How many type of linear expansion physic

Physics

1 answer:

Katena32 [7]3 years ago

7 0

three types

The three types of thermal expansions are Linear expansion , Superficial expansion and Cubical expansion.

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The moon has a mass of 7.35x1022 kg and is a lot farther away than is shown in textbooks. The mass of the

anyanavicka [17]

Answer:

$F=1.98\times 10^{20}\ N$

Explanation:

Given that,

The mass of a Moon, $M_m=7.35\times 10^{22}\ kg$

The mass of the Earth, $M_e=5.98\times 10^{24}\ kg$

The moon's mean orbit distance around the earth is, $r=3.84\times 10^8\ m$

We need to find the gravitational force exerted on the moon by the Earth.

The formula of gravitational force is given by :

$F=G\dfrac{M_mM_e}{r^2}\\\\F=6.67\times 10^{-11}\times \dfrac{7.35\times 10^{22}\times 5.98\times 10^{24}}{(3.84\times 10^8)^2}\\\\F=1.98\times 10^{20}\ N$

So, the required force is $1.98\times 10^{20}\ N$ .

3 0

3 years ago

A particle is attached to a spring and is pushed so that the spring is compressed more and more. As a result, the spring exerts

ad-work [718]

In order for particles to perform a simple harmonic motion, we must follow the law of force of the form F = -kx, where x is the displacement of the object from the equilibrium position and k is the spring constant. The force shown in F = -kx is always the restoring force in the sense that the particles are pulled towards the equilibrium position.

The repulsive force felt when the charge q1 is pushed into another charge q2 of the same polarity is given by Coulomb's law
F = k *q1* q2 / r^2.
It is clear that Coulomb's law is an inverse-square relationship. It does not have the same mathematical form as the equation F = -kx. Thus, charged particles pushed towards another fixed charged particle of the same fixed polarity do not show a simple harmonic motion when released. Coulomb's law does not describe restoring force. When q1 is released, it just fly away from q2 and never returns.

5 0

4 years ago

Sophie applies a 50 n force to push a box 2 meter across the floor calculate the smount of work done in the box

kicyunya [14]

Work done = force x distance

Work done = 50 x 2

Work done = 100J

4 0

3 years ago

A coil of 1,000 turns encloses an area of 85 cm^2. It is rotated in 0.090 s from a position where its plane is perpendicular to

Maurinko [17]

Answer:

The average emf induced in the coil is $5.6\times10^{-3}\ mV$ .