Eₖ = √1/2 mv²
Eₖ/v² = 1/2 m
2Eₖ/v² = m
mgh = 1/2 mv²
gh = 1/2 v²
2gh = v²
v = √2gh
= √2 × 10 N/kg × 2 m
= 6.324 ms⁻¹
m = 9.8/(6424)²
= 9.8/39.993
= 0.245 g
I am not sure if it's correct.
i transposed for m in the first equation then to find the velocity I combined the potential and kinetic energy equation. there was no mass because velocity doesn't depend on the mass
Then I used earth's gravitational field strength (g) 10 N/kg and the 2 m was the height provided in the question
you can try working and see if you get the same
The two Egyptian kingdoms, Upper and Lower Egypt, arose because theland near the First Cataract and the Nile Delta, respectively, wassuitable for agriculture. They united around 3000
Answer:
Earth is closest to the sun during the winter solstice. :)
The measure of a central angle in degrees is 11.25°.
<h3>How to get the values?</h3>
The measure of a central angle in degrees will be:
= 360°/Number of compartment
= 360°/32
= 11.25°
The measure of a central angle in radians will be:
= 2π/Number of compartment
= 2π/32
= π/16 radians
The arc length between two cars or compartments will be:
= π/16 × (394/2)
= π/16 × 197
= 197π/16
= 38.69m
The area of a sector between two cars or compartments will be:
= central angle/360° × π × radius ²
= 11.25/360 × 3.142 × (394/2)²
= 3810.56m²
Learn more about angles on:
brainly.com/question/25716982
#SPJ1
Answer:
the answer is Israel
Explanation:
In the year of 721 BC, Israel was attacked and captured by the Assyrian armies.
the assyrians captured israel because it created a border between egypt and them. They wanted them out of the way so they could attack on Egypt more efficiently.
