Answer:
geothermal energy
Explanation:
the energy is obtained from the heat within the surface of earth
Speed = distance / time
S= 40 000m / 5400s
S= 7.41m/s
It should be 3.39 when u multiply 2.26 from 1.5 it gone give u 3.39 it be better if u learn the triangle
Answer:
The speed of the box at the top of the hill will be 5.693m/s.
Explanation:
The kinetic energy of the box at the bottom of the hill is
putting in and we get
Now, the potential energy this box gains as it rises up the hill is
Therefore, the energy left in the box at the top if the hill will be
This left-over energy must appear as the kinetic energy of the box at the top of the hill<em> (where else could it go? )</em>; therefore,
putting in numbers and solving for we get:
Thus, the speed of the box at the top of the hill is 5.693m/s.