Answer:
Explanation:
Given
Charge per unit area on each plate()=
Plate separation(y)=0.013 m
and velocity is given by
where a=acceleration is given by
e=charge on electron
E=electric field
m=mass of electron
substituting values
Answer:
A person writing on the pages
The temperature of both the halves of the body remain same and thus the body remain in thermal equilibrium.
Both the parts of the body even after being in contact with each other will not transfer heat and thus maintain equal temperature and the resultant of the two will be zero.
Sigmund Freud would say he's employing a defense mechanism called displacement. It is an oblivious barrier component whereby the mind substitutes either another point or another question for objectives felt in their unique shape to be unsafe or inadmissible. The dislodging works in the psyche unknowingly, its transference of feelings, thoughts, or wishes being regularly used to alleviate uneasiness even with forceful or sexual motivations.
Answer:
Explanation:
At height h , potential energy of coaster car having mass m = mgh .
The car will lose potential energy and gain kinetic energy.
height lost by car when it is at the top of loop of radius R
= h - 2R
potential energy lost = mg ( h - 2R )
kinetic energy gained = mg ( h - 2R )
kinetic energy = 0 + mg ( h - 2R )
= mg ( h - 2R )
b )
For the car to remain in contact with the track , if v be the minimum velocity
centripetal force at top = mg
m v² / R = mg
v² = gR
kinetic energy = 1/2 mv²
= 1/2 m x gR
= mgR /
If h be the minimum height that can give this kinetic energy
mg ( h - 2R ) = mgR / 2
h - 2R = R / 2
h = 2.5 R .