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Strike441 [17]
2 years ago
15

List three ways in which the study of science has made modern life different from that of 100 years ago​

Physics
1 answer:
stealth61 [152]2 years ago
8 0
Life Expectancy Was Shorter
Trains were faster to ride
The population explosion was not as on date
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Help me with this???
Vikentia [17]

Yo sup??

Average velocity=total distance covered/total time taken

total distance covered=4 + 8=12 miles

total time taken=6 hours

Therefore

average velocity=12/6

=2 miles/hour

Hope this helps

8 0
3 years ago
Astronomers study radio waves to learn about
il63 [147K]

Answer:

Radio astronomy began in 1933 when an engineer named Karl Jansky accidentally discovered that radio waves come not just from inventions we create but also from natural stuff in space.

3 0
4 years ago
According to this graph, the acceleration
skelet666 [1.2K]

Answer:

1 m/s^2

Explanation:

a=(v-u)/t

where,

a=acceleration

v=final velocity

u=initial velocity

(4.5-0)/4.5

1 m/s^2

7 0
3 years ago
The rock is tied to a string and swung in a circular path by a
victus00 [196]

Answer:

6.3

Explanation:

6 0
3 years ago
A cosmic ray travels 60.0 km through the earth's atmosphere in 500 μs , as measured by experimenters on the ground. You may want
zavuch27 [327]

Answer:

t' = 458.26 μs

Explanation:

given,

distance traveled by the cosmic ray = 60 Km

time = 500 μs

time taken for the journey according to cosmic ray = ?

now,

 v =\dfrac{distance}{time}

 v =\dfrac{60\times 10^3}{500\times 10^{-6}}

      v = 1.2 x 10⁸ m/s

according to time dilation formula

t' = t\sqrt{1-\dfrac{v^2}{c^2}}

t' = 500\sqrt{1-\dfrac{(1.2\times 10^8)^2}{(3\times 10^8)^2}}

     t' = 500 x 0.9165

    t' = 458.26 μs

6 0
3 years ago
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