Asample of a white powder is given to you to identify. you can use the benedict test, the lugol test, the biuret test, and the sudan red test to identify it. answer the questions to report on your analysis plan.

Benedict's will test for simple sugars: glucose, sucrose, fructose, lactose, etc. Lugol's iodine will test for complex carbs (starches): cellulose, glycogen, etc. Biuret's will test for protein, and Sudan Red will test for lipids: fats, oils

Answer body lying face up ;

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