[Request] is this drone stopped or moving and how fast is it if the car is going 100 k/h

https://redd.it/1sok5qs
@TheyDidTheMath

[Request] How far could a 16 inch shell travel if instead of a powder charge, a one megaton nuclear device was the “propellant”. Assume the gun’s components could withstand the blast.
https://upload.wikimedia.org/wikipedia/commons/e/ea/BB61_USS_Iowa_BB61_broadside_USN.jpg

https://redd.it/1sogxmz
@TheyDidTheMath

[Request] How high are these going? What kind of explosives/force is used to make them go that high?

https://redd.it/1soo6xf
@TheyDidTheMath

[REQUEST] what's the chances of this happening
https://redd.it/1sosqlc
@TheyDidTheMath

[Request] How much force would it take to tip the top rock over? And, how many humans would it take to acomplish that?
https://redd.it/1soxerh
@TheyDidTheMath

[Request] How tall is this mobile crane?

https://redd.it/1soz1ck
@TheyDidTheMath

[Self] The world’s longest Spotify playlist is 5 quintillion hours, 570 billion years, or 41x the age of the universe.
https://redd.it/1sp0qhy
@TheyDidTheMath

[request] Tungsten sphere weight
https://redd.it/1sp1k97
@TheyDidTheMath

[Request] What are the odds of winning a car?

https://redd.it/1sp65yz
@TheyDidTheMath

Self If all ocean water evaporated, it would leave behind about 4.8 × 10^16 tonnes of salt (forty-eight quadrillion tonnes), enough for an average salt layer about 62 meters thick across the seafloor.

Assuming:

average seawater salinity of 35 g/kg

total ocean volume of 1.335 billion km\^3

seawater density of 1,027 kg/m\^3

ocean area of about 360 million km\^2

and a solid halite density of about 2,160 kg/m\^3

First, total ocean water mass:

1.335e9 km\^3 x 1e9 m\^3/km\^3 x 1,027 kg/m\^3
= 1.371e21 kg of seawater

Then total dissolved salts:

1.371e21 x 0.035
= 4.80e19 kg of dissolved salts

That's about 4.80e16 tonnes of salt.

Turn that into solid salt volume:

4.80e19 kg / 2,160 kg/m\^3
= 2.22e16 m\^3

Now spread that across today's seafloor:

2.22e16 m\^3 / 3.60e14 m\^2
= 61.7 m

So if all ocean water just disappeared and all the dissolved salts were left behind, the seafloor would be covered by an average salt layer of about 62 meters.

Obviously real life would be messier than that, since different salts precipitate at different stages and it would not settle into one perfectly flat, uniform layer, but as a back of the envelope estimate, about 60 meters is the ballpark.

https://redd.it/1sp81d2
@TheyDidTheMath

[Request] How much did this Wrigley Field Cup Snake cost to drink?
https://redd.it/1sp8mse
@TheyDidTheMath

[Request] Secondary question to this- how far backward would the ship be pushed assuming no wind or waves in Salt water?
https://upload.wikimedia.org/wikipedia/commons/e/ea/BB61_USS_Iowa_BB61_broadside_USN.jpg

https://redd.it/1sp46d5
@TheyDidTheMath

[Other] Question about the viability of rocket sled launch
https://redd.it/1spbn1m
@TheyDidTheMath

[Request] Is this possible to trigger airbag just by kicking the sensor ?
https://www.youtube.com/shorts/JoVEHeabrHg

https://redd.it/1sp5t32
@TheyDidTheMath

[Request] What would happen to the Lunar Orbit if the moon magically gained 25% mass (size optional, unless it could be a big factor)
https://redd.it/1spirkt
@TheyDidTheMath

[Request] if a person was attending a live concert while simultaneously listening to a live radio broadcast of it, how far away would they need to be to hear the radio noticeably sooner than the “live” sound?
https://redd.it/1spiy5e
@TheyDidTheMath

[Request] How strong does bryce James need to be at least in this photo?
https://redd.it/1splqf3
@TheyDidTheMath

[request] Is it true That a single cow can feed a family for a whole year ?
https://redd.it/1sppkfo
@TheyDidTheMath