ago

Asin(wt-kx)

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Give dimension of a and b in Vander Waal Equation

Posted by Mansi Sharma 8 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Naman Gupta 8 years, 1 month ago

(P + a/V2) (V - b) = RT P is pressure, V is volume and T is temperature. [P] = [F/A] = [MLT −2/L2] = [ML−1T −2] [V] = [L3] We cannot add or subtract quantities of different dimensions. Therefore [P] = [a/V2] ⇒ [a] = [PV2] = [ML−1T −2 L6] = [M L5 T −2] ∴ [a] = [M L5 T −2] Similarly, [b] = [V] = [L3]

5Thank You

Himanshu Tiwari 8 years, 1 month ago

Pressure and volume