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An automobile's battery is connected to an electric motor that is used to move up a load. The battery stays at a constant temperature, receiving heat from the air that surroundings it. Is this a violation to the Second Law of thermodynamics? Explain.
if you have two 10 microfarad capacitors in series with each other what is the equivalent capacitance of the
charge 1 of 3.24 micro-coulombs is placed at the origin. charge 2 of 3.74 micro-coulombs is placed is x -12.9 cm and y
a baseball just clears a 3.20-m wall that is 113 m from home plate. if the ball leaves the bat at 35.0deg and 1.20 m
The work function for cesium, 1.81 eV, is much lower than the work function for other metals. What is the maximum electron kinetic energy when cesium is illuminated with light of 512-nm wavelength
A particle of mass m moving along the x-axis collides elastically with another particle of identical mass at rest in the lab frame and scatters. Its final momentum makes an angle theta with the x-axis in the lab. If its initial kinetic energy is K_0,..
Moon effect. Some people believe that the Moon controls their activities. If the Moon moves from being directly on the opposite side of Earth from you to being directly overhead, by what percentage does (a) the Moon's gravitational pull on you increa..
Two electrodes are placed in a calcium chloride solution and a potential difference is maintained between them. what is the current in the solution
An electron is observed traveling at a speed of 2.38 107 m/s parallel to an electric field of magnitude 11,460 N/C. How far will the electron travel before coming to a stop
what would be the restoring force on the pendulum at an angle of 6.24deg from the equilibrium
a 1000-kg car is picking up speed as it goes around a horizontal curve whose radius is 100 m. the coefficient of static
At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 1.8 m/s2. How fast will the automobile be traveling at that instant
The toadfish makes use of resonance in a closed tube to produce very loud sounds. The tube is its swim bladder, used as an amplifier. The sound level of this creature has been measured as high as 100 dB. (a) Calculate the intensity of the sound wave ..
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