Answer:
Explanation:
The electron has a negative charge. Proton is positive and neutron is neutral.
Answer:
B.Less than
Explanation:
We are given that
Mass of each object=m
Length of rod=r
=Moment of inertia of the dumbbell shaped object with respect to an axis passing through the center of the rod and perpendicular to it.
=Moment of inertia with respect to an axis passing through one of the masses.




Hence,
is less than 
B.Less than
Answer:
m = 0.25
Explanation:
Given that,
Object distance, u = -15cm
Height of the object, h = 48
Focal length, f = cm
We need to find the magnification of the image.
Let v is the image distance. Using mirror's equation.

Magnification,

Hence, the magnification of the image is 0.25.
I only doing this for points, but i think its c
Answer:
The force is
Explanation:
From the question we are told that
The volume of blood ejected is 
The velocity of the ejected blood is 
The mass density of blood is 
The heart rate is 
Generally the average force exerted is mathematically represented as

=> 
=>