Answer:
Sharing of information
Explanation:
The development of SI unit has helped in the sharing of scientific as well as techical information internationally.
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In the given statement: "<span>Since monsoons are storms that usually occur during a specific time of year in certain regions, you could not compare them to thunderstorms. </span>" is false. Therefore, among the given choices, the correct answer is B. False.
Answer:
Gravity
Explanation:
Mass and motion are not forces and newton is unit of force. Gravity is defined as force of attraction or repulsion between two bodies and hence is the answer.
Answer: Satellite X has a greater period and a slower tangential speed than Satellite Y
Explanation:
According to Kepler’s Third Law of Planetary motion “The square of the orbital period of a planet is proportional to the cube of the semi-major axis (size) of its orbit”.
(1)
Where;
is the Gravitational Constant
is the mass of the Earth
is the semimajor axis of the orbit each satellite describes around Earth (assuming it is a circular orbit, the semimajor axis is equal to the radius of the orbit)
So for satellite X, the orbital period
is:
(2)
Where ![r_{X}=1.2(10)^{6}m](https://tex.z-dn.net/?f=r_%7BX%7D%3D1.2%2810%29%5E%7B6%7Dm)
(3)
(4)
For satellite Y, the orbital period
is:
(5)
Where ![r_{Y}=1.9(10)^{5}m](https://tex.z-dn.net/?f=r_%7BY%7D%3D1.9%2810%29%5E%7B5%7Dm)
(6)
(7)
This means ![T_{X}>T_{Y}](https://tex.z-dn.net/?f=T_%7BX%7D%3ET_%7BY%7D)
Now let's calculate the tangential speed for both satellites:
<u>For Satellite X:</u>
(8)
(9)
<u>For Satellite Y:</u>
(10)
(11)
This means ![V_{Y}>V_{X}](https://tex.z-dn.net/?f=V_%7BY%7D%3EV_%7BX%7D)
Therefore:
Satellite X has a greater period and a slower tangential speed than Satellite Y