4. A rope pulling on a block from the right
makes an angle 3 with the horizontal. If
the coefficient of friction between the
surface and the block is , how much
work is done by the tension in the rope
as it moves the block D meters to right
at constant speed? Let m be the mass of
the block and g the acceleration due to
gravity
O
Duong cos B
(usin + cos)
(Digcos)
sin
Duong sin
ucos 8 + sin)
Dmg cos ß sin B

area of focus

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.

it's a b and