Answer:
Kepler's first law suggests that the orbit of planets is not circular but elliptical
Explanation:
The three Kepler's laws explain the motion of the planets orbiting the Sun:
- The first law tells that the orbits of the planets around the Sun are ellipses, with the Sun located at one of the two focii
- The second law tells that a line connecting the Sun with the planet sweeps out equal areas in equal amounts of time
- The third law tells that the square of the orbital periods of the planets is proportional to the cube of their average distance from the Sun
As we can read, the first law tells us that the orbit of the planets is not circular, but elliptical.
c. gravitational potential energy
b. chemical potential energy
d. electrical energy
Gravitational potential energy is a form of mechanical energy.
Gravitational potential energy is the energy possessed or acquired by an object due to a change in its position when it is present in a gravitational field.
If an object is at rest and doesn't involve elastic energy, then mechanicalenergy can be equal to gravitational potential energy.
To learn more about Gravitational potential energy here
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Answer:
If sound waves of the same energy were passed through a block of wood and a block of steel, which is more dense than the wood, the molecules of the steel would vibrate at a slower rate. Sound moves faster through denser air because the molecules are closer together in dense air and sound can be more easily passed on.
Explanation:
B. Rapidly spinning proto-galactic clouds
C. Colliding/merging proto-galactic clouds
D. Rapidly cooling proto-galactic clouds
Answer:
B. Rapidly spinning proto-galactic clouds
Explanation:
Many expressed opposition through protest marches.
Many sent supplies to the South Vietnamese.
Answer:
Many expressed opposition through protest marches.
is the answerd.