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pentagon [3]
3 years ago
7

What happens if we nuke a city?

Physics
2 answers:
nignag [31]3 years ago
3 0
The shadow would subsequently drop the temperature in the city, forcing warmer air to rush in and violently destroy countless buildings. There would also be “black rain,” which would be the radioactive ash and dust that would liquify and pour down on the city and we would all die.
irga5000 [103]3 years ago
3 0

Answer:

Those who survived the bomb may become deaf or blind, as well as suffer catastrophic burns and injuries. Even people who were not seriously injured could become trapped within a structure or unable to navigate through the wreckage.

Explanation:

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In free fall the object with less air resistance falls with a greater acceleration
ANEK [815]

terminal velocity ... greater speed ... acc is 10m/s/s

5 0
3 years ago
A force of 200 N stretches a spring 30 cm. What is the spring constant of the spring? How far would this spring stretch with a f
bija089 [108]

Hooke's Law

F = k. Δx

Δx = 30 cm = 0.3 m

200 = k . 0.3

\tt k =\dfrac{200}{0.3}= 666.6

the spring stretch for 100 N:

\tt \Delta x=\dfrac{100}{666.6}=0.15=15\:cm

4 0
2 years ago
A child is riding a merry-go-round that is turning at 7.18 rpm. if the child is standing 4.65 m from the center of the merry-go-
Alisiya [41]
First we need to convert the angular speed from rpm to rad/s. Keeping in mind that 
1 rev= 2 \pi rad
1 min = 60 s
the angular speed is
\omega = 7.18  \frac{rev}{min} \cdot  \frac{2 \pi}{60} = 0.75 rad/s

And so now we can calculate the tangential speed of the child, which is the angular speed times the distance of the child from the center of the motion:
v= \omega r = (0.75 rad/s)(4.65 m)=3.50 m/s
3 0
3 years ago
How far will a you travel if you run for 10 minutes at 2 m/sec?
ruslelena [56]
You must first convert minutes to seconds so 10*60=600

Then multiply the number of seconds by the speed so 600*2=1200 m
4 0
3 years ago
Read 2 more answers
A car covers 400m distance in 50 sec find it's speed?
Lena [83]

Answer:

\boxed {\boxed {\sf 8 \ m/s}}

Explanation:

Speed is equal to distance over time.

s=\frac{d}{t}

The distance is 400 meters and the time is 50 seconds.

d= 400 \ m \\t= 50 \ s

Substitute the values into the formula.

s=\frac { 400 \ m }{ 50 \ s}

Divide.

s= 8 \ m/s

The speed of the car is 8 meters per second.

4 0
3 years ago
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