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Here is the problem which I am struggling on, please help me!
Problem: On a hot summer day, the temperature of air in Arizona reaches 100°F. What is the speed of sound in air at this temperature?
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A capacitor is connected across the terminals of an ac generator that has a frenquency of 460 Hz and supplies a voltage of 24 V. When a second capacitor is connected in parallel with the first one, the current from the generator increases by 0.18 A. ..
Two capacitors are connected parallel to each other and connected to the battery with voltage 25V. By how much energy of the system decreases
A potter's wheel (a solid, uniform disk) of mass 5.7 kg and radius 0.65 m spins about its central axis. A 2.1 kg lump of clay is dropped onto the wheel at a distance 0.41 m from the axis. Calculate the rotational inertia of the system.
A hot water stream at 80 degrees C enters a mixing chamber with a mass flow rate of 0.5kg/s where it is mixed with a stream of cold water at 20 degrees C. If it is desired that the mixture leave the chamber at 42 degrees C,
it is believed that a large electric fish known as torpedo occidentalis uses electricity to shock its victims. a
In a series R-L-C circuit, R = 280? , XC = 240?and XL = 600? . The average power consumed in the resistor is 60.0W, What is the power factor of the circuit
Determine what minimum horsepower must a motor have to be able to drag a 350 kilogram block up a 15o ramp at a speed of 1.50 m/s if the coefficient of kinetic friction is 0.25
A lead block is suspended from the underside of a 0.8 kg block of wood of density of 720 kg/m3. determine the mass of the lead block
A spring stretches by 0.0240 m when a 3.40-kg object is suspended from its end. How much mass should be attached to this spring
A quantity of an ideal gas is contained in a balloon. Initially the gas temperature is 27°C, What is the new temperature of the gas
A particle has a charge of 600 o C and a mass of 0.6 nkg. This particle is placed in a uniform electric field of 1,200 N/C. Find the a) electrostatic force acting on the mass. If the particle is free from rest what is its acceleration.
A pendulum is made of a long narrow stainless steel rod and has aperiod of T seconds at -200.0 degrees C. If the temperatureincreases to +400.0 degrees C, what is the new period?
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