Wellcome!

Question 1. Asked on :18 August 2019:11:11:02 PM

#### why nail have sharp edges

-Added by Master Purushottam Science » Force

Master Purushottam

nail have sharp edges because if per unit area of surface is reduced the pressure on it is increased. hence nail push easily

-Answered by Master Purushottam On 18 August 2019:11:31:58 PM

Question 2. Asked on :18 August 2019:11:10:28 PM

#### write the type of force

-Added by Master Purushottam Science » Force

Himanshi Verma

Force are two types:-       1. Contact force.         2. Non contact force

-Answered by Himanshi Verma On 19 August 2019:05:38:10 AM

Question 3. Asked on :18 August 2019:11:09:41 PM

#### define pressure

-Added by Master Purushottam Science » FORCE

Himanshi Verma

The force acting on a unit area of the surface is called pressure.

-Answered by Himanshi Verma On 19 August 2019:05:49:45 AM

Question 4. Asked on :18 August 2019:11:08:49 PM

#### what is contact force

-Added by Master Purushottam Science » Force

Master Purushottam

muscular force can be applied only when it is  contact with an object, it is also called a contact force

-Answered by Master Purushottam On 18 August 2019:11:35:35 PM

Question 5. Asked on :18 August 2019:11:05:38 PM

#### what is muscular force

-Added by Master Purushottam Science » FORCE

Akki chauhan

Muscular force is the force applied using part of the body likes arms and legs. It is force that results due to the action of muscles.

-Answered by Akki chauhan On 19 August 2019:08:59:21 AM

Hitesh kumar

Density is constant for given substance or material. So, when it is cast into different shapes, the density of the material remains same as before.

Density is defined as the mass of the substance per unit volume.

Density = Mass / Volume.

Mass of the metal cylinder and that of the cube will be same when measured via spring balance experiment.

Mass of water displaced in both cases doesn't change.

Similarly, volume of the water displaced in the measuring unit of the spring balance remains same in both the scenario.

So, density remains same.

-Answered by Hitesh kumar On 22 April 2019:03:24:11 PM

Question 7. Asked on :22 April 2019:09:56:43 AM

#### At which temperature the density of water is maximum?

-Added by Nitish kumar Science » FORCE

Sohail alam

39 °F

Answer: When cooled from room temperature liquid water becomes increasingly dense, as with other substances, but at approximately 4 °C (39 °F), pure water reaches its maximum density. As it is cooled further, it expands to become less

-Answered by Sohail alam On 22 April 2019:03:28:08 PM

Question 8. Asked on :22 April 2019:09:55:34 AM

#### What would be the unit of displaced weight of liquid?

-Added by Nitish kumar Science » FORCE

rocki kumar

The mass of the displaced fluid can be expressed in terms of the density and its volume, m = ρV. The fluid displaced has aweight W = mg, where g is acceleration due to gravity. Therefore, the weight of the displaced fluid can be expressed as W = ρVg.

-Answered by rocki kumar On 08 May 2019:08:22:19 AM

Question 9. Asked on :22 April 2019:09:53:13 AM

#### When happens when we immerse an object in bucket of water which is not filled to the brim?

-Added by Nitish kumar Science » FORCE

priyanshu kumar

Now, if we immerse an object into this bucket full of water, then the object will ... a bucket of water which is not filled to the brim, then the object will displace water ...

-Answered by priyanshu kumar On 04 May 2019:08:27:13 AM

Question 10. Asked on :22 April 2019:09:51:01 AM

#### What is relation between volume of an object immersed in water and volume of displaced water?

-Added by Nitish kumar Science » FORCE

priyanshu kumar

The amount of fluid displaced is directly related (via Archimedes' principle) to its volume. In the case of an object that sinks (is totally submerged), the volume of the object is displaced. In the case of an object that floats, the amount of fluid displaced will be equal in weight to the displacing object.

-Answered by priyanshu kumar On 06 May 2019:10:02:39 AM

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