If the sun suddenly went dark, we would not know it until its light stopped arriving on earth. how long would that be, in seconds, given that the sun is 1.50 × 1011 m away?

500 s

Explanation:

Speed is defined as a relation between the distance and time :

Where:

is the speed of light in vacuum

is the distance between the Earth and Sun

is the time it takes to the light to travel the distance

Isolating :

Finally:

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

i dont know but

explanation:

whoever your teacher is, deserves a raise for using pokemon as an example