The force required to compress the gas in a gas spring a distance x is given by where the constant is determined by the geometry of this device and k is determined by the gas used in the device. One such device has a constant of 200 lbf·in1.4 and k = 1.4. Determine the work, in Btu, required to compress this device from 2 in to 7 in.

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?

The chart shows daniela’s run through her race. what is her velocity? 1.5 m/s 2 m/s 2.5 m/s 5 m/s