Find the wavelength of the ultrasonic wave
Find the wavelength of the ultrasonic wave emitted by a bat if it has a frequency of 4.0x 10^4 Hz.
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The 50 kg circular lead piston shown in the figure floats on 0.450 of compressed air. What is the piston height if the temperature is 30C?
If a quantity of gas in a piston cylinder has a volume of 0.150 m3 and is initially at room temperature. what will be the temperature of the gas in degrees Celsius when it has expanded to a volume of 0.600 m3?
Immediately after the collision, Gretzky is moving at 1.5 m/s in his original direction. You can ignore external horizontal forces applied by the ice to the skaters during the collision. Calculate the change in the combined kinetic energy of the t
A rotating cylinder about 16 km long and 7.0 km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it will experience the same acceleration due to gravity as on Earth?
A 361 kg mass is brought close to a second mass of 187 kg on a frictional surface with coefficient of friction 0.4. At what distance will the second mass be- gin to slide toward the first mass? The acceleration of gravity is 9.8 m/s2 and the value
Identify an describe four soil factord that are critical determinants of selecting drip irrigation versus flood irrigation.
What is the acceleration of a rising hot-air balloon if the ratio of the air density outside the balloon to that inside is 1.39? Neglect the mass of the balloon fabric and the basket.
Water flows through a horizontal tube of diameter 3.0 m that is joined to a second horizontal tube of diameter 2.2 . The pressure difference between the tubes is 8.0 kpa . Find the speed of flow in the first tube.
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