Answer:
Height of mirror will be 1 m for complete image of person
Explanation:
We have given distance of person from plane mirror d = 2 m
And height of person = 2 m
We have to find the height of plane mirror which given full image of person
Height of mirror will be equal to half of height of person
So height of mirror 
So height of mirror will be 1 m for complete image of person
Answer
The Net force acting on an object is the combination ofall of the individual forces acting on it.
Explanation:
∆x=300 m×2
∆t=1.5 s
v=∆x/∆t → v=2×300/1.5 = 400 m/s
Answer:
Molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. Molecules must collide with the proper orientation.
Explanation:
A collision that meets these two criteria, and that results in a chemical reaction, is known as a successful collision or an effective collision.