Explain

1. Why is the foundation of a building made very wide, as compared to its walls?

Explain

Why do the army tanks move over the wide steel chain rather than on the wheels?

what is the difference between musular force and mechanical force

WHAT ARE NON CONTACT FORCES?

Explain

1. Why does a camel easily cross the desert but not a horse?

A physical text book has a mass of 2.2 kg.

a) what is the wieght on earth ?

b) What is the weight on Mars (g=3.7 m/s2)

c) If the text book wieghts 19.6 newtons on venus, what is the strenght of gravity on venus?

Explain

Why does a sharp nail easily penetrate wood, but not a blunt nail?

Why does a knife become blunt with use?

I hope my question has been ASKED earlier also. But I am not satisfied with the answer. So I need an answer from a proper expert.. I also request u to send all my answers in my mail.

I hope

Explain

1. Why is one end of drawing board pin broad and that, whereas its other end is pointed and staip.

definition of friction

what is the difference between muscular force and mechanical force

what is wear and tear

Explain the following

1. Why is one end of drawing board pin broad and that, whereas its other end is pointed and staip.
2. Why is the edge of knife kept sharp?
3. Why do the army tanks move over the wide steel chain rather than on the wheels?
4. Why is the foundation of a building made very wide, as compared to its walls?
5. Why are long skis used for gliding over snow?
6. Why does a camel easily cross the desert but not a horse?
7. Why are double tyres provided at the rear wheels of atruck?
8. Why does a sharp nail easily penetrate wood, but not a blunt nail?

why is frictiona consequential force

Explain

1. Why are long skis used for gliding over snow?

What causes friction ?

WHAT IS NEWTON 'S LAW OF GRAVITATION ?

Explain

1. Why are double tyres provided at the rear wheels of atruck?

If a wooden block is placed in three different positions on a floor, which position of the block will exert the greatest force on the floor?

Is any work done when you push a wall with your hands? why?

What Is Friction???

Explain

Why is the edge of knife kept sharp?

EXPLAIN NEWTON'S 2nd LAW

is friction a neccessary evil comment

what is pressure ?

can u define static friction .can u give me the answer today i have my exame tomorrow

how do we know that it is an contact and non-contact force?

what is the exact meaning of pressure?

what is the difference between force and pressure

what will be the change in pressure if the thrust and are will be increased double ?????

What is the SI unit of density

Both non -contact and contact forces act when an apple falls down to Earth.=TRUE.

Please explain how.

why frictional force is neccessary in our day today life.is there frivtional force in moon also?

WHY THERE ARE NO QUESTIONS ON PRESSURE IN FORCE AND PRESSURE CHAPTER OF CLASS VI ? [FOR EXPERTS ONLY] I AM TALKING ABOUT THE CHAPTER TESTS

they are not showing the types of forces like what is upthrust etc

define the following

find the focal length and the nature of lens which should be placed in the contact with a lens of focal length 10cm so that the power of the combination becomes 5d.

How can we measure force

what is the meaning of the word repulsive?

1.Define the term pressure..

2. State and define the SI of pressure.

what are non contact forces

what is the unit of pressure?

a wooden block of dimension 18cm *10cm is placed on a table. If pressure is 3000 pascal ,find the weight of the wooden block?????

how is friction always acting in the opposite direction, than what we are moving it

what is force at a distance ?

what is static friction