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3 years ago

Any clue on this one

Physics

1 answer:

rodikova [14]3 years ago

3 0

Answer: First option

Explanation: The higher the frequency, the higher the energy.

λν=c where λ is the wavelength, ν is the frequency and c is the speed of light. So when wavelength decreases, v increases and so does energy.

An AM radio wave has a very long wavelength. It therefore has a very low frequency and low energy.

A light wave has a very short wavelength. It therefore has a high frequency and high energy.

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Newton second law of motion relates to force, what, and acceleration

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Answer:

Newtons second law of motion relates to force, inversely related to its mass and acceleration.

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A pitot tube system measures the static pressure in 50 cm diameter duct containing air (\rho\:=rho =1.1 kg/m3) as 97 kPa and the

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Answer:

The velocity in duct is 73.854 m/s.

Explanation:

Given that Pitot tube measuring velocity v in 50 cm diameter duct contain air of density 1.1 $\frac{kg}{m^{3} }$ .

Also, P1 = Pressure in duct is 97kpa and P2 = Pressure at impact or stagnation point is 100kpa.

Using Bernoulli equation,

$P+\frac{1}{2}\rho v^{2} +\rho gh=0$

When air is flowing through duct,

$97,000+\frac{1}{2}\rho v^{2} +\rho gh1=0$

When air is at stagnation point.

$1,00,000+0+\rho gh1=0$

Comparing both the equation,

$97,000+\frac{1}{2}\rho v^{2} +\rho gh1=1,00,000+\rho gh1$

$\frac{1}{2}\rho v^{2}=3000$

$0.55v^{2}=3000$

$v^{2}=5454.54$

v=73.854 m/s.

Therefore, The velocity in duct is 73.854 m/s.

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An ocean wave is an example of what type of wave

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It is called a surface wave (rayleigh wave) that transmits its energy with the wind blowing onto its surface.Hope this helps

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Students are given the following information about a 2.0 kg, motorized toy boat on water. what net force is exerted on the boat

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The motorized toy boat moves at 8 m/s (u) at 4 s and at 8 m/s (v) at 8 s. We can calculate the acceleration (a) in that period using the following kinematic expression.

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The motorized toy boat experiences a net force of 0 N between 4 s and 8 s.

Learn more: brainly.com/question/13447525

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