What is the mass pf the planet (times the sine of the inclination of its orbit), mp sin i, in units of kg? (Note : you will need to use the answers to the previous two questions along with the relationship given next to the Doppler Wobble plot above.)

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87