A meter stick is balanced on a fulcrum (pivot) and two blocks are hanging off of it. The block with a weight of 10 N is hanging 25 cm to the left of the fulcrum. The other
block, of unknown weight, is hanging 50 cm from the fulcrum. The system is in
equilibrium.
a. Draw a free body diagram of the system.
b. How much torque is the 10 N block creating?
c. How much torque is the other block creating?
d. What is the weight, in Newtons, of the second block?

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?

The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus