Answer:
At the maximum height of the vault
Explanation:
The formula for gravitational energy (GPE) is
GPE = mgh, where
m = the pole vaulter's mass
g = the acceleration due to gravity
h = the height above the ground
Since m and g are constant,
GPE ∝ h
The point of highest GPE is at the maximum height of the vault, just before he starts falling towards the ground.
Answer:
I know that Aerogel is the lightest metal in existence, but I don't think it would help much with your answer. I mean you can give it a try?
Given that there is 4.0 g of He, 6.5 g of Ar, and 10.0 g of Ne :
So, first all these masses are converted into moles:
Total Number of moles = 1 + 0.1627 + 0.4955 = 1.658 mol
= 
Answer:
Yes
Explanation:
Scientists using the latest microscopic technology have found they can move individual atoms around a surface at will, a breakthrough that could have profound implications in the ultra-small world of electronics and even in industry
<span>Answer
is: </span>the objects mechanical energy is 52,92 J.<span>
m(object) = 0,3 kg.
h(object) = 18 m.
g = 9,8 m/s².
E(object) = m·g·h.
E(object) = 0,3 kg · 9,8 m/s² · 18 m.
E(object) = 52,92 N·m = 52,92 J..
g - the acceleration of free fall.
mg - weight of the object.</span>
