Which is capable of housing astronauts while they conduct research? a rover a satellite a space station a space observatory

A Space Station

Explanation:

A space station is also a satellite but bigger in size and facilities which makes it possible for the astronauts to live inside it and conduct research. The rover, satellites, and space observatory neither have room for the astronauts nor they are designed for that purpose.  International Space Station is an example of Space Station.

a space station

Explanation:

I took the test

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6