Answer:
Retrogade Motion
Explanation:
The planet movement is called a retrogade motion meaning that it is moving in an opposite path to the stars.
Answer:
For this, you need the pythagorean theorem, which is a^{2}+ b^{2}= c^{2}
Your a should be 12, and your b should be 35. So now you can solve for c, which equals 37 miles.
So the answer is 37 miles
Metallic and non-metallic
Hope this helps!
Running on sand requires 1.6 times more energy spent than running on hard surface, so the force applied by our foot on sand is less.
1. The man will be able to move the rock. See diagram.
Moment of Man's force : 400 N * 1.2 meter = 480 N-m
Rock's Weight = 50 Kg * 9.8 m/sec² = 490 Newtons
Moment of Rock's weight : 490 N * 0.80 meters = 392 N-m
<em><u> Moment of Man's Force is MORE : 480 N-m > 392 N-m</u></em><em><u> So man will be able to lift the rock.</u></em>2. Let is look at the diagram - second one.
Let us assume that the fulcrum (Pivot) is placed at X meters from the rock.
So moment of Girl's force about Pivot = 200 N * (2 - X) meters = 400 - 200 X
Moment of Rock's weight = 490 N * X = 490 X
As the Girl is able to lift the rock, 400 - 200 X > 490 X
Hence 400 > 200 X + 490 X
400 > 690 X
X < 400/690 = 0.58 meters
<u>
<em> If the Pivot is placed closer than 0.58 meters or 58 cm to the Rock, then </em></u>
<u>
<em> she can lift the rock.</em></u>