Retracting cylinder - FOR OTA 103642

A 2" diameter hydraulic ram piston supports an elevator in a 2 story building. When the elevator car is at the first floor, the piston is fully retracted into the cylinder. The piston extends 15 feet to place the empty car at the second floor. Eight passengers who each weigh exactly 150 lb. enter the car. If the bulk modulus of the hydraulic fluid is 250,000 psi, how far does the the elevator settle as the passengers enter? FOR OTA 103642

Air compression

Air is used at a rate of 30 cfm from a receiver at 102 degress Farenheit and 155 psi. If the atmospheric conditions are 14.7 psia and 75 degrees farenheit, how many cfm of free air must the compressor provide? NOTE: Moved to Physics by BrainMass Admin.

Cylinder design

Design a cylinder to compress 68 degree farenheit air from atmospheric pressure to 200 psig without increasing the temperature more than 25 degrees farenheit. Show cylinder dimensions and discuss how far the piston must travel. *An autocad file would be preferable when designing and labeling the cylinder.

Kinetic Energy and Work

1. A luge and its rider, with a total mass of 85 kg emerges from a downhill track onto a horizontal straight track with an initial speed of 37 m/s. If they stop at a constant deceleration of 2.0 m/s^2, (a) What magnitude F is required for the deceleration force, (b) what distance "d" do they travel while decelerating (c) what work "W" is done on them by the decelerating force are (d) "F", (e) "d", and (f) "W" for deceleration of 4.0 m/s^2 ? 2. The only force acting on a 2.0 kg canister that is moving an xy plane has a magnitude of 5.0 N. The canister initially has a velocity of 4.0 m/s in the positive x direction and some time later has a velocity of 6.0 m/s in the positive y direction How... click for more

Net force 2

The sensor in the torso of a crash-test dummy records the magnitude of the net external force acting on it. If the dummy is thrown forward with a force of 130.0 N while simultaneously being hit from the side with a force of 4500.0 N, what force will the sensor report? I would like the formula used to solve this problem and a detailed description on how you solved it. I am really lost on how to do any of it. Thanks!