Ramesh prepared share price index number identify and explain the concept​

Answer:

search-icon-image

Question

Bookmark

A certain block weights 15N in air. It weighs 12N when immersed in water. When immersed in another liquid, it weighs 13N. The relative density of the block and the other liquid are respectively:

Medium

Solution

verified

Verified by Toppr

Correct option is A)

Upthrust acting on the block in water =15N−12N=3N = ( volume of solid immersed )( density of liquid ) g = V (1) 10 where V is the volume of the block , so V=

10

3

=0.3 cm

3

Block weighs 15N in air implies 15=mg , implies m=

10

15

=1.5g

now density =

volume

mass

=

0.3

1.5

= 5 g/cm

3

so density of block = 5 g/cm

3

hence , relative density of the block = density of block / density of water=

1

5

=5

now Upthrust acting on the block in the liquid =15N−13N=2N= (volume of solid immersed ) ( density of liquid ) g=Vρg=0.3( ρ)g ,

implies ρ of the liquid =

3

2

g/cm

3

so relative density of the liquid = density of liquid / density of water =

1

3

2

=

3

2

Explanation:

only example

Answer:

2 cubic inches =

0.0328 litre

Explanation:

hope it helps you...

Answer:

2 Cubic inches = 0.0328 litre

Explanation:

Hope it helped u

Answer:

Your answer is attached above, Hope it will help u !!

Explanation:

Given A metal ball of mass 2 kg moving with speed 10 m/s collides head on with another stationary ball of mass 4 kg. If after collision both balls move together, then loss in kinetic energy of system due to collision will be

• So given mass of metal ball m1 = 2kg
• Speed = 10 m/s
• Mass of stationary ball m2 = 4kg
• Applying law of conservation of momentum we get
•                   v = m1v1 + m2v2 / m1 + m2
•                     = 2 x 10 + 4 x 0 / 2 + 4
•                            = 20 / 6
•                            = 3.33 m/s
• Now we have loss of energy
•                      = ½ m1v1^2 + ½ m2v2^2 – ½ (m1 + m2)v^2
•                        = ½ x 2 x (10)^2 + ½ x 4 (0)^2 – ½ (2 + 4)(3.33)^2
•                         = 100 – 33.2667
•                               = 66.7333 J

Reference link will be

https://brainly.in/question/3866920

Answer:

Various forces acting on the ball are as shown in figure. The three concurrent forces are in equilibrium. Using Lami's theorem,

sin150

∘

T

1

​

​

=

sin120

∘

T

2

​

​

=

sin90

∘

10

​

or  

sin30

∘

T

1

​

​

=

sin60

∘

T

2

​

​

=

1

10

​

∴T

1

​

=10sin30

∘

=10×0.5=0.5N

and T

2

​

=10sin60

∘

=10×

2

3

​

​

=5

3

​

N

Explanation: