Subject: Science, asked on 1/5/18

## centripetal and centrifugal forces come under contact force or non contact force

Subject: Science, asked on 30/4/18

## (1) 1.031*10^5pa(1atm) what does pa and atm mean? (2) A wooden block is of 20 kg . The length , breadth and height of the woodnen block are 5m , 2 m and 1 m, respectively . What are the minimum and maximum pressure exertedby the block, respectively ? The answer is maximum pressure = 2002*1= 100pa minimum pressure = 2005*2=20 pa But how 20 pa and 100 pa comes I cannot understand

Subject: Science, asked on 30/4/18

## What type of forces are there when there is vacuum.

Subject: Science, asked on 25/4/18

## Does the force of gravity act on dust particles?

Subject: Science, asked on 23/4/18

## Solve this:  3. Give reasons for the following statements- (a) 'Snow shoes' are more effective than ordinary shoes on snow. (b) Porters place a large round piece of  cloth on their heads when they carry heavy loads. (c) A sharp knife cuts vegetables and fruits more effectively than a blunt knife. (d) School bags are provided with wide straps to carry them. (e) It is much easier to burst an inflated balloon with a needle than (directly) with the finger. (f) Mountaineers may suffer from nose bleeding at  high altitudes. (g) Airplanes have pressurised cabins for passenger safety while flying high in the atmosphere.

Subject: Science, asked on 22/4/18

## Is there any force while this fan is running and what effect is ths:

Subject: Science, asked on 21/4/18

## Explain the following stated property  with proper reason in about 120 words: When Helium is cooled to almost absolute zero (-460 F or  -273 $°$C, the lowest temperature possible), then it becomes a liquid with the following properties: It flows against the gravity and will start running up and over the lip of a glass container!​

Subject: Science, asked on 20/4/18

## hello, sir i am Hridyanshu Kashyap who asked you ballonquestion by mistake the internet got off so can you please explain it. and thankyou for the rest of the session

Subject: Science, asked on 18/4/18

## Plz solve this question:- Q2(iii)&(iv)

Subject: Science, asked on 17/4/18

## How does an improvised manometer work?

Subject: Science, asked on 11/4/18

## what is net force?

Subject: Science, asked on 11/4/18

## What do you mean by electrostatic force?Why is this considered as a non-contact force?

Subject: Science, asked on 9/4/18

## hello sir , i have attended your force class but i have a doubt . Sir how is 5n more than 12n haarika

Subject: Science, asked on 9/4/18

## Hello Sir, I had a small doubt -Which action is involved in squeezing wet clothes for drying? Pull or Push? Hoping to receivethe answer soon. Thanks and Regards Saloni

Subject: Science, asked on 1/4/18

## Complete the following activity: ACTIVITY: Aim: ____________________________________________________________ Materials Required: Light bulb, Hair comb Method or Procedure: 1. Go into a dark room with the light bulb and hair comb. 2. run the comb through your hair around 20 times. 3. Place the comb on the metal end of the light bulb and watch as the filament in the bulb lights up. Observation: The filament in the bulb glows. State and explain the science behind the activity (in 100-120 words): ____________________________________________________________ ____________________________________________________________ Conclusion: ____________________________________________________________

What are you looking for?