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An organ pipe is open at both ends. It is producing sound at its third harmonic, the frequency of which is 262 Hertz. The speed of sound is 343 m/s. Determine what is the length of the pipe?
A 130 g ball with speed 7.5 m/s strikes a wall perpendicularly and rebounds in the opposite direction with the same speed. find the magnitudes of the average force on the wall
A robot probe drops a camera off the rim of a 388 m high cliff on Mars, where the free-fall
A projectile is launched on an unnamed planet. The projectiles vertical position is y(t)= -5t^2 + 15t +50, find the vertical velocity of the projectile launched
Radioactive decay of granite and other rocks in the Earth's interior provides sufficient energy to keep the interior molten, heat lava, and supply warmth to natural hot springs.
What is the magnitude of net force causing the acceleration.
a bullet of mass 50 g traveling at 400 m/s due north strikes a rock of mass 500 g at rest and ricochets off the rock going due east. How much energy was lost in the collision
The maximum induced emf in a generator rotating at 249 rpm is 44 V. How fast must the rotor of the generator rotate
Use the virial theorem to derive the Bonnor-Ebert instability. Explain the physics of the Bonnor-Ebert instability in as much detail as possible.
You are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. How far away are the cliffs
A constant force, F = (4.51, ?3.79, 2.30) N, acts on an object of mass 18.2 kg, What is the total work done by this force
An aluminum rod is 17.0 cm long at20°C and has a mass of 350 g. If 14000 J of energy is added to the rod by heat, what is the change in length of the rod
An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to half its original radius, what is the flow speed in the narrower section
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