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3 years ago

Frost wedging in a sentence

Physics

1 answer:

Brrunno [24]3 years ago

7 0

example "How would i put frost wedging in a sentence?" LOL hope this helped

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What is the kinetic energy of a 55 kilogram skier traveling at meters per second

Rasek [7]

How many meters per second was it traveling

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4 years ago

What is the disorder caused when cells lose the ability to control growth and continue to divide?

8090 [49]

The answer is cancer that is the reason there is no complete cue in people

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3 years ago

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wave

Llana [10]

Explanation:

It is given that,

The thinnest soap film appears black when illuminated with light with a wavelength of 535 nm, $\lambda=5.35\times 10^{-7}\ m$

Refractive index, $\mu=1.33$

We need to find the thickness of soap film. The soap film appear black means there is an destructive interference. The condition for destructive interference is given by :

$2t=m\dfrac{\lambda}{\mu}$

t = thickness of film

m = 0,1,2....

$\mu$ = refractive index

$t=m\dfrac{\lambda}{2\mu}$

$t=\dfrac{\lambda}{2\mu}$

For thinnest thickness, m = 1

$t=1\times \dfrac{5.35\times 10^{-7}\ m}{2\times 1.33}$

$t=2.01\times 10^{-7}\ m$

Hence, this is the required solution.

6 0

3 years ago

s) A body of mass 2 kilograms moves on a circle of radius 3 meters, making one revolution every 5 seconds. Find the magnitude of

jeyben [28]

Answer:

Centripetal force acting on the body = 9.47 N

Explanation:

Mass of body, m = 2 kg

Radius, r = 3 m

It makes one revolution in 5 seconds.

Period, T = 5 s

$\texttt{Angular velocity, }\omega =\frac{2\pi }{T}=\frac{2\pi }{5}=1.256rad/s$

Centripetal force, F = mrω²

F = 2 x 3 x 1.256² = 9.47 N

Centripetal force acting on the body = 9.47 N

8 0

3 years ago

A sinewave has a period (duration of one cycle) of 645 μs (microseconds). What is the corresponding frequency of this sinewave,

Oliga [24]

The corresponding frequency of this sinewave, in kHz, expressed to 3 significant figures is: 155 kHz.

Given the following data:

Period = 645 μs

Note: μs represents microseconds.

Conversion:

1 μs = $1$ × $10^-6$ seconds

645 μs = $645$ × $10^-6$ seconds

To find corresponding frequency of this sinewave, in kHz;

Mathematically, the frequency of a waveform is calculated by using the formula;

$Frequency = \frac{1}{Period}$

Substituting the value into the formula, we have;

$Frequency = \frac{1}{645 * 10^-6}$

Frequency = 1550.39 Hz

Next, we would convert the value of frequency in hertz (Hz) to Kilohertz (kHz);

Conversion:

1 hertz = 0.001 kilohertz

1550.39 hertz = X kilohertz

Cross-multiplying, we have;

X = $0.001$ × $1550.39$

X = 155039 kHz

To 3 significant figures;

Frequency = 155 kHz

Therefore, the corresponding frequency of this sinewave, in kHz is 155.

Find more information: brainly.com/question/23460034

6 0

3 years ago