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An amount of gas in a well-insulated container is compressed reversibly and adiabatically to half its initial volume. Does the entropy of the gas decrease, increase, or stay the same?
A Pilot ejects from a jet raveling horizontally at 361 m/s. The combined mass of the pilot and their ejection seat is 200 kg. Whats the drag force exerted on the pilot
Two long parallel wires carry currents of 3.77 A and 4.35 A. Find the separation distance of the wires expressed in millimeters.
a 6500-kg satellite is in a circular earth orbit that has a radius of 3.4 x 107 m. a net external force must act on the
An unknown number of moles of an ideal monoatomic gas expand reversibly from Vi = 1.30 m3 to Vf = 2.20 m3, Calculate the work done by the gas
Three point charges, -6.05 10-9 C, -9.40 10-9 C, and +7.25 10-9 C, are fixed at different positions on a circle. What is the radius of the circle
During 0.15 s, a wheel rotates through an angle of 2.74 rad as a point on the periphery of the wheel moves with a constant speed of 2.16 m/s
What is the little distance between the speakers for which the interference of the sound waves is destructive.
A soccer ball with mass 0.446 kg is initially moving with speed 1.40 m/s. Over what distance must the player's foot be in contact with the ball to increase the ball's speed to 6.40 m/s
the virgo cluster contains about 1300 galaxies and is at a distance of 16 mpc. the galaxies have an rms velocity about
A boy whirls a stone in a horizontal circle 1.6m above the ground,by means of a string 1.4m long. The angle between the stringand horizontal plane is 10 degrees. The string breaks, the stone flies horizontally, and strikes the ground 6m away. What..
A hydrogen atom has a radius of about 0.05 nm. (a) Estimate the uncertainty in any component of the momentum of an electron confined to a region of this size. in kg · m/s (b) From your answer to (a), estimate the electron's kinetic energy in three di..
a jetliner is moving at a speed of 197 ms. the vertical component of the planes velocity is 51.4 ms. determine the
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