Answer:
The atomic weight of an atom is the sum of its protons and neutrons
Explanation:
The weight of an atom is dominated by the amount of matter contained in the dense and tiny nucleus of an atom. In the nucleus, protons and neutrons are found. Protons are massive nuclear particles that are positively charge. Neutrons are also massive and they carry no charges.
The atomic weight is given as the sum of the protons and neutrons. Electrons have little to no weight.
Answer:
The presence of strong magnetic fields results in the slow convection and also prevents the movement of hot plasma from entering the region
Explanation:
The photosphere refers to the visible surface of the sun, whereas the sunspots are the small dark spots that occur on the surface of the sun. These sunspots are comparatively cooler than the other gases that are present in the photosphere. It is because of the presence of the strong magnetic field, that lowers the surface temperature and reduces the effects of convection process and does not allow the movement of hot plasma into the region.
Due to this obstruction in the release of heat in the sun's surface, the sunspots are cooler than the surrounding gases.
Answer:
(a) Mean yearly temperature = 10.58
(b) 
Explanation:
Given:
The attached chart
Solving (a): The mean yearly temperature.
This is calculated as:
Solving (b): The mean July temperature.
From the chart:
Answer:
0.37s to 2d.p
Explanation:
period T = no of oscillation/time taken
- no of oscillation is 59
- time taken=2×60+40= 120s + 40s=160s
T=59/160
T=0.37 to 2d.p
Salutations!
Describe the difference between revolution and a rotation, explain why each is important.
Revolution - Revolution is when the Earth revolves around the sun. This process takes 365 days/ 1 year.
Rotation - Rotation and revolution are both different. Rotation is when Earth is spinning on its own axis and also revolving around the sun. Rotation gives us day and night.
Why are they important?
Rotations gives us day and night which is 24 hours. Revolution gives us season. Earth's spins controls our live. We sleep at night and are awake in the days. Both of the spins are very vital to us.
Hope I helped (:
Have a great day!
