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3 years ago

When block is lying on smooth surface its weight is balanced by

Physics

1 answer:

Afina-wow [57]3 years ago

5 0

Explanation:

The weight of the block is balanced by the normal force acting upon the block by the surface.

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Which is a true statement?

aivan3 [116]

Hi! The answer is ‘B’! Because the nucleus is found at the center and contains protons (positive charge) and neutrons (no charge)

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3 years ago

Assume that the pressure in a room remains constant at 1.01

Ray Of Light [21]

Answer:

Explanation:

Given

Pressure $P_1=1.01\times 10^5 Pa$

Volume of air $V=60 m^3$

Initial Temperature $T_1=289 K$

$T_2=302 K$

Initial moles is given by

$PV=nRT$

$n_1=\frac{P_1V_1}{RT_1}$

$n_1=\frac{1.01\times 10^5\times 60}{R\cdot 289}$

when some gas escape out

no of moles is equal to

$n_2=\frac{P_2\times V_2}{R\cdot T_2}$

$n_2=\frac{1.01\times 10^5\times 60}{R\cdot 302}$

remaining no of moles $=n_1-n_2$

$=\frac{1.01\times 10^5\times 60}{R\cdot 289}-\frac{1.01\times 10^5\times 60}{R\cdot 302}$

$=\frac{1.01\times 10^5\times 60}{R}(\frac{1}{289}-\frac{1}{302})$

Mass of air escape out

$=(n_1-n_2)\times M$

$=(\frac{1.01\times 10^5\times 60}{R}(\frac{1}{289}-\frac{1}{302}))\times 28$

$=25.272\times 10^3\ g$

$m=25.272\ kg$

7 0

4 years ago

tom and huck are pulling a table in the same direction at the same time with 7N of force each,what is the net force acting on th

defon

We have that The net force acting on the table is

Fn=14N

From the question we are told

tom and huck are pulling a table in the same direction at the same time with 7N of force each,what is the net force acting on the table

Generally the equation for the Net Force is mathematically given as

Fn=Toms Force +Hucks Force

Therefore

Fn=7+7

Fn=14N

In conclusion

The net force acting on the table is

Fn=14N

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brainly.com/question/21811998

4 0

3 years ago

which statement best describes how changes behave a.opposites charges repel against each other and like charges attract to each

Anon25 [30]

I think it is B hope this helps

God Bless

7 0

3 years ago

Read 2 more answers

12. One object has half the mass of another object. The first object also has half the ---.

Tanya [424]

The first object also has half the inertia.

Answer: Option A

<u>Explanation:</u>

Inertia is the tendency of an object to remain in its state. It resists the change in the state of object due to any external forces. So the inertia is the property of an object to resists the change in its state due to any kind of external force. Thus as the mass decreases, the central mass of inertia of the object will also decrease as both are directly proportional to each other.

3 0

3 years ago

When block is lying on smooth surface its weight is balanced by​

When block is lying on smooth surface its weight is balanced by