User Tea is life

27 votes

What is the cause of rolling friction? & why is it less than sliding friction?

answered Nov 29, 2014 at 4:42

9 votes

Why is the divergence of a magnetic field equal to zero?

answered Apr 13, 2014 at 14:55

8 votes

Accepted

Consider a horizontal surface with or without friction. Ideally, will a wheel rolling without slipping roll forever in both cases?

answered Apr 25, 2014 at 6:40

6 votes

Why does a bicycle come to rest after travelling a distance?

answered Apr 19, 2014 at 23:28

5 votes

Can't virtual images be put on a screen?

answered Apr 19, 2014 at 21:37

3 votes

A vehicle moves from rest to a certain distance. Would the distance time graph always be curved?

answered Jul 27, 2014 at 11:25

3 votes

Is there a difference between "average acceleration" and centripetal acceleration?

answered Jul 17, 2014 at 21:05

3 votes

Accepted

Angular momentum-torque relationship in a rotating frame?

answered Apr 15, 2015 at 19:03

3 votes

As a car turns around a circle, why does the force of static friction point towards the center of the circle

answered Jan 13, 2015 at 7:19

3 votes

Why does a plane look like it's slower than a car?

answered Jan 17, 2015 at 6:36

3 votes

Accepted

Different interpretations of the power in a resistor law?

answered Jun 15, 2016 at 20:04

2 votes

How can the contact point of a body rolling without slipping have zero velocity?

answered Apr 6, 2015 at 14:17

2 votes

Accepted

Does magnetic poles exist for a magnetic field generated by straight current carrying conductor?

answered Apr 21, 2015 at 0:21

2 votes

Accepted

Using slope=0 technique to find most likely spherical shell

answered Aug 23, 2015 at 14:54

2 votes

Accepted

Why don't the kinematic equations agree with calculating velocity one second at a time?

answered Apr 20, 2014 at 21:11

2 votes

Accepted

Why is the black body radiation so important?

answered Apr 13, 2014 at 0:30

2 votes

What is the electric field between and outside infinite parallel plates?

answered Apr 18, 2014 at 21:42

2 votes

Accepted

What is wrong with considering the Atwood machine as a system?

answered Apr 15, 2014 at 2:13

1 vote

Charged particle between two parallel likely charged plates, is it affected by the plates?

answered Apr 18, 2014 at 6:27

1 vote

Accepted

Find the minimum value of velocity

answered Mar 8, 2014 at 2:29

1 vote

Acceleration and Circular Motion

answered Apr 10, 2014 at 19:02

1 vote

In calculating work done by a constant force over a constant distance, why doesn't the subject's initial velocity matter?

answered Apr 11, 2014 at 13:39

1 vote

Does the induced charge on a conductor stay at the surface?

answered Apr 23, 2014 at 13:40

1 vote

If the velocity vector of a moving particle is always perpendicular to the position vector, is the path a circle?

answered Jul 25, 2014 at 22:37

1 vote

Forces acting on particles

answered May 24, 2014 at 2:36

1 vote

Is Newton's third law always correct?

answered May 28, 2014 at 3:53

1 vote

Why does resistance increase with length?

answered Jul 16, 2014 at 18:21

1 vote

Do objects gain and lose heat at the same rate?

answered Jul 17, 2014 at 20:01

1 vote

Is capacitance calculated over a finite volume or over all space?

answered Sep 2, 2015 at 17:08

1 vote

Contradictory surface charge density relations

answered Sep 6, 2015 at 7:53

Stack Exchange Network

45 Answers

What is the cause of rolling friction? & why is it less than sliding friction?

Why is the divergence of a magnetic field equal to zero?

Consider a horizontal surface with or without friction. Ideally, will a wheel rolling without slipping roll forever in both cases?

Why does a bicycle come to rest after travelling a distance?

Can't virtual images be put on a screen?

A vehicle moves from rest to a certain distance. Would the distance time graph always be curved?

Is there a difference between "average acceleration" and centripetal acceleration?

Angular momentum-torque relationship in a rotating frame?

As a car turns around a circle, why does the force of static friction point towards the center of the circle

Why does a plane look like it's slower than a car?

Different interpretations of the power in a resistor law?

How can the contact point of a body rolling without slipping have zero velocity?

Does magnetic poles exist for a magnetic field generated by straight current carrying conductor?

Using slope=0 technique to find most likely spherical shell

Why don't the kinematic equations agree with calculating velocity one second at a time?

Why is the black body radiation so important?

What is the electric field between and outside infinite parallel plates?

What is wrong with considering the Atwood machine as a system?

Charged particle between two parallel likely charged plates, is it affected by the plates?

Find the minimum value of velocity

Acceleration and Circular Motion

In calculating work done by a constant force over a constant distance, why doesn't the subject's initial velocity matter?

Does the induced charge on a conductor stay at the surface?

If the velocity vector of a moving particle is always perpendicular to the position vector, is the path a circle?

Forces acting on particles

Is Newton's third law always correct?

Why does resistance increase with length?

Do objects gain and lose heat at the same rate?

Is capacitance calculated over a finite volume or over all space?

Contradictory surface charge density relations