Answer:
The Corona.
Explanation:
The Corona is the outermost part of the Sun. Usually, it is nto visible due to the light emitted by the Sun. During a total solar eclipse, that is the moon comes between the Earth and the Sun, the glowing white edge around the eclipse is the Corona.
Answer:

Explanation:
Newton's law of universal gravitation states that the force experimented by a satellite of mass m orbiting Mars, which has mass
at a distance r will be:

where
is the gravitational constant.
This force is the centripetal force the satellite experiments, so we can write:

Putting all together:

which means:
![r=\sqrt[3]{\frac{GM}{4\pi^2}T^2}](https://tex.z-dn.net/?f=r%3D%5Csqrt%5B3%5D%7B%5Cfrac%7BGM%7D%7B4%5Cpi%5E2%7DT%5E2%7D)
Which for our values is:
![r=\sqrt[3]{\frac{(6.67\times10^{-11}Nm^2/kg^2)(6.39\times10^{23} kg)}{4\pi^2}(1.026\times24\times60\times60s)^2}=20395282m=20395.3km](https://tex.z-dn.net/?f=r%3D%5Csqrt%5B3%5D%7B%5Cfrac%7B%286.67%5Ctimes10%5E%7B-11%7DNm%5E2%2Fkg%5E2%29%286.39%5Ctimes10%5E%7B23%7D%20kg%29%7D%7B4%5Cpi%5E2%7D%281.026%5Ctimes24%5Ctimes60%5Ctimes60s%29%5E2%7D%3D20395282m%3D20395.3km)
Since this distance is measured from the center of Mars, to have the height above the Martian surface we need to substract the radius of Mars R=3389.5 km
, which leaves us with:

Answer:
(c)Tension = 162 N
(d) Increase
Explanation:
(c)
In order for the cable to lift the plate at uniform velocity, the tension in the cable must be equal to the weight of the plate.

<u>Tension = 162 N</u>
(d)
The tension with upward acceleration will become:

<u>Hence, the tension will increase by an amount equal to "ma".</u>
It is called dew which is when water condenses onto the grass in the early morning.