Answer:
Guy above is correct on everything!
Explanation:
I know this because I researched and found the answers, but the guy above has all the right answers, so yes, he is correct! Give him a "Thanks"!
It might be c I'm not sure either. Hope I helped
Answer:
B) The lighter gases boiled off of the protoplanets closest to the sun, leaving dust and metals behind to form the inner planets.
Explanation:
Inner planets are smaller and rockier than outer gas planets,outer planets are larger,because of their lower gravity they don't attract extreme amounts of gas in their planets.The four outer planets were so far from the Sun that its winds could not blow away their ice and gases
Answer:
By 1000 joules
Explanation:
Given
Required
By how much does her GPA increases
To do this, we simply calculate the potential energy.
Where
At the ground level, the height is 0
i.e. 
So:
At:
So, we have:
Calculate the difference
<em>Hence, it increases by 1000 joules</em>
Answer:
Explanation:
b) Gravity reduces the initial upward velocity to zero in a time of
t = v/g = 40/10 = 4 s
a) h = v₀t + ½gt² = 40(4) + ½(-10)4² = 80 m
or
v² = u² + 2as
h = (0² - 40²) / 2(-10) = 80 m
