a)Assuming that Albertine's mass is 60.0kg , what is
Mass of the albertine =60kg
Compressed length of the string (
Acceleration due to gravity
From the principle of law of conservation of energy,
A force acting on a particle moving in the xy plane is given by
a) Calculate the work done by F along OAC
b) Calculate the work done by F along OBC
c) Calculate the work done by F along OC
d) Is F conservative or nonconservative?
A 17.8 kg flood light in a park is supported at the end of a horizontal beam of negligible mass that is hinged to a pole. A cable connected to the beam helps to support the light. (In thefigure,
(A) 320 N
(B) 250 N
(C) 0
Two blocks with masses 4.00 kg and 8.00 kg are connected by string and slide down a 30.0 degree inclined plane. The coefficient of kinetic friction between the 4.00-kg block and the plane is 0.25; that between the 8.00-kg block and the plane is 0.35.
a) Calculate the acceleration of each block
b) Calculate the tension in the string
c) What happens if the positions of the block are reversed, so that the 4.00-kg block is above the 8.00-kg block?
Solve the following equations:
a.
b.
The unstable nucleus uranium
A. Find the radii of the two "daughter" nuclei of charge
B. In a simple model for the fission process, immediatelyafter the uranium
C. In this model the sum of the kinetic energies of the two"daughter" nuclei is the energy released by the fission of oneuranium