
- Mass ( m ) of the body = 4,500 kg
- velocity of the body = 20 m/s


★ <u>Calculating the kinetic energy</u>;


Where ,
- (Ke) = kinetic energy.
- m = mass
- v = velocity






hence the kinetic energy (ke) is 9,00,000 Joules...!!
Answer:
0.42×10^{-4} m^2
Explanation:
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The same energy source that powers plate tectonics is also responsible for for the Earth's dynamo. Energy is released when material from our planets liquid core cools and solidifies onto the solid core. This energy stirs up the motions of the liquid core, and these motions generate a magnetic field.While there is also fluid motion in the mantle, it does not produces an appreciable magnetic field : The silicon rich rocks that comprises the mantle are poor conductors of electricity, and their motions are million times slower than those in the outer core. Hope this helps!
Astronomy can best described as the <span>study of objects beyond the Earth's atmosphere - such as other celestrial bodies in our galaxy and other galaxies, starts their movement and formation. (D.)</span>
The Inertia is 22. 488 kg. m² and the speed just before it hits the ground is 6. 4 m/s
<h3>
How to determine the inertia</h3>
Using the formula:
I = 1/2 M₁R₁² + 1/2 M₂R₂²
Where I = Inertia
I = 1/2 * 0.810* (2. 60)² + 1/2 * 1. 58 * (5)²
I = 1/2 * 5. 476 + 1/2 * 39. 5
I = 2. 738 + 19. 75
I = 22. 488 kg. m²
To determine the block's speed, use the formula
v = 
v = 
v = 
v = 6. 4 m/s
Therefore, the Inertia is 22. 488 kg. m² and the speed just before it hits the ground is 6. 4 m/s
Learn more about law of inertia here:
brainly.com/question/10454047
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