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Some of the most profound statements on the nature of science have come from Albert Einstein, one of the greatest scientists of all time. What do you think did Einstein mean when said

Posted by Vivek Singh Bisht 3 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Sia ? 3 years, 3 months ago

The Physical world around us is full of different complex natural phenomena so the world is in-comprehensible. But with the help of study and observations it has been found that all these phenomena are based on some basic physical laws and so it is comprehensible.

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Define angle of repose show that coefficient of friction is equal to the tangent of angle of repose

Posted by Anshika Rai 3 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Vivek Singh Bisht 3 years, 3 months ago

At angle of repose the angle of inclination Q is such that W sinQ=f (f =frictional force and of the body begins to slide with zero acceleration

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Resolution of vector in a unit vector

Posted by Grace Samte 3 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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Physics wold

Posted by Sūjāl Mēhrā 3 years, 3 months ago

CBSE > Class 11 > Physics

4 answers

Nishtha Mishra 3 years, 3 months ago

Physics wallha

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Sūjāl Mēhrā 3 years, 3 months ago

Hallo

4Thank You

Sūjāl Mēhrā 3 years, 3 months ago

4Thank You

Sūjāl Mēhrā 3 years, 3 months ago

Phisyes wald

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Hiii anyone here

Posted by Mohit Malviya 3 years, 3 months ago

CBSE > Class 11 > Physics

5 answers

Shreya Rajshree 3 years, 3 months ago

find the angle between vectors p=2i+3j-2k q=3i+2j+4k Please solve

1Thank You

Shruti Kushwaha 3 years, 3 months ago

Yrr class 11 ki physics sucks!!!???

1Thank You

Kirti Deshwal 3 years, 3 months ago

Good evening deae

2Thank You

Himanshi Tyagi 3 years, 3 months ago

Hii

1Thank You

Uma Pankajam 3 years, 3 months ago

Yes

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Intergation of x cosx

Posted by Priyanka Khatri 3 years, 3 months ago

CBSE > Class 11 > Physics

4 answers

Pragy Bohra 3 years, 3 months ago

X2/2+sinx

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Priyanka Khatri 3 years, 3 months ago

Aagar aap ko aata ha mara question so explain kar do

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Priyanka Khatri 3 years, 3 months ago

Yes

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Mohit Malviya 3 years, 3 months ago

Heyy can we talk

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What is the relative velocity of two bodies having equal velocities

Posted by Tanu Sri 3 years, 3 months ago

CBSE > Class 11 > Physics

3 answers

Sia ? 3 years, 3 months ago

If two bodies have equal velocities, the relative velocity will be 0.

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Vedit Agrawal 3 years, 3 months ago

0000

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Shashank Shukla 3 years, 3 months ago

Zero

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Name two dimensions less quantities

Posted by Kavya Kalal 3 years, 3 months ago

CBSE > Class 11 > Physics

3 answers

Anjan Karthi 3 years, 3 months ago

Density is the mass of a substance per unit volume of the substance. But, RELATIVE density is the RATIO of density of substance to density of H2O.

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Tarun Shakya 3 years, 3 months ago

What is density

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Anjan Karthi 3 years, 3 months ago

1) Relative density. 2) Strain. 3) Angle. (Any two)

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Two cars C¹ and C² moving in the same direction on a straight single lane road with velocities 12m/s and 10m/s respectively. When the separation between the two was 200m C² started accelerating to avoid collision. What is the minimum acceleration of car C² so that they don't collide.

Posted by Rahul Kumar 3 years, 3 months ago

CBSE > Class 11 > Physics

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A particle moving with uniform acceleration from A to B along a straight line has velocities v1 and v2 at A and B, then determine the velocity of particle C if C is the midpoint of the line

Posted by Abhinibesh Gupta 3 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 3 years, 3 months ago

V = 2V1V2/(V1 + V2).//

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A smooth sphere of radius R and mass M is placed on the smooth horizontal floor. Another smooth particle of mass m is placed on the sphere and a horizontal force F is applied on the sphere as shown. If the particle does not slip on the sphere then the value of force F is-. (A) F = mg * cot theta. (C) F = (m + M) * g * cot theta. (B) F = Mg cot 0 (D) F = (m + M) * g * tan theta

Posted by Evjot Kaur 3 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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A bus is moving with the velocity 30 km h . On applying the brakes, it comes to rest after traveling a distance 10 m. Calculate the time taken by the bus in coming to rest

Posted by Amrita Mukesh 3 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

x=6+3t+2t cube

Posted by Amrita Mukesh 3 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Displacement =( t^3 - 6t^2 - 15t + 20) meter. Find Initial displacement of the particle Displacement in 4th second What is the acceleration of the particle

Posted by Deepali Tripathi 3 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Mohit Yadav 3 years, 3 months ago

Pta nhi

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A car travels first half distance between two places with a speed of 40 Km/hr and the rest half with a speed of 60 Km/hr. Find the average speed of the car. And derive the equation of motion by using graph method.

Posted by Nikhil Chaudhary 3 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 3 years, 3 months ago

There is a formula which can be directly applied in such situations. V avg = 2 V1 V2 / V1 + V2 = 2 × 60 × 40 / 60 + 40 = 48 km/h.//

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Derive displacement and acceleration using uniform circulation motion

Posted by Grace Samte 3 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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What is relation between physics and technology?

Posted by Shravani Dabhade 3 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Archita Pal 3 years, 3 months ago

In these times technology is observed to rise new physics and at others times physics generate new technology.

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X is equals to 5tsquare+ 9t plus 4 call to 1 second instantaneous t=2 to t=4sec average

Posted by Ravi Porwal 3 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Anjan Karthi 3 years, 3 months ago

Therefore, Vavg = 29 + 49 / 4 + 2 = 78/6 = 13 m/s.//

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Anjan Karthi 3 years, 3 months ago

X = 5t^2 + 9t + 4 = 5 (2t) + 9 = 10t + 9// Therefore, in 4 s, X = 49 m. In 2 s, X = 29 m.

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Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of 72 km h–1 in the same direction, with A ahead of B. The driver of B decides to overtake A and accelerates by 1 m s–2 . If after 50 s, the guard of B just brushes past the driver of A, what was the original distance between them?

Posted by Lohitha Harish 3 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Sia ? 3 years, 3 months ago

Given that,
u_A = u_B =72 kmh⁻¹= 72 × 185 = 20 ms⁻¹
Using the relations, s = ut + 1/2 at², we get
S_B = u_Bt + 1/2 at²= 20 × 50 + 1/2 × 1 × (50)²
S_B = 1000 + 1250 = 2250m
Also, let S_A be the distance covered by the train A, then S_A = u_A × t
= 20 × 50 = 1000 m
Original distance between the two trains
= S_B− S_A
= 2250 − 1000 = 1250 m

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If a velocity (v) of a particle be (4t ×4t ×4t +5)m/s .Then calculate the displacement of particle, x? .when displacement at time (t) =2 second

Posted by Archita Pal 3 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Give some important features of uniform motion.

Posted by Disha Agrawal 3 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

A body starts from rest and travels with an acceleration of 2 m/s². After t seconds its velocity is 10 m/s .Then t is

Posted by Dinesh Kumar 3 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 3 years, 3 months ago

u = 0 m/s. v = 10 m/s. a = 2 m/s^2 . Therefore, a = v - u/t. t = v - u/a = 10 - 0 / 2 = 5 s.

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1 joule= how many ergs

Posted by Tanishk Bhardwaj 3 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 3 years, 3 months ago

1 joule = 1 kg m^2 / s^2 = 10^3 g 10^4 cm^2 / s^2 = 10^7 ergs//

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A truck on a straight road at rest accelerates at 2m/s² until it reaches a velocity of 20m/s. Then it travells for 15s at constant velocity until breaks are applied stopping the truck in uniform manner in an additional 5s . The magnitude of the average velocity of the truck in the journey is

Posted by Renuka Maggi 3 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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Find the dimensions of force

Posted by Aryan Shukla 3 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 3 years, 4 months ago

Unit of force = kg m/s^2. Therefore, dimensional formula = [M] [L] / [T^2] = [MLT^-2]. Dimensions of force are 1 in mass, 1 in length and -2 in time.

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Are the magnitude and direction of A+B and A-B are same?

Posted by Aadi Jain 3 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Pankaj Rai 3 years, 3 months ago

It depends on whether a and b are scalar or vector qantities if a vector quantities then their value depend on the angle between them . They are equal at an angle of 90 degree.

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A ball is throw vertically upwards with velocity of 20m/s from the top of a multistorey building .the height of point from where the ball is thrown is 25m from the ground.how distance become negative

Posted by Eliza Mary 3 years, 4 months ago

CBSE > Class 11 > Physics