3 years ago

What is longitudinal wave?

1 answer:

7 0

Answer: The definition is a longitudinal wave is a wave consisting of a periodic disturbance or vibration that takes place in the same direction as the advance of the wave

Explanation:

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Incident rays parallel to the axis of a concave mirror reflect parallel to the axis.

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No they don't. Incident rays parallel to the axis of a concave mirror
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3 years ago

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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4 years ago

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Sonbull [250]

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1.Stronger bones 2.Joint flexibility

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3 years ago

Part 1: What is your Reaction Time?

nlexa [21]

Answer:

1. A ruler is a common instrument used for measuring the length of small objects

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3 years ago

A truck accelerating at 0.0083 meters/second2 covers a distance of 5.8 × 104 meters. If the truck's mass is 7,000 kilograms, wha

anygoal [31]

<span>F = m*a = 7000kg * 9.8N/kg = 68,600 N.

68,600 N is your answer
</span>

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3 years ago

What is longitudinal wave?​

What is longitudinal wave?