Does that help I hope IT does you probably just have to write the 1st sentence.
Translation
A 100kg roller coaster reaches the first hill at 2m / s. the height of the first hill is 20 meters. *Find the total energy* Question added
Answer:
19820 J
Explanation:
Total energy is the sum of kinetic and potential energy
Potential energy is given by mgh
Kinetic energy is given by
The combination will then be and substituting m for 100 Kg and 2 m/s for v then taking g as 9.81 while h is given as 20 m we obtain energy as
Answer:
B. speed up
Explanation:
The acceleration of an object due to a body's gravity is:
g = GM / r²
where G is the universal constant of gravitation,
M is the mass of the body,
and r is the distance from the body.
As a planet approaches the sun, r decreases. As r decreases, g increases.
An electric conductor is an element with free electrons in its outer orbit