Answer:
It's because it tips over the threshold from nucleate boiling, which we can see, to convection boiling, which we can't. ... Even if the steam stayed in the pot, it would still stop boiling when you removed the heat. The steam and water in a liquid/vapour mixture are at the same temperature (100ºC).
Explanation:
Answer:
According to the NEBULAR model, the solar system formed from a cloud of dust and gas.
Explanation:
According to Nebular model, the solar system was formed from molecular cloud of dust and gases. The material accreted and collapsed under its own weight. The rotating core gathered more mass increasing its temperature and pressure until nuclear fusion reaction started and Sun was born. The rest of the material flattened into disk from which planets were formed.
Answer:
Ethel is correct because energy is not carried from one place to another.
It is a transverse wave.
Explanation:
During the propagation of waves from one point or place to another, energy is being transferred. Thus, when one's hand is being waved, there is no transfer of energy from one point to another. Therefore, Ethel is right while Brody is wrong.
A transverse wave is known as a type of wave that the direction of propagation is perpendicular to the vibration of the medium. Therefore, the wave is a transverse wave.
a. True
b. False
Answer: True.
Kepler was an astronomer, astrologer and mathematician. He was an apprentice of Tycho Brahe, other big (maybe the biggest) astronomer of their time.
Kepler is best known for his 3 laws of planetary motion.
1) the orbit of a planet is an ellipse with the Sun at one of the two foci
2) A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time
3) The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.
B. Alfred Wegener
C. Charles Richter
D. Abraham Ortelius
Answer:
Satellites are placed into orbit at least 150km above Earth's surface to ensure that they remain above the atmosphere.
The velocity required to keep a balance between the inertia of the motion of the satellite and the earth's gravitational pull, which is called the orbital velocity, essentially depends on its distance above the surface of the Earth. The higher this distance, the longer the satellite will stay in the orbit. Otherwise it might run into the atmosphere and could get burnt up there.