Answer:1265 N
Explanation:
Given
acceleration of motorcycle 
Velocity 
Air friction and Friction
mass of the motorcycle with rider
Applying Forces on motorcycle




Choices 'B'; and 'D' both begin with the correct words.
But they should end with the equation
R = V / I
Answer:
never lol
studying is your work
but why all are doing I don't know=_=
According to Newton's 3rd law of motion, every action has an equal and opposite reaction.
So Wall must apply a force of 50 Newton but in opposite direction.
Hope you got it :-D
Answer : (B) Prominence
Explanation :
A large, glittering and gaseous characteristic which is extending outward from the surface of the sun is called <em>Prominence</em>.
<em>Photosphere</em> is one of the layer of sun where the prominence are anchored and then they move into the corona of the sun.
<em>Corona</em> is a region in the surface of the sun which is the constituent of hot ionized gases (plasma).
The prominence consists of colder plasma and this prominence plasma is much more shining and denser as compared to coronal plasma.
Hence, the correct option is (B) Prominence.