A net force acting on an object causes the object to accelerate.
That much is totally true.
The direction of the acceleration is the direction of the net force.
Well we can't see the picture that the teacher has, and we have to figure out what's in the picture from some clues in the answer choices. The picture seems to show an atom with 3 protons and 3 neutrons in the nucleus, and 3 electrons whizzing around the nucleus.
If that's what's in the picture, then Mike is correct (first choice), because the atomic number shows the number of protons in all atoms. There are 3 protons and the atomic number of lithium is 3.
Second choice . . . False, because electrons are not involved in the atomic mass.
Third and fourth choices . . . both false; sadly, Joan is woefully unclear on the concepts.
Answer:
T = 5516.63 seconds
Explanation:
Given that,
The International Space Station is orbiting at an altitude of about 370 km above the earth's surface.
Mass of the Earth,
Radius of Earth,
We need to find the period of the International Space Station's orbit. It is a case of Kepler's third law. Its mathematical form is given by :
R = r + h
So, the period of the International Space Station's orbit is 5516.63 seconds.