A plane mirror doesn't change the apparent size or shape of things.
-- If the meter stick is held parallel to the mirror, or is lying on the mirror,
then its image in the mirror is 1 meter long.
-- If the meter stick is held perpendicular to the mirror, or is standing on
the mirror, or pointing directly at it, then its image in the mirror has no length.
Magnetism is one aspect of the combined electromagnetic force. It refers to physical phenomena arising from the force caused by magnets, objects that produce fields that attract or repel other objects
FBD provides a visual for every force that the object experiences. It can tell you the direction by showing the direction and magnitude of the forces. You can calculate the net force, example being that the applied force is 300N and the force of friction is 100N, the net force is 200N in the direction of the applied force. (Fnet= Fa- Ff).
Density = (mass) / (volume)
Mass = 0.150 kg = 150 grams
Volume = (length) · (width) · (height)
Volume = (2.5 cm) · (4.3 cm) · (1.98 cm)
Volume = 21.285 cm³
Density = (150 g) / (21.285 cm³)
Density = 7.05 g/cm³
Answer:
number of coulombs = 1.28 × 
option b is correct
Explanation:
Given data
area A = 4cm
rate of hole r = 1000 cm/s
length L = 2mm
to find out
number of coulombs
solution
we will apply here number of coulombs formula that is
number of coulombs = e×A×L× r
put here value e = 1.6 × 
coulombs
and A = 4 × 
mand length = 2 × 
m
number of coulombs = 1.6 × × 4 × × 2 × × 1000
number of coulombs = 1.28 ×
so option b is correct
