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If the speed of sound in air is 340 m/s, what is approximately the length of a shortest air column closed at one end that will respong to a tuning fork of frequency 112 Hz? Answer in cm.
A 2.83-kg object is thrown vertically upward from the surface of Mars, where the acceleration due to gravity is g1 = 3.71 m/s2. The initial velocity is v1, and the object reaches a maximum height of y1.
An object undergoing simple harmonic motion takes 0.34 s to travel from one point of zero velocity to the next such point. The distance between those points is 40 cm. Calculate the frequency of the motion
question a sample of an ideal gas with with a molecular weight of 5 is in a thermodynamic state having p 1.6 atm v
A running house cat has 11.0 of kinetic energy at speed. What would her kinetic energy be if she ran half as fast as the speed
A soccer player kicks a rock horizontally off a 34.0-m-high cliff into a pool of water. what was the initial speed given to the rock
A wire 2.80 m in length carries a current of 7.60 A in a region where a uniform magnetic field has a magnitude of 0.490 T. Calculate the magnitude of the magnetic force on the wire
two conductors having net charges of 10.0microc and -10.0 microc have a potential difference of 10.0 v between them.a
Water flowing out of a horizontal pipe emerges through a nozzle. The radius of the pipe is 2.1 cm, and the radius of the nozzle is 0.47 cm. The speed of the water in the pipe is 0.67 m/s. Treat the water as an ideal fluid, and determine the absolu..
A sample of an ideal gas is at a temperature of 300 K. The rms molecular speed at this temperature is measured as 1368 m/s. Calculate the mass of a molecule of this gas
a 10.0 ohm resistor a 12x10-6 f capacitor and a 17x10-3 h inductor are connected in series to a 155-v generator.
A chair of weight 74.0 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 47.0 N directed at an angle of 41.0^circ below the horizontal and the chair slides along floor.
An electron moving at 3.60 103 m/s in a 1.10 T magnetic field experiences a magnetic force of 1.40 10-16 N. What angle does the velocity of the electron make with the magnetic field? There are two answers between 0° and 180°. 1 ° (smaller value) 2 ° ..
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