3 years ago

What is a superpositional principle

2 answers:

7 0

the principle that in a series of stratified sedimentary rocks the lowest stratum is the oldest. 2. n. the displacement of any point due to the superposition of wave systems is equal to the sum of the displacements of the individual waves at that point.

svlad2 [7]3 years ago

5 0

superposition principle.also known as superposition property

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A 19 g bullet is fired into the bob of a ballistic pendulum of mass 1.3 kg. When the bob is at its maximum height, the strings m

katovenus [111]

Answer:

217.43298 m/s

Explanation:

$m_1$ = Mass of bullet = 19 g

$m_2$ = Mass of bob = 1.3 kg

L = Length of pendulum = 2.3 m

$\theta$ = Angle of deflection = 60°

u = Velocity of bullet

Combined velocity of bullet and bob is given by

$v^2-u^2=2as\\\Rightarrow v=\sqrt{2aL(1-cos\theta)+u^2}\\\Rightarrow v=\sqrt{2\times 9.81\times (1-cos60)+0^2}\\\Rightarrow v=3.13209\ m/s$

As the momentum is conserved

$m_1u=(m_1+m_2)v\\\Rightarrow u=\frac{(m_1+m_2)v}{m_1}\\\Rightarrow v=\frac{(0.019+1.3)\times 3.13209}{0.019}\\\Rightarrow v=217.43298\ m/s$

The speed of the bullet is 217.43298 m/s

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3 years ago

How could you weaken the force of gravity between cars and the Earth? **I WILL MARK BRAINLEST**

scoundrel [369]

Answer:

The answer you have selected is correct.

Explanation:

Increase radius, force of gravity decreases

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A 10n falling object encounters 4n of air resistance. what is the net force on the object?

Margaret [11]

It would be 6n down.

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yulyashka [42]

Answer:

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K= 2 atoms

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