Answer:
The reflection and rectilinear propagation of light helps in the formation of shadows and also tells light doesn't penetrate opaque materials.
Speed=Distance/Time
Distance=40m,time=5.79seconds
S=40/5.79
=6.908m/s
A group of individuals living in a particular geographic area is termed population.
Answer: B
Explanation:
An unbalanced force (net force) acting on an object changes its speed and/or direction of motion. An unbalanced force is an unopposed force that causes a change in motion.
75 percent (calculated percentage %) of what number equals 27? Answer: 36.