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Helium gas fills in a well-insulated cylinder fitted with a piston at 295K and 1 atm. The piston is moved very slowly (adiabatic expansion) so that the volume increases to four times its original volume. What are the final pressure and temperature of the gases.
a cellular telephone tower that is 150 feet tall is placed on top of a mountain that is 1200 feet above the sea level.
A grandfather clock has a brass pendulum with a period of 1 sec at 20C. in the summer, the temperature of your house rise by 5 C. By how much does the period of the pendulum change
In a television tube, electrons travel down the tube and strike the fluorescent material at the end of the tube. What is the acceleration of an electron during this process
A bat flying in complete darkness emits high frequency sound of 100 kHz to locate objects. What is the frequency in which the bat is received
A motion cart is nudged from the top of a 53° frictionless inclined plane that has one end propped up at a vertical height of 0.08 m. What is the final velocity of the cart
A Boeing 747 jet with a wingspan of 60.0 m is flying horizontally at a speed of 324 m/s over Phoenix, What voltage is generated between the wingtips
Use the free electron model to estimate the gap parameter ?0 and the transition temperature Tc for (a) aluminum (1.81 x 10^29 electrons/m3 ) and (b) zinc (1.31 x 10^29 electrons/m3 ).
Eddie the Eagle, British Olympic ski jumper, is attempting his most mediocre jump yet. What was the magnitude of Eddie's initial velocity as he left the ramp
The best leaper in the animal kingdom is the puma, With what speed must the animal leave the ground to reach that height
At time t=0s, a wheel has an angular displacement of zero radians and an angular velocity of (+28) rad/s. Calculate the average angular velocity in the interval from t=0 to t=20
A guitar string is 93 cm long and has a mass of 3.6 g. The distance from the bridge to the support post is L = 60 cm, What is the frequency of the second overtone
A 950-kg race car can drive around an unbanked turn at a maximum speed of 41 m/s without slipping. What would be the maximum speed if no downforce acted on the car
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