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A tuning fork with a frequency of 440 Hz is held just above the top of a uniform glass tube containing water. The glass tube can help excite the column of air above the water to form standing waves. The level of the column of air above water can be changed by a spigot at the botom of the glass tube. As the water is drained out, the sound intensity of the fork is enhanced when the air column has a length of 0.6m and again when the air column has a length of 1.0m. What is the speed of sound in air?
Two particles with masses 2m and 6m are moving toward each other along the x axis with the same initial speeds vi. Find the final speeds of the particles
Positive charges with magnitudes 3.50 mC and 6.75mC are located at the origin and at the point (10,0) metters on the x axis, respectively. What are the strength and direction of the field they generate at the point (0,10) on the y axis?
On an essentially frictionless horizontal ice-skating rink, a skater moving at 3.1m/s encounters a rough patch that reduces her speed by 42% to a friction force that is 24% of her weight
A playground carousel is rotating counterclockwise about its center on frictionless bearings. Find the final angular speed of the carousel
find the angular speed after the grindstone. what must be its minimum mass so that material on its surface remains in place during the rapid rotation.
What is the physics behind everyday sayings
find out the change in electric potential energy. For lengths of 1.000 m, 0.750 m, and 0.500 m, total time.
Compute the x-coordinate of the center of mass XCM. Suppose that the mass of the rod is small enough to be ignored in your calculation. Your answers must be accurate to within 0.1 cm.
An aircraft takes off at 203 km/h after accelerating from rest at 2.14 m/s2. What is the minimum runway length required
When driving west toward the Rocky Mountains, you see a peak 2.8 above the horizon. Your GPS gives your current elevation as 1500, Find the peak's elevation
A baseball has a mass of 0.140 kg, and it is pitched towards home plate at a speed of 54.0 m/s. what is the final speed of the ball
A proton is accelerated from rest through a potential difference of 350MV, What's the ratio of kinetic to rest energy
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