Force and pressure 2. Pressure and upthrust
D. Solve the following numerical problems.
1. In the given hydraulic press the cross
sectional area of cylinder A, and Az are
0.25m and 8m respectively, what magnitude
of effort is to be applied on cylinder A, to
balance a load of 1000N on the cylinder Ai?

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

Atruck with 34-in.-diameter wheels is traveling at 55 mi/h. find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes:

What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%