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2 years ago

5.Acarexhibitsaconstantaccelerationof0.300m/s2paralleltotheroadway.Thecar

Physics

1 answer:

lana [24]2 years ago

6 0

okay , but what is this i dont understand .

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Radio waves travel at 3.00 · 108 m/s. Calculate the wavelength of a radio wave of frequency 600 kHz. (6.00 · 105 Hz).

frutty [35]

Hmm, I got that the wavelength is 500 meters.

4 0

3 years ago

Read 2 more answers

(will give brainliest to whoever is first and gives reason) A mass is spun in a circle with a frequency of 40Hz. What is the per

Blizzard [7]

Answer:

$\huge\boxed{T = 0.025\ seconds}$

Explanation:

<u>Given:</u>

Frequency = f = 40 Hz

<u>Required:</u>

Time period = T = ?

<u>Formula:</u>

$\sf T = 1 / f$

<u>Solution:</u>

T = 1 / 40

T = 0.025 seconds

$\rule[225]{225}{2}$

Hope this helped!

4 0

3 years ago

A thin beam of light of wavelength 50 μm (in the infrared portion of the em spectrum) goes through

Brut [27]

Solution :

Given :

Wavelength of the thin beam of light, λ = 50 μm

Distance of the screen from the slit, D = 3.00 m

Width of the fringe, Δy = ±8.24 mm

Therefore, width of the slit is given by :

$d=\frac{n \lambda D}{\Delta y}$

$=\frac{2 \times 50 \times 10^{-9} \times 3}{2 \times 8.24 \times 10^{-3}}$

= 0.000018203 m

= 0.0182 mm

= 0.018 mm

The intensity of light is given by :

$I=I_0\left(\frac{\sin \beta /2}{\beta/ 2}\right)^2$ , where $\beta=\frac{2 \pi D \sin \theta}{\lambda}$

$I=I_0\left(\frac{\sin \frac{\pi d \sin \theta}{\lambda}}{\frac{\pi d \sin \theta}{\lambda}}\right)^2$

$I=I_0\left(\frac{\sin \frac{\pi d y}{D\lambda}}{\frac{\pi d y}{D\lambda}}\right)^2$

Now, $\frac{dy}{D \lambda} = \frac{8.24 \times 10^{-3}\times 0.018 \times 10^{-3}}{4 \times 50\times 10^{-9}\times 4}$

= 0.1854

≈ 0.18

$I=I_0\left(\frac{\sin 0.56}{0.56}\right)^2$

$=I_0 \times 0.81$

= 2 x0.81

$= 1.62 \ W/m^2$

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3 years ago

Lowered its infancy motel the weight by introducing increase prenatal and neonatal care for mothers have a social and cultural b

Leni [432]

It grows every time it needs to grow for the population of the environment

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3 years ago

PLEASE HELP!

luda_lava [24]

Answer:

When a body is placed on a table top, it exerts a force equal to its weight downwards on the table top but does not move or fall. (i) Name the force exerted ...

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