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If engine works between a hot reservoir at 640 K and acold reservoir at 320K.
a. What is the maximum efficiency of the engine?
b. If the engine burns fuel,what are the problems resulting from increasing the hottemperature?
a ball mass m60g is shot with speed vi22ms into the barrel of a spring gum of mass m240g initially a rest on a
A small block of aluminum (of mass 0.08 kg and specific heat 900 J/kg·K) at 365 K is placed in a container of water (of mass 0.125 kg and specific heat 4186 J/kg·K) at 273 K. What is the final temperature of the two bodies
a calculate the absolute pressure at the bottom of a fresh-water lake at a depth of22.9m. assume the density of the
An electron in chromium moves from the n = 2 state to the n = 1 state without emitting a photon. Use the Bohr theory to estimate the kinetic energy of the Auger electron
an infinitely long line of charge has a linear charge density of 6.00times10-12 cm . a proton is at distance 14.0 cm
a simple gaussmeter for measuring horizontal magnetic fields consists of a stiff 58 cm wire that hangs from a
Calculate the velocity of the object for an elapsed time.
A particle with charge of 7.70 microC and v= 435 m/s is acted on by both an electric and magnetic field. what is the strength of the magnetic field
If an organ pipe, 2 ft long and with one end closed and one end open, how long is the second organ pipe
A 3.00 mass on a spring has displacement as a function of time given by the equation. Find the maximum magnitude of force on the mass
Water is drawn from a well in a bucket tied to the end of a rope whose other end wraps around a solid cylinder of mass 50 kg and diameter 25 cm. what is the angular acceleration of the 50-kg cylinder
A spring oscillator is designed with a mass of 0.130 kg. It operates while immersed in a damping fluid, Find the required damping constant for the system
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