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4 years ago

The apparent displacement of an object as it is viewed from two different positions is known as

1 answer:

3 0

This phenomenon is known as parallax. The simplest example is this: if you are sitting in the passenger seat, the gas tank needle may appear to read empty. However, if you are the driver, you will see that you are not on empty, but should get some gas.

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A low orbit satellite at 100 km altitude had a camera that resolved a car location to within 0.3 meter. Find the minimum diamete

NeX [460]

Answer:

Minimum diameter of the camera lens is 22.4 cm

The focal length of the camera's lens is 300cm

Explanation:

y = Resolve distance = 0.3 m

h = Height of satellite = 100 km

λ = Wavelength = 550 nm

Angular resolution

$tan\theta\approx \theta =\frac{y}{h}\\\Rightarrow \theta=\frac{0.3}{100\times 10^3}=3\times 10^{-6}$

From Rayleigh criteria

$sin\theta=1.22\frac{\lambda}{D}\\\Rightarrow D=1.22\frac{\lambda}{sin\theta}\\\Rightarrow D=1.22\frac{550\times 10^{-9}}{sin3\times 10^{-6}}=0.2236\ m=22.4\ cm$

Minimum diameter of the camera lens is 22.4 cm

Relation between resolvable feature, focal length and angular resolution

$d=f\Delta \theta\\\Rightarrow f=\frac{d}{\Delta \theta}\\\Rightarrow f=\frac{9\times 10^{-6}}{3\times 10^{-6}}=3\ m=300\ cm$

The focal length of the camera's lens is 300cm

3 0

3 years ago

How does the thickness of a planets atmosphere affect a planets average temperature

scZoUnD [109]

Answer:

Hey

The thickness of a planet's atmosphere determines the tempature. the reason why is because gas traps or reflects light. Gass molecules generally reflect light which means that photons bounce of gass molecules. But the space between these molecules allows most of the light to travel through and hit the planet.

4 0

3 years ago

Write the corresponding electron configuration for the following pictorial representation.

salantis [7]

<h2><u>Answer:</u></h2>

Before the 4p orbit starts to fill, the element must have:

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰,

which is Zn.

Depending on the number of electrons in the 4p, the element might be Ga to Kr, inclusive

5 0

3 years ago

A car drives 40 km due east and then 50 km due west .what is the cars overall displacement?

Firdavs [7]

Answer:10 km westExplanation:he go 40 east then 50 west 50-40 is 10 so he displaces 10 km and as west is more than east in terms of km so we will say that it's 10 km west pls mark as brainliest thanks

7 0

3 years ago

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To overcome an object's inertia, it must be acted upon by __________. A. gravity B. energy C. force D. acceleration

astra-53 [7]

In order to overcome an object’s inertia (resistance to change), it must be acted upon by an unbalanced force, so the answer to the problem is letter C.

7 0

3 years ago

Read 2 more answers