Subject: Science, asked on 6/12/15

## why are the dams made thicker at the bottom??

Subject: Science, asked on 25/2/17

## ​3. Take 4-5 plastic bottles of different shapes and sizes. Join them together with small pieces of glass or rubber tube as shown in Fig. 11.22. Keep this arrangement on a level surface. Now pour water in any one of the bottles. Note whether the bottle in which water is poured gets filled first or all the bottles get filled up simultaneously. Note the level of water in all the bottles from time to time. Try to explain your observations​

Subject: Science, asked on 26/7/12

## what is atmospheric pressure?

Subject: Science, asked on 12/6/18

## Answer quickly 4. Two rods, ' A' and ' B',  of the same weight and equal length. have different thicknesses. A boy, while playing with them on a beach, held them vertically on the surface of sand as shown in the figure. Which one of them will sink less? Explain. 5. Three holes. A. B and C, are made in an empty can at different levels, one over the other, as shown in the figure. They are (temporarily) closed with an adhesive tape. The can is now filled with water. What will you observe, when the tape (on all of them) is pulled out? Justity your answer.

Subject: Science, asked on 16/6/10

## A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad.

Subject: Science, asked on 31/7/13

## Q: a force of 10N act on an area of 0.1m2. the force is kept the same but the area is reduced to half.which of this is true?a) the pressurer does not changeb) the pressure reduces to halfc) the pressure increases by 1.5 timesd) the pressure doubles

Subject: Science, asked on 10/12/11

## what are the examples of muscular, friction, magnetic, electrostatic, gravitational force and pressure.

Subject: Science, asked on 23/5/16

## ​​Which force is responsible for holding a satellite in its orbit around the Earth. Explain

Subject: Science, asked on 31/8/13

## write an activity to show that liquid pressure depends on its depth

Subject: Science, asked 4 days, 6 hours ago

## Please help 4 5 6 no. Questiins

Subject: Science, asked on 17/8/11

## why is the foundation of a building wider than its wall?

Subject: Science, asked on 11/10/12

## Why it is easier to cut vegetables with a sharp knife ...and difficult with a blunt knife ...???whats the logic ....i need scientific reason ...... it is asociated with the CH- 11 Force And Pressure

Subject: Science, asked on 28/6/09

## Explain why a balloon bursts if we blow too much air in it ????

Subject: Science, asked on 14/1/14

## If a body is moving with uniform speed in a particular direction on a perfectly smooth surface, then no force is acting on it. True or False? Explain.

Subject: Science, asked on 1/3/11

## how can liquids exert equal pressure at the same depth ?

Subject: Science, asked on 11/6/14

## if several forces act on a body in different directions in which direction the body will move

Subject: Science, asked on 9/5/14

## why do heavy vehicles have broad tyres?

Subject: Science, asked on 11/5/12

## The second's hand of a watch is 2cm long, the speed of the tip of this hand is A. 0.21 cm/s  B. 2.1 cm/s C. 21.0 cm/sI think we can solve this question by calculating angular velocity.

Subject: Science, asked on 19/7/15

## why are our bodies not crushed by the large pressure exerted by the atmosphere?

Subject: Science, asked on 19/5/19

## Calculate the pressure exerted by a brick, which applies a force of 2.5 Newton ,when (a) it is placed upright on the soil,( b) when it is placed on the widest base. The dimensions of the brick are 25cm × 10cm× 5cm

Subject: Science, asked on 10/6/16

## What is a rubber sucker how does it work state anyone use of a Rubber sucker

Subject: Science, asked on 25/1/20

## Why it is difficult to cut vegetables with a blunt knife?

Subject: Science, asked on 14/9/13

## what is non contact and contact force ? example

Subject: Science, asked on 9/7/13

## Which type of force acts when we twist wet clothes to squeeze out water ?

Subject: Science, asked on 13/6/14

## When is the pressure on the ground more-when a man is lying or when a man is standing. Explain?

Subject: Science, asked on 10/9/18

## How does the pressure of a liquid depend on its depth? Draw a labelled diagram to show that the pressure of a liquid depends on its depth. Answer by MERITNATION EXPERTS ONLY please.

Subject: Science, asked on 27/5/13

## A boy is wearing a shirt of mass 150 g. How much force is he exerting on the dress? Do not forget to state the direction.

Subject: Science, asked on 20/10/19

## name the type of force in the following cases raindrops falling on earth

Subject: Science, asked on 14/4/12

## What is the difference between inertia and friction ?

Subject: Science, asked on 27/2/20

## Solid body weight 200 kg .When placed on wooden plank, the area of contact in found to be 5 metre square. Find the pressure exerted

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