Answer:
Space junk, or space debris, is any piece of machinery or debris left by humans in space. It can refer to big objects such as dead satellites that have failed or been left in orbit at the end of their mission. It can also refer to smaller things, like bits of debris or paint flecks that have fallen off a rocket.
The acceleration due to gravity on a large body is given by:
acceleration = (gravitational constant * mass of body) / radius²
For b, this is:
g = GM/r²
M = gr²/G
For a,
g(a) = 1/6 g
r(a) = 1/4 r
M(a) = g(a)r(a)²/G
M(a) = 1/6 g * (1/4 r)²/G
M(a) = gr²/96G
The fraction is given as:
M(a) / M = (gr²/96G) / (gr²/G)
M(a) / M = 1/96
The mass of planet a is 1/96 of the mass of planet b.
Answer:
I believe cells do have different types of openings. I think this way because unlike doors cells can open up to different types of organs in your body like your heart, liver, and lungs.
Answer:
Electromagnetic; thermal
Explanation:
The energy of the sun is transferred directly to this type of panels, to produce water heating.
This type of panels are different from the photo voltaic, which convert solar energy to electric.
It depends on what your reference point is...if want the distance perpendicular to the starting point in the plane, that's double the time (as only one motor is working perpendicular to the starting plane - 49.6), but if you are considering the whole distance (the diagonal distance), then, the probe would travel the same distance in @24.8*sqrt(2).