y = 2x - x2 y = 0, rotated about the line x = 2 x = 4y - y2 - 3, x = 0. rotated
ID: 3343684 • Letter: Y
Question
y = 2x - x2 y = 0, rotated about the line x = 2 x = 4y - y2 - 3, x = 0. rotated about the y-axis A spring of natural length 10.0 centimeter will it stretch to 14 0 centimeters w hen a weight of 12 0 Newtons is attached to it. Calculate the spring constant You may express your answer either in Newtons per meter or Newtons per centimeters as you prefer How much work is required to stretch the spring from its natural length of 10 0 centimeters to a length of 15.0 centimeters? Express your answer in Joules. Consider a floodgate in the shape of a square, 2.00 meters on a side The floodgate is completely submerged in water , and the upper edge of the floodgate is 4.00 meters below the surface of the water. Determine the total force acting on the floodgate Express your answer in Newtons or in KiloNewtons. Consider a tank in the shape of a right circular cylinder. The tank is 1.00 meter in radius, and has a height of 3.00 meters The tank is initially full of water, whose density is 1, 000 kilograms per cubic meter. Calculate the work needed to pump all of the water out from the top of the tank. Express your answer in Joules.Explanation / Answer
initial potential energy
Ui = mgh/2
= d*V*h/2
=( d*pi*r^2 * h^2)/2
= 14137.17 J
Uf= mgh*h
= 2*Ui
so
W = Uf-Ui
= 2Ui-Ui
= Ui
= 14137.17 Joules
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.