Undergrad Impact on Earth: Calculating Energy

  • Thread starter Thread starter mukuruku
  • Start date Start date
  • Tags Tags
    Earth Impact
Click For Summary
To classify the impact of an object hitting Earth based on its mass and velocity, understanding the object's shape and density is crucial, as these factors significantly influence the impact effects. An online tool is available for calculating potential impact outcomes. The discussion highlights that Earth’s atmosphere alters the dynamics of falling objects, with examples like a flat sheet of paper illustrating this concept. For dense spherical objects, specific equations may exist to predict impact results. Accurate classification requires considering both physical properties and atmospheric interactions.
mukuruku
Messages
2
Reaction score
0
Hey guys,
I have object i know its mass and velocity so i have energy. I need some king of classification of what impact it will make if it hits earth.
 
Astronomy news on Phys.org
Here’s an online tool. https://impact.ese.ic.ac.uk/ImpactEarth/ImpactEffects

As a side note, Jay Melosh did a Ph.D. at Caltech under Gell-Mann on quarks. He is known for his research on the mechanics of impact cratering. There are many paths for a physicist to take. He died a couple of years ago. May he rest in peace.
 
Last edited:
mukuruku said:
Hey guys,
I have object i know its mass and velocity so i have energy. I need some king of classification of what impact it will make if it hits earth.
Because Earth has an atmosphere, it makes a huge difference what size and shape it is. For example, a flat sheet of paper flutters as it falls, the mass and velocity of the paper make little difference.

If you mean a dense spherical object, there may be equations.
 

Thread 'Lunar Orbit Issues & Lunar Clocks'

I recently purchased a lunar clock intended as a Christmas present for a young family friend who has become interested in astronomy. The clock face shows twelve images of the Moon in all its main phases, with the Full Moon depicted at the "twelve o'clock" position. Now I purchased this clock especially early to allow time to check on its accuracy. After waiting for a full lunar orbit to occur, I have since discovered that the clock time when measured relative to its lunar images (that's to...
View full post »

Similar threads

High School Asteroid 2024 YR4 has a 1% risk of a multi-megaton impact in 2032 (now ruled out)
  • · Replies 35 ·
2
Replies
35
Views
7K
High School Deriving the Approach Velocity of Meteorites
  • · Replies 6 ·
Replies
6
Views
3K
High School Asteroid 2024 BX1 entered Earth's atmosphere over Germany 21 Jan 2024
  • · Replies 1 ·
Replies
1
Views
3K
High School Is the Earth in its original orbit?
  • · Replies 11 ·
Replies
11
Views
3K
High School Meteor detection/prediction: One over Toronto, ON, Canada
  • · Replies 5 ·
Replies
5
Views
2K
Asteroid 99942 Apophis impacting the Earth in 2029
  • · Replies 57 ·
2
Replies
57
Views
11K
Test question: What is true for a mechanical impact?
  • · Replies 7 ·
Replies
7
Views
1K
Undergrad What Were Earth's Rotation Rate and Tilt Before and After the Theia Impact?
  • · Replies 2 ·
Replies
2
Views
2K
High School Earth & Moon Gravity Gradient: Investigating Its Impact
  • · Replies 33 ·
2
Replies
33
Views
5K
How might electronics be different if AC voltage was 72V at 45 Hz?
  • · Replies 30 ·
2
Replies
30
Views
977