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A 5100 kg open train car is rolling on frictionless rails at 26 m/s when it starts pouring rain. Rain falls vertically. A few minutes later, the car's speed is 24 m/s.
question a weather balloon is designed to expand to a maximum radius of17m at its working altitude where the air
A car with 60 cm diameter tires is traveling at a constant speed of 100 km/hr. What is the angular velocity of the tires in rad/s
A solenoid with 500 tunrs per cm, length 18cm, radius of r=10mm and a resistance of R=20 . The coil carries a current i=2A . What is the flux, through the coil ? What is the self-inductance L of the coil? What is the rate of change of the current in ..
a 592.5 n window washer is standing on a uniform sca?old supported by a vertical rope at each end. the sca?old weighs
Four identical particles of mass 0.608 kg each are placed at the vertices of a 4.08 m x 4.08 m square and held there by four massless rods, What is the rotational inertia of this rigid body
A Carnot engine whose high-temperature reservoir is at 680{\rm K} takes in 530{\rm J} of heat at this temperature in each cycle, What is the temperature of the low-temperature reservoir
A piece of sandston with a bulk volume of 1.3 cc is contained ina 5-cc cell filled with helium at 760 mm Hg. Temperature ismaintained constant and the cell is opened to another evacuatedcell the same volume.
A beam of ultraviolet radiation, with frequency of 2.64x1015 Hz is directed on a clean metal surface. The work function of the metal is 3.40 eV. Calculate the maximum kinetic energy for an electron dislodged from the surface by the radiation.
A small motor is mounted on the axis of a space probe with its rotor (the rotating part of the motor) parallel to the axis of the probe. Through how many revolutions has the rotor turned
A proton and an electron are fixed in space with a separation of 911 nm. Calculate the electric potential at the midpoint between the two particles, Find the potential and the magnitude of the force.
The total kinetic energy in one mole of nitrogen is 4,000 J. what is the root mean-square velocity of an individual particle in the ideal gas
In changing the state of a gas adiabatically from an equilibrium state A to another equilibrium state B, how much is the net work done by the system in the latter case
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