Using a telescope and spectrometer on earth, you measure the 121.567 nm transition line of hydrogen gas on either side of the equator of jupiter, which has a diameter of 143 x10 km. on the left edge, you measure 121.164 nm, while on the right edge you measure 121.776 nm. a) is jupiter approaching or receding from the earth? at what speed (line-of-sight speed)? b) what is the rotation speed at jupiter's equator? what is the rotation period of jupiter in days?

a. european colonies

you would travel west

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.