Answer:
Your correct answer is option C. Displacement is equal to the total distance traveled by an object in motion.
Explanation:
This is something that is definitely not a displacement.
Answer:
Explanation:
Given
mass of lead piece 
mass of water in calorimeter 
Initial temperature of water 
Initial temperature of lead piece 
we know heat capacity of lead and water are
and
respectively
Let us take
be the final temperature of the system
Conserving energy
heat lost by lead=heat gained by water





D.What is the best angle to throw a ball for maximum distance? Because this is the only question in above all of them which has some scientific investigation like angle that is use in many of the physics relations.
Answer:
A and D
Explanation:
Acceleration is the active change in speed, increasing or decreasing.
Answer:
Explanation:
Low density is an area of rarefaction.