Answer:
15.9 m
Explanation:
Use the equation for gravitational potential energy (Ug):
Ug= mass*g*height
250,000 J= 1600 kg*9.8 m/s^2*height
height= 15.9 m
Hope this helps!!! :)
Answer:
Effect of gravity is equal on both solids and liquids.
Explanation:
gravity is independent of the state of matter.
I think the answer is:
B) oceanic crust-continental crust
Answer:
huh?
Explanation:
I'm so sorry but, i don't get it
Mechanical energy E = mgh + 1/2mv²
When he starts, let h = 0 ⇒ E₁ = 1/2mv₁²
When he reaches height h ⇒ E₂ = mgh + 1/2mv₂²
Without friction, energy is conserved at all times.
E₁ = E₂
↓
1/2mv₁² = mgh + 1/2mv₂²
↓
1/2v₁² = gh + 1/2v₂²
↓
gh = 1/2(v₁² - v₂²)
↓
h = (v₁² - v₂²) / (2g)