In Throwing it Back at 1:30 a flying saucer is travelling at 30 mach. How much energy would the shock waves release on the earth? Would the air displacement knock down trees or worse?

edit: spelling

Assuming a lifespan of 80 years

I've heard many times that" it isn't the speed that kills but rather the sudden stopping" which got me curious as to if there is actually a speed where we would kind of just disintegrate into nothing

Thor flies by throwing his magic hammer and not letting go. It’s hilarious. Anyway.

Assuming that Thor and his clothing weigh a combined total of 250 lbs and his hammer weighs 10 lbs, how many newtons of force would Thor need to apply to his throw to allow the hammer to carry him 1 mile through the air at an elevation of approximately 300 feet?

I remember seeing this somewhere perhaps here. But my google fu failed me.

Are eggs really proportionately rougher than the earth?

Ok so I'm looking for the dimensions needed for an air horn to hit a low Eb (E flat). The kind of air horn that goes on a truck. Train horns are too high pitch and I know I'm going to need a ton of air or a strong motor. But I can't find anything online that has to deal with longer trumpet, lower note. Just trying to find one that gets to an Eb. For those interested in why... War Rig. Thank you!

Accounting for bulk/wholesale discounts and pricing, how many condoms could one purchase for $50,000,000 American? And assuming they’re laid flat when shipping, how much space would they take up?

I can't figure this out. Is it solvable without knowing how long the work day is?...

Calvin has a part-time job picking apples. Each day he starts with an empty container which holds 960 apples and puts the apples that he picks into the container. Kelvin is finished his work for the day if either 3 hours have passed or he has filled the container.

Calvin Hicks 400 apples on the first day, and each day steadily improves the rate at which he picks apple by picking 21 more apples than the day before.

After how many days of working can you fill the container in less than 3 hours?

We never really think about how many pixels are on our screens. To put this in perspective, take a 1440p screen (also called 2K): with a 16:9 ratio, the resolution is 2560 × 1440 - which totals 3 686 400 pixels.

If you light up one pixel per minute, it would take exactly one day to light up a column of pixels, and it would take almost exactly 7 years to light up the whole screen.

Create an infinitely long semiconducting rope. Run this rope through a long series of copper wire. Launch end of rope towards/into the sun. Continue to create rope at the speed it is pulled into the sun. Rope close to sun pulls rope through the wire, generating E, degrading orbital velocity for sweet sweet electricity.

How many kilometers of rope do we need to create until we'll feel some noticeable force from the end? I assume there is a "escape velocity" of rope/minute, is it readily calculable? How much E can we pull out of the orbital body before we start breaking the solar system? (Perhaps we should play with not-earth first)

Bonus: How much E does each kilogram of rope generate over the course of it's journey to the sun? Energy/mass

Bonus Bonus: It probably becomes a matter of "the more mass you use the faster it degrades the body, so it's really a question of how long will it take to degrade a body considering this much mass of rope. Or how much rope will I need to start the cascade effect. Strap a big ol' battery to a small rocket that takes the electricity right before it's too late to leave and exits the system. How much mass to degrade how large an orbital body, and how much E can you get out of it all.

I’m kind of stumped on how to solve this. The answer is listed as “2ab”, I’d just like to know how to get to it.

i recently had a total ankle replacement surgery done and for a few months i have to shower sitting down. i used to be able to turn the shower on to full hot (we have our water heater set pretty low) and have a nice hot shower. i notice sitting down that the water is only warm, almost too cool for me.

for reference, the shower head is one of the rainfall style, mounted ~6" above my standing height and ~24" above my seated height.

so my question is how much temperature is actually lost as the water falls? and what's causing the loss of heat?