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:
In order to incorporate scientific evidence, the cognitive perspective also employs the <span>psychoanalytic </span>perspective.
I believe the correct answer is false. <span>The parts of a mixture do not keep their own properties when they are combined. When they are combined, they exhibit or behave with different properties since each atom is bonded which gives them unique properties. Hope this helps.</span>
A) 2.2 J
Explanation:
The problem can be solved by using conservation of energy. In fact, the initial elastic potential energy stored in the rubber band is entirely converted into gravitational potential energy of the pebble. We can write therefore the equation:
where
U is the potential energy initially stored in the rubber band
m = 10 g = 0.01 kg is the mass of the pebble
g = 9.8 m/s^2 is the acceleration due to gravity
h = 22.0 m is the maximum height reached by the pebble
Substituting the numbers into the formula, we find:
B) 9.0 m
Explanation:
Now we know the potential energy stored in the rubber band initially, U=2.2 J. We also know that this time, the mass of the pebble is m = 25.0 g = 0.025 kg. So we can use again the same equation:
and re-arranging it to find h, the maximum height reached by this new pebble. We find:
Answer:
trachea
Explanation:
The trachea is one part of the respiratory tree that is a conduit for air to pass through on its way to or from the alveoli of the lungs. This transmits oxygen to the body and removes carbon dioxide.
