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a) Assuming the speed of sound is still 343 m/s, how long should a closed-end organ pipe be if it is to have a fundamental frequency of 294 Hz?
b) What is the frequency of the first overtone (second harmonic) for this closed-end pipe?
radiation from a star reaches a planet's surface at an average rate of 2700 w/m^2, Find the force exerted on a roof that has dimensions 10x20 m
A 34.7 m long aluminum wire at a temperature of 24.3 oC has a radius of 0.295 mm. what is the resulting current in the wire
At a temperature of 0° C, the mass and volume of a fluid are 798 kg and 1.25 m3. The coefficient of volume expansion is 1.25 10-3(° C)?1. What is the density of the fluid when the temperature has risen to 21.0° C
two identical capacitors store different amounts of energy capacitor a stores 2.4 x 10-3 j and capacitor b stores 6.7 x
An 75.0-N crate of apples sits at rest on a ramp that runs from the ground to the bed of a truck. The ramp is inclined at 30.0° to the ground. What is the direction of the contact force
A stunt driver is attempting to jump 20 cars of total length of 42m using an inclined ramp. Calculate how long the stunt driver is in the air during this stunt
A wire is formed into a120 turn loop whose diameter is 35 cm and the resistance of theloop is 4 ohms. The loop is on the floor a downward magnetic isincreasing according to the formula b(t) =4t^6+5t+2
derive an equation for centripetal acceleration starting with a particle moving with constant speed in a circle of
Shareen finds that when she drives her motor boat upstream she can travel with a speed of only 8 m/s, Find the current of the river on which Shareen is traveling
A certain cylindrical drum is 3 meters in height. It filled with with water. Atmospheric pressure is 10^5 Pa, and the density of water is 1000 gl/m^3. What is the water pressure at the bottom of the barrel
a 1.0cm -tall candle flame is 2.0m from a wall. you happen to have a lens with a focal length of 42cm . a how many
A ball is thrown horizontally from the top of a 60.0-m building and lands 100.0 m from the base of the building. Ignore air resistance. (a) How long is the ball in the air?
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