# All Activity

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3. ## BOOKS: The Ultimate Regents Physics Question and Answer Book - 2016 ed.

Correct, the PDF is not editable or printable, so it cannot be imported into the Notes app.

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7. ## Credit Card Physics

wow krdavis18 thanks for this
8. ## Understanding the Physics Behind the "Gravity" Movie Scene

Hi everyone, I recently watched the movie "Gravity" and was fascinated by the realistic depiction of space. One scene that particularly caught my attention was when the characters use their thrusters to navigate through space. I'm curious about how accurately the movie portrayed the physics of such maneuvers. I also check this: https://aplusphysics.com/community/index.php?/blogs/entry/29979-another-example-of-physics-in-a-moviealteryx But I have not found any solution. Could someone explain the real physics behind using thrusters in zero gravity? How close is the movie's depiction to what actually happens in space? Any insights or explanations would be greatly appreciated! Thanks!
9. ## Kinematic magnitude of acceleration

Hello @AnitaMorton🙂 To calculate the magnitude of acceleration of a cart during the time interval from t = 0 to t = 0.30 Find out Initial and Final Velocities then calculate the change in velocity. then determine the time interval t = 0 to t = 0.30. then calculate the acceleration. then find out the magnitude of acceleration. I hope this will helpful for you
10. ## KT Explorations Inc.

It's too cute. 🤩 I love this.
11. ## Physics of a Trampoline

We all use trampolines, but now I understand how they work completely!
12. ## 3.43Q

Exactly .7 seconds after the ball is released, you don't (yet) know how far it has fallen. You could solve for the displacement of the ball after 0.7 seconds, however. If, instead, the problem had asked "how fast is the ball traveling the instant before it hits the ground," in that case you would use 4.0 meters as the displacement, but you would not know t (elapsed time).
13. ## 3.43Q

How come the displacement of the ball won’t be 4m?
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