The shape of the resulting cross section of the hexagonal pyramid in the diagram given is: a hexagon.
<h3>What is Hexagonal Pyramid?</h3>
A hexagonal pyramid is a pyramid with six lateral faces and an hexagonal base.
In the diagram, the plane cuts each of the lateral faces of the pyramid, giving a resultant shape that has 6 sides and angles, which is a hexagon.
Thus, the cross section shape is: a hexagon.
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<span>gravitational potential energy : P
Gravity : g
Mass : m
height : h
P = mgh = 3 x 9.8 x 0.45 = 13.23 Joule
Potential energy is work , from the known formula
W = Fd ( work = force x distance )
W = P ( in case of potential energy height change)
F is the force acting on the body in case of ideal ramp , the only force acting is the weight of the body
F = mg ( not just <m> as the force is mg (Newton) gravity effect)
d is the displacement in direction of force, as we have considered the force to be the weight not it's component in direction of the ramp , the change in displacement is the change in height so
d = h
W = Fd = (F = mg) x (d = h) = mgh
W = mgh = P
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I am mostly sure it's b. Good luck! :3
50.8 centimeters is equal to 20 inches.
