Three rocks are rolling down a hill at the same speed. Rock 1 has a mass of 1 kg, rock 2 has a mass of 1.5 kg, and rock 3 has a mass of 3 kg. Which rock has the most kinetic energy?
1
2
rock 1
O rock 2
rock 3
all three rocks have the same kinetic energy

rock 3

Explanation:

Rock 3 has the greatest kinetic energy because it has the most mass.

Kinetic energy is the energy due to the motion of a body.

  Given mass:

      Rock 1 = 1kg

      Rock 2 = 1.5kg

      Rock 3 = 3kg

Now, to calculate kinetic energy;

  K.E  = m v²

where m is the mass

           v is the velocity

As we can see, kinetic energy is directly proportional to mass.

The higher the mass, the higher the kinetic energy.

there's multiple reasons why the conquistadors were so successful in colonizing central america, and some of them are:

- they were seen as gods;

at the beginning, the spanish settlers were seen by the natives as gods, and this was mainly due to their white skin, and the way they came with their boats.

- possessed superior weaponry;

the spanish had gunpowder and guns, as well as cannons, while the natives did not had any fire weapons.

- made cleaver alliances;

they used the situation of tribes hating each other, so they made alliances with some of them which served them very well.

- brought diseases;

the native people were not immune to certain diseases the europeans brought with them, so they were dying from seeming harmless things for european standards.