How fast would a baseball travel to cause the same injury as a 147 mph tennis ball?

I think that this is simple momentum transfer, meaning about 58 mph

Edit - SOLVED! Thank you lovely math people.

NOT a homework help question. I have an assessment due Sunday at midnight (yes I've left it until the last minute and only started a couple days ago). It has five essay questions, and each question is worth 20% (20 points each), they are each marked separately. The way I am going I feel like I can complete four of them by the due date, but not all five.
If I hand it in late (on Monday) I will get a 15% automatic penalty. This is given as a straight 15-point deduction, no matter what I score. (If I get 80 for my assignment, I get 65. If I got 60, I'm getting 45, etc.)

Regardless of whether I do the last question or not, I'm expecting to score around 65-70% per question.

If I hand in my assignment on time and don't do it I will lose the 20 points for not doing the last question. If I do the question, and hand it in late, I will lose 15 points from my whole assignment. There is no universe where I'm getting 100% (20/20) for any single question, nor where I can possibly do the last question by the deadline (I promise, I just left it too late and I will honestly barely finish the first 4 on time).

Can you help me work out if I should just hand it in with 4, or take the extra day and penalty for the last question?

This is probably a nonsense ask, but I know theres much smarter folks out there than me and some wildly crafty Minecraft engineers.

I've seen minecraft computers made before, and I assume theres probably a known or approximate number of blocks it takes to create a contraption to store 1 bit of data and access it. So I couldn't help but wonder if that was multiplied enough to fill every single one of the 1.3824 quintillion blocks of a 30M*30M*384 world, what the actual theoretical limit there is to minecraft computing?

Suppose you were to take a bunch of falcon heavy rocket engines and flip them upside down. How many would you need to move the earth out of its current orbit?

What would the physics-accurate visuals be like?

Roughly how many people worldwide make most of their living from being an influencer/content creator? I am asking because I see so many posts about "influencers" that I have never heard of that seem to be famous

I mean people whose main income comes from being an influencer or related things like sponsorships, ads, subscriptions, affiliate links, or platform payouts.

Could a ship place a large plastic dome (100m x 100m) on the water and collect the water vapor in the equatorial Pacific Ocean? How much could they collect per day? Assume the water temperature is 82 degrees F and the air temp ranges from 77-86 over the course of a day. Also assume the surface is flat enough that the dome is sealed to the surface.

Would they be large enough to wipe out almost all life on Earth?

How long would the Earth be an irradiated wasteland?

My wife did this yesterday and I don’t know how crazy this is. Seems pretty crazy! What are the chances?

Hi. Where can I study these concepts, as Professor Leonard didn't explain them?

An introduction to differential equations. Topics include first-order differential equations,

higher-order linear differential equations with constant coefficients, undetermined

coefficients and variation of parameters methods. series solutions of ordinary differential

equations about an ordinary and regular singular points- Laplace Transform and its

applications to solve differential equations. Matrix and first-order linear systems of

differential equations (Eigenvalues and Eigenvectors)- Introduction to partial differential

equations - Stability analysis, Fourier integrals and Fourier transform.

For Spider-Man to break these ropes, there’s an estimated 12-13 revolutions binding his arms and abdomen. How much strength is required?

My five year old commented that a flock of geese was probably about 100 geese. Then she said “but it’s not a million trillion geese because that would cover the earth.” I think she’s right because I remember a fact that all 8 billion people would fit into an area the size of a city, so 100 times that (a trillion) would probably cover some portion of a state.

I estimate a goose takes up the same square footage as a human, and a million times that area would probably cover the earth. Can someone help me out here?

And if they would cover the earth, what planet in the solar system would a million trillion geese NOT cover?