A theromometer is the increase or decrease of earths atmospheric temperture, thats how you would measure the temperture of the air around you.
Weight equals mass times gravitational acceleration=400N, so mass=400/9.8=41kg approx.
Planetary Nebula are the outer layers of a star that are lost when the star changes from a red giant to a white dwarf. A star is a luminous globe of gas producing its own heat and light by nuclear reactions (nuclear fusion). They are born from nebulae and consist mostly of hydrogen and helium gas.
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sorry I don't know but I hope you get a answer soon
That's true.
And I'll go ya a better one:
If the object is moving or not moving, at a constant or changing speed, in a straight or curvy line, and the forces on it do not cancel out and add up to zero, the object will accelerate.