Upstream speed = S - 1
Downstream speed = S + 1
Average speed = total distance / total time
Average speed = (S - 1) + (S + 1) / 2
= S
S = 6 miles / 4 hours
S = 1.5 miles per hour
Explanation:
Newton's second law, which states that the force F acting on a body is equal to the mass m of the body multiplied by the acceleration a of its centre of mass, F = ma, is the basic equation of motion in classical mechanics.
Biomass fuel is produced from organic materials. Therefore, B and D apply. This fuel can be created from fertilizer, crops, lumber, etc.
Answer:
go to this website
Explanation:
https://solarsystem.nasa.gov/asteroids-comets-and-meteors/overview/
