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Ostrovityanka [42]

3 years ago

7

In a low-density cloud, the internal pressure is much too low to support the weight, so the cloud must __________, eventually pr

oducing the galaxy s disk.

1 answer:

andrey2020 [161]3 years ago

3 0

The answer to this question is flatten

so the cloud must <u>flatten</u> eventually producing the galaxy s disk.

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In April 1974, Steve Prefontaine completed a 10 km race in a time of 27 min, 43.6 s. Suppose "Pre" was at the 8.13 km mark at a

SOVA2 [1]

Answer: $0.084 m/s^2$

Explanation:

Given

Total time=27 min 43.6 s=1663.6 s

total distance=10 km

Initial distance $d_1=8.13 km$

time taken=25 min =1500 s

initial speed $v_1=\frac{8.13\times 1000}{25\times 60}=5.6 m/s$

after 8.13 km mark steve started to accelerate

speed after 60 s

$v_2=v_1+at$

$v_2=5.6+a\times 60$

distance traveled in 60 sec

$d_2=v_1\times 60+\frac{a60^2}{2}$

$d_2=336+1800 a$

time taken in last part of journey

$t_3=1663.6-1560=103.6 s$

distance traveled in this time

$d_3=v_2\times t_3$

$d_3=\left ( 5.6+a\times 60\right )103.6$

and total distance $=d_1+d_2+d_3$

$10000=8.13\times 1000+336+1800 a+\left ( 5.6+a\times 60\right )103.6$

$1870=336+1800 a+\left ( 5.6+a\times 60\right )103.6$

$a=0.084 m/s^2$

5 0

3 years ago

What are the uses of evaporative salts?

Makovka662 [10]

<span>to preserve foods, dye fabric, and DE-ice roads i hopes this helps

</span>

4 0

2 years ago

The muscular system and the skeletal system of the human body work together to

AlladinOne [14]

A. Allow movement.
Muscles connect to your skeleton and they contract and move the skeleton along. <span>They help the process of movement happen in a smoother manner.</span>

4 0

2 years ago

Read 2 more answers

Within a vacuum, the property to all electromagnetic waves is their

bezimeni [28]

The answer is D) Velocity

7 0

3 years ago

The wave length of violet light rounded to the nearest nanometer is a __ nm

nataly862011 [7]

Wavelength= speed / frequency

so.....3× 10^8 / 7.26×10^14
= .413× 10^(-6)

in scientific notation= 4.13×10^(-7)

in nanometer = 413 nm

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2 years ago