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The viscous force acting on a solid ball moving in air with terminal velocity v is directly proportional to :

Posted by Virender Punia 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Mayank Lakhina 7 years, 9 months ago

v

ANSWER

Puch and pul which is more esze

Posted by Harsh Sharma 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Mahima Sharma 7 years, 9 months ago

Pull is more easier because it reduces the effective weight

ANSWER

Suppose earth is a homogeneous sphere and a hole in its centre show that a ball falls in the centre excuse SHM

Posted by Ankit Paswan 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Write the principal of conservation of angular momentum

Posted by Riya Rathore 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Ankit Mishra 7 years, 9 months ago

Mv=mu

ANSWER

Explain Parallel axis Theorem in simple words....

Posted by Nitish Swan 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Derive the relationship between linear speed b/w angular velocity

Posted by Surjeet Kumar 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is kharash effect

Posted by Harini Gopalakrishnan 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Dipsmita Chattopadhyay 7 years, 9 months ago

Anti markovnikov rule

ANSWER

A uniform chain of length 1 m rests on a horizontal table having rough surface . If 25 cm of its length remains hanging down the edge of the table ,then calculate coefficient of friction .

Posted by Kriti Mishra 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Two bodies of massa's of 1kg and 2kg respectively are situated on points (1,2) & (-1,3) respectively. Find the position of centre of mass.

Posted by Uma Patidar 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Kriti Mishra 7 years, 9 months ago

(-1/3,5/3)

ANSWER

What is hydraulic machines

Posted by Jetha Ram 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

State the parallelogram laws of vector addition and find magnitude and direction of resultant of two vectors p and q inclined at angle x° . What happens when angle x= 0 and angle x= 90° ?

Posted by Arshi Dutta 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Centre of mass of two particle system

Posted by Tushar Kakkar 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

what is motion¿

Posted by Maninder Sandhu 7 years, 9 months ago

CBSE > Class 11 > Physics

2 answers

Nagma Rahman 7 years, 9 months ago

The body have ability to change there position about its mean position by applying an xternal force.

Nadeem Abbas 7 years, 9 months ago

Hilna

ANSWER

Rain is falling vertically with a speed of 35 m/s . A woman ride a cycle with a speed of 12m/s in East to West direction. What is the direction she should her umbrella

Posted by Tushar Kakkar 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Nadeem Abbas 7 years, 9 months ago

11

ANSWER

3mases 3,4,5 kg are located at the corners of an equilateral triangle if sides 1m locate the centers of mass of th system.

Posted by Rakesh Sah 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

what is the effect of solute on the surface tension of liquid

Posted by Itakshi Saini 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

whats is meaning of banking of road?

Posted by Deepak Meena 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Saurabh Pathak 7 years, 9 months ago

In simple,Banking of road means the angle at which road is tilted to balance the force applied by vehicles on road so that vehicles move smoothly without rollover.

ANSWER

Define cofficients of thermal conductivity and write it's unit

Posted by Pawan Saini 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Nagma Rahman 7 years, 9 months ago

The amt. Of heat energy required to increase the temp. Of unit mass of a substance by K (Kelvin). Formula-Q=KA ∆T/∆x X t SI unit -J/MSK. Dimensional formula-MLT-3K-1

ANSWER

Equation of progressive wave

Posted by Jain Omkara 7 years, 9 months ago

CBSE > Class 11 > Physics

2 answers

Nadeem Abbas 7 years, 9 months ago

Zada per rahe he app

Nagma Rahman 7 years, 9 months ago

y=Asin(wt-phi)

ANSWER

Derivative of newtons moon test

Posted by Sowri Sowrya 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Derivatives

Posted by Sowri Sowrya 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Why moon has no atmosphere ?

Posted by P Tejaswar 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Mayank Lakhina 7 years, 9 months ago

escape speed is very low on the moon as compared to the molecules present on the moon so the molecules left the moon and these is no atmosphere

ANSWER

Why atmospheric pressure decreases on going to high altitudes?

Posted by Dharshika As 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Mayank Lakhina 7 years, 9 months ago

because temperature decreases on high altitudes and we know that pis directly proportional to the t

ANSWER

Two boats are going parallel to each other, after some time the distance between both gets reduced. What is the phenomena behind this?

Posted by Prabhash Rai 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Mayank Lakhina 7 years, 9 months ago

relative velocity may be

ANSWER

A particle moving with SHM in a straight line. When a distance of a particle from the equilibrium position has value x1 and x2, the corresponding value of velocities are u1 and u2. Show that the time period of the oscillation is given by : T=2π✓[(x2²-x1²)/(u1²-u2²)]

Posted by Ritik Kumar 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

derive the equation in nth second of motion by displacement law

Posted by Sandeep Saini 7 years, 9 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Are centripetal and centrifugal force are action reaction force

Posted by Nikhil Kumar Sahu 7 years, 9 months ago

CBSE > Class 11 > Physics

3 answers

Talha Sarfraz 7 years, 9 months ago

Because they do not balance each other and are from different frame of refrence

Avinash Kumar 7 years, 9 months ago

Why no?

Talha Sarfraz 7 years, 9 months ago

No

ANSWER

Explain why boiling point decreases with increse in altitude?

Posted by Dharshika As 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Aminuddin Siddique 7 years, 9 months ago

Cause atmospheric pressure decrease as we increase altitude

ANSWER

Kelvin scale is called absolute scale.prove

Posted by Pawan Saini 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Rohan Gupta 7 years, 9 months ago

Coz it can never be negative

ANSWER

Why space rocket launch from West to east

Posted by Pawan Saini 7 years, 9 months ago

CBSE > Class 11 > Physics

1 answers

Aminuddin Siddique 7 years, 9 months ago

As earth revolves from east to west then it will provide rocket extra relative velocity with respect to earth to easily escape orbit

ANSWER

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