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Two loudspeakers in a 20 room emit 678 sound waves along the x-axis. What is the smallest distance between the speakers for which the interference of the sound waves is destructive?
A 65 kg person sits 0.5 m from the edge of a 2 m long beam that extends fom a building. how much the tension causes the cable to stretch
A block of mass m is attached to a fixed wall by means of a spring whose force constant is k. The block slides on an inclined plane of angle θ. The kinetic friction coefficient between the block and the inclined surface is μ.
An old-style TV set places 20 kV across two plates of a parallel plate capacitor. What is the speed of the electron when it exits the hole in the plate
A single chain supports a pulley whose weight is 40 N. Two identical 80-N weights are then connected with a cord that passes over the pulley
The supersonic aircraft Concorde has a length of 63.0 m when sitting on the ground on a typical day when the temperature is 15.0 C . The Concorde is primarily made of aluminum. In flight at twice the speed of sound, friction with the air warms the Co..
Bacteria vary somewhat in size, but a diameter of 2.00?m is not unusual, What would be the volume (in cubic centimeters)
What is used up electric potential energy of charge carriers
Calculate the direction of the average force on the ball during the contact . The magnitude of the average force is 4700N
A proton is captured by an oxygen-16 atom which in turns emits a deuteron. find the mass number of the product isotope
Consider a one-dimensional particle of mass m feeling the inverse harmonic oscillator potential V=-1/2kx^2 (k>0)
A 7.00 g bullet, when fired from a gun into a 1.00 kg block of wood held in a vise, penetrates the block to a depth of 8.00 cm. To what depth will the bullet penetrate the block in this case
two speakers spaced a distance 1.5 m apart emit coherent sound waves at a frequency of 680 hz in all directions. the
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