Planet Solar is the world's largest solar-powered boat. The solar panels on its deck contain silicon, which is a metalloid. List at least
four properties of silicon and other metalloids.

HEL PL

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j

Density always stays the same no matter how much of the substance is present. density also expresses the proportional relationship between mass and volume of the substance.