2 years ago

An object falls for 7 seconds. How far does it fall?

Physics

1 answer:

aliina [53]2 years ago

5 0

Answer:

It depends on what the object is and what planet it is on and what the conditions are.

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A topical,cause and affect, chronological, spatial, pattern arranges main points according to physical direction or location.

Lady bird [3.3K]

<span>A spatial pattern arranges main points according to physical direction or location.</span>

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3 years ago

You stand on a straight desert road at night and observe a vehicle approaching. This vehicle is equipped with two small headligh

choli [55]

Answer:

They can be seen from a distance of 4.372 kilometers.

Explanation:

Using the Reyligh creterion for diffraction through a circular aperture we have

$\frac{x}{D}=\frac{1.22\lambda }{d}$

where symbol's have their usual meaning

thus applying values we get

$D=\frac{dx}{1.22\lambda }$

$\therefore D=\frac{0.633\times 4.61\times 10^{-3}}{1.22\times 547\times 10^{-9}}\\\\D=4372.77m\\=4.372km$

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3 years ago

If the amplitude of a simple harmonic oscillator is doubled, by what factor does the total energy increase?

dybincka [34]

Answer:

c)by a factor of four

Explanation:

The total energy of a simple harmonic oscillator is given by

$E=\frac{1}{2}kA^2$

where

k is the spring constant of the oscillator

A is the amplitude of the motion

In this problem, the amplitude of the oscillator is doubled, so

A' = 2A

Therefore, the new total energy is

$E'=\frac{1}{2}k(2A)^2=4(\frac{1}{2}kA^2)=4E$

So, the total energy increases by a factor 4.

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3 years ago

PLEASE HURRY

Rashid [163]

Answer:

1:knowledge of the structure of DNA

2:an understanding of hemoglobin

4:ground fault circuit interrupters

7:aerogel

Explanation:

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2 years ago

Why are the oldest parts of the ocean floor no older than about 200 million years

ivann1987 [24]

The reason is because the molecules didnt come togeather around that time

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3 years ago