Answer:
Explanation:
A light year is a unit of length and is defined as "the distance a photon would travel in vacuum during a Julian year at the speed of light at an infinite distance from any gravitational field or magnetic field. "
In other words: It is the distance that the light travels in a year.
This unit is equivalent to
, which mathematically is expressed as:

Doing the conversion:
This is the distance from Earth to Sirius in miles.
Answer:
A, The water moving away
Explanation:
When the pebble hits the water the surface tension breaks causing the water to separate away and make a ripple in the water.
Answer:
A
Explanation:
Straight line with a negative slope
On a velocity_time graph
The first one is electrical energy