Which "sphere" does an astronomer most directly study?

a. biosphere

b. exosphere

c. geosphere

d. cryosphere E. atmosphere F. hydrosphere

Describe why the speed of light is a "universal speed limit".

What should you do if you see lightning while you are outside exercising? Head inside Stay under a tree Lie in the grass Move quickly

How does magnet polarity affect the current flowing in a loop of wire?

What type of atom os K2CO3?

A force of 1000 Newtons is used to push a box on a flat floor. It accelerated at a rate of 5 m/s2. What is the mass of the wagon?

A building that is 105.50 ft. feet tall is casting a shadow that is 37.50 ft. feet. If the building next to it, is casting a shadow of 41.00 ft. feet, how tall is that building?

What is the technical name for super glue type adhesives

On his fishing trip Justin takes the boat 25 km south. The fish aren't biting so he goes 10 km west. He follows a school of fish 15 km north. What distance did he cover? What was his displacement?

n open rectangular tank is filled to a depth of 2 m with water (density 1000 kg/m3). On top of the water there is a 1 m deep layer of gasoline (density 700 kg/m3). The width of the tank is 1 m (the direction perpendicular to the paper).

Is the sun considered a star?